{"id":27244,"date":"2025-11-10T17:46:28","date_gmt":"2025-11-10T09:46:28","guid":{"rendered":"https:\/\/xjysilicone.com\/?p=27244"},"modified":"2025-11-10T17:46:39","modified_gmt":"2025-11-10T09:46:39","slug":"how-to-prepare-high-performance-silicone-thermal-conductivity-materials%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/www.xjysilicone.com\/fr\/how-to-prepare-high-performance-silicone-thermal-conductivity-materials.html","title":{"rendered":"Comment pr\u00e9parer des mat\u00e9riaux silicone thermo-conducteurs hautes performances ?"},"content":{"rendered":"<div class=\"blog-posts single-post\" style=\"border-bottom: 2px solid #00999a;\" uia-uid=\"0|1\">\n<article class=\"post post-large blog-single-post border-0 m-0 p-0\">\n<div class=\"post-content ml-0\">\n<p style=\"margin:0pt 0pt 0.0001pt; text-align:justify\"><span style=\"color:#000000;\"><span style=\"font-size:10.5pt\"><span style=\"font-family:Calibri\"><span style=\"font-size:12.0000pt\"><span style=\"font-family:'Open Sans'\">Avec le d\u00e9veloppement des produits \u00e9lectroniques vers la miniaturisation, la multifonctionnalit\u00e9 et les hautes performances, la technologie d'int\u00e9gration syst\u00e8me 3D \u00e0 haute densit\u00e9 a vu le jour. L'int\u00e9gration syst\u00e8me tridimensionnelle offre une efficacit\u00e9 d'assemblage \u00e9lev\u00e9e, une vitesse de transmission des signaux rapide et une meilleure fiabilit\u00e9 du syst\u00e8me. Malgr\u00e9 ces avantages, la consommation \u00e9nerg\u00e9tique importante entra\u00eene une augmentation de la chaleur par unit\u00e9 de surface du substrat, et une attention croissante est port\u00e9e \u00e0 la dissipation thermique. Cela impose des exigences de performance plus \u00e9lev\u00e9es pour les mat\u00e9riaux d'interface thermique. Gr\u00e2ce \u00e0 la conception de dissipation thermique, la chaleur accumul\u00e9e dans l'interface thermique du produit \u00e9lectronique est \u00e9vacu\u00e9e en temps opportun pour maintenir la temp\u00e9rature de fonctionnement dans une plage de conception raisonnable, garantissant ainsi la stabilit\u00e9 du syst\u00e8me et la fiabilit\u00e9 du produit. La conductivit\u00e9 thermique d\u00e9crit la capacit\u00e9 d'un mat\u00e9riau \u00e0 conduire la chaleur. Plus la conductivit\u00e9 thermique est \u00e9lev\u00e9e, meilleure est la conduction thermique du mat\u00e9riau. Par cons\u00e9quent, l'exigence de base pour les mat\u00e9riaux de dissipateurs thermiques hautes performances est une conductivit\u00e9 thermique suffisamment \u00e9lev\u00e9e.<\/span><\/span><\/span><\/span><\/span><\/p>\n<p style=\"margin:0pt 0pt 0.0001pt; text-align:justify\">&nbsp;<\/p>\n<p style=\"margin:0pt 0pt 0.0001pt; text-align:justify\"><span style=\"color:#000000;\"><span style=\"font-size:10.5pt\"><span style=\"font-family:Calibri\"><span style=\"font-size:12.0000pt\"><span style=\"font-family:'Open Sans'\">Les caract\u00e9ristiques cl\u00e9s des joints thermoconducteurs en caoutchouc silicone hautes performances doivent g\u00e9n\u00e9ralement r\u00e9pondre aux exigences de conductivit\u00e9 thermique \u00e9lev\u00e9e, bonne fiabilit\u00e9 du produit, bonne adh\u00e9rence, facilit\u00e9 d'utilisation, absorption des chocs et r\u00e9duction du bruit, respect de l'environnement, etc. En plus de la conductivit\u00e9 thermique de base, le client s'int\u00e9ressera \u00e9galement \u00e0 la d\u00e9formation en compression, l'\u00e9volution de la r\u00e9sistance thermique, la pression instantan\u00e9e et la pression \u00e0 long terme du joint thermique ; pour les produits fins, nous porterons \u00e9galement attention \u00e0 la performance op\u00e9rationnelle du produit, principalement la valeur de la force de pelage, etc. <\/span><\/span><\/span><\/span><\/span><\/p>\n<p style=\"margin:0pt 0pt 0.0001pt; text-align:justify\">&nbsp;<\/p>\n<p style=\"margin:0pt 0pt 0.0001pt; text-align:justify\"><span style=\"color:#000000;\"><span style=\"font-size:10.5pt\"><span style=\"font-family:Calibri\"><span style=\"font-size:12.0000pt\"><span style=\"font-family:'Open Sans'\">\u00c9tant donn\u00e9 que le joint thermoconducteur sert uniquement \u00e0 combler les espaces et que la contrainte appliqu\u00e9e est tr\u00e8s faible, ses propri\u00e9t\u00e9s m\u00e9caniques ne sont g\u00e9n\u00e9ralement pas \u00e9lev\u00e9es, ce qui explique son utilisation r\u00e9pandue. Avec l'am\u00e9lioration continue des exigences de performance des produits \u00e9lectroniques, les sp\u00e9cifications des joints thermiques deviennent de plus en plus strictes. Les joints thermoconducteurs feront l'objet d'am\u00e9liorations continues. De nombreuses recherches ont \u00e9t\u00e9 men\u00e9es, mais la conductivit\u00e9 thermique reste souvent inf\u00e9rieure \u00e0 3.0 W\/(m\u00b7K), la formulation est incertaine et s'\u00e9carte de l'application pratique des produits, notamment en ce qui concerne la fiabilit\u00e9, peu \u00e9tudi\u00e9e. Dans cette exp\u00e9rience, une huile silicone r\u00e9active est utilis\u00e9e comme mat\u00e9riau de base, et un chargeur thermoconducteur haute performance est ajout\u00e9 pour pr\u00e9parer un joint thermique d'une conductivit\u00e9 thermique de 4,0 W\/(m\u00b7K). Le produit poss\u00e8de une bonne utilisabilit\u00e9 et fiabilit\u00e9 et peut r\u00e9pondre aux exigences des clients pour des joints thermiques hautes performances.<\/span><\/span><\/span><\/span><\/span><\/p>\n<p style=\"margin:0pt 0pt 0.0001pt; text-align:justify\">&nbsp;<\/p>\n<p style=\"margin: 0pt 0pt 0.0001pt 40px; text-align: justify;\"><a href=\"#1\"><span style=\"font-size:10.5pt\"><span style=\"font-family:Calibri\"><span style=\"font-size:12.0000pt\"><span style=\"font-family:'Open Sans'\">1. Exp\u00e9rimentation<\/span><\/span><\/span><\/span><\/a><\/p>\n<p style=\"margin: 0pt 0pt 0.0001pt 80px; text-align: justify;\"><a href=\"#1.1\"><span style=\"font-size:10.5pt\"><span style=\"font-family:Calibri\"><span style=\"font-size:12.0000pt\"><span style=\"font-family:'Open Sans'\">1.1 Mati\u00e8res premi\u00e8res et \u00e9quipements principaux<\/span><\/span><\/span><\/span><\/a><\/p>\n<p style=\"margin: 0pt 0pt 0.0001pt 80px; text-align: justify;\"><a href=\"#1.2\"><span style=\"font-size:10.5pt\"><span style=\"font-family:Calibri\"><span style=\"font-size:12.0000pt\"><span style=\"font-family:'Open Sans'\">1.2 Pr\u00e9paration des coussins thermiques en silicone<\/span><\/span><\/span><\/span><\/a><\/p>\n<p style=\"margin: 0pt 0pt 0.0001pt 80px; text-align: justify;\"><a href=\"#1.3\"><span style=\"font-size:10.5pt\"><span style=\"font-family:Calibri\"><span style=\"font-size:12.0000pt\"><span style=\"font-family:'Open Sans'\">1.3 Test de performance<\/span><\/span><\/span><\/span><\/a><\/p>\n<p style=\"margin: 0pt 0pt 0.0001pt 40px; text-align: justify;\"><a href=\"#2\"><span style=\"font-size:10.5pt\"><span style=\"font-family:Calibri\"><span style=\"font-size:12.0000pt\"><span style=\"font-family:'Open Sans'\">2. R\u00e9sultats et discussion<\/span><\/span><\/span><\/span><\/a><\/p>\n<p style=\"margin: 0pt 0pt 0.0001pt 80px; text-align: justify;\"><a href=\"#2.1\"><span style=\"font-size:10.5pt\"><span style=\"font-family:Calibri\"><span style=\"font-size:12.0000pt\"><span style=\"font-family:'Open Sans'\">2.1 Indice de performance du joint thermique<\/span><\/span><\/span><\/span><\/a><\/p>\n<p style=\"margin: 0pt 0pt 0.0001pt 80px; text-align: justify;\"><a href=\"#2.2\"><span style=\"font-size:10.5pt\"><span style=\"font-family:Calibri\"><span style=\"font-size:12.0000pt\"><span style=\"font-family:'Open Sans'\">2.2 Effet de l'\u00e9paisseur sur la d\u00e9formation en compression du joint thermique<\/span><\/span><\/span><\/span><\/a><\/p>\n<p style=\"margin: 0pt 0pt 0.0001pt 80px; text-align: justify;\"><span style=\"font-size:10.5pt\"><span style=\"font-family:Calibri\"><span style=\"font-size:12.0000pt\"><span style=\"font-family:'Open Sans'\"><a id=\"1\" name=\"1\"><\/a><a href=\"#2.3\">2.3 Effet de l'\u00e9paisseur sur la r\u00e9sistance thermique du joint thermique<\/a><\/span><\/span><\/span><\/span><\/p>\n<p style=\"margin: 0pt 0pt 0.0001pt 80px; text-align: justify;\"><a href=\"#2.4\"><span style=\"font-size:10.5pt\"><span style=\"font-family:Calibri\"><span style=\"font-size:12.0000pt\"><span style=\"font-family:'Open Sans'\">2.4 Effet d'une pression instantan\u00e9e et \u00e0 long terme sur la d\u00e9formation en compression des joints thermoconducteurs<\/span><\/span><\/span><\/span><\/a><\/p>\n<p style=\"margin: 0pt 0pt 0.0001pt 80px; text-align: justify;\"><span style=\"font-size:10.5pt\"><span style=\"font-family:Calibri\"><span style=\"font-size:12.0000pt\"><span style=\"font-family:'Open Sans'\"><a id=\"1.1\" name=\"1.1\"><\/a><a href=\"#2.5\">2.5 Effet de la force de pelage sur la performance op\u00e9rationnelle des joints thermoconducteurs<\/a><\/span><\/span><\/span><\/span><\/p>\n<p style=\"margin: 0pt 0pt 0.0001pt 80px; text-align: justify;\"><a href=\"#2.6\"><span style=\"font-size:10.5pt\"><span style=\"font-family:Calibri\"><span style=\"font-size:12.0000pt\"><span style=\"font-family:'Open Sans'\">2.6 Fiabilit\u00e9 des coussins thermiques<\/span><\/span><\/span><\/span><\/a><\/p>\n<p style=\"margin: 0pt 0pt 0.0001pt 40px; text-align: justify;\"><a href=\"#3\"><span style=\"font-size:10.5pt\"><span style=\"font-family:Calibri\"><span style=\"font-size:12.0000pt\"><span style=\"font-family:'Open Sans'\">3. Conclusion<\/span><\/span><\/span><\/span><\/a><\/p>\n<p style=\"margin: 0pt 0pt 0.0001pt 40px; text-align: justify;\"><a href=\"#XJY\"><span style=\"font-size:10.5pt\"><span style=\"font-family:Calibri\"><span style=\"font-size:12.0000pt\"><span style=\"font-family:'Open Sans'\">XJY Silicones \u2013 First choice raw material supplier of silicone thermally conductive materials<\/span><\/span><\/span><\/span><\/a><\/p>\n<h2 style=\"margin-top:13pt; margin-bottom:13pt; text-align:justify\"><span class=\"ez-toc-section\" id=\"1_Experiment\"><\/span><span style=\"color:#000000;\"><span style=\"font-size:28px;\"><span style=\"line-height:172%\"><span style=\"font-family:Arial\"><b><span style=\"font-family:'Open Sans'\">1. Exp\u00e9rimentation<\/span><\/b><\/span><\/span><\/span><\/span><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3 style=\"margin-top: 13pt; margin-bottom: 13pt; text-align: justify; margin-left: 40px;\"><span class=\"ez-toc-section\" id=\"11_Main_raw_materials_and_equipment\"><\/span><span style=\"color:#000000;\"><span style=\"font-size:22px;\"><span style=\"line-height:172%\"><span style=\"font-family:Calibri\"><b><span style=\"font-family:'Open Sans'\">1.1 Mati\u00e8res premi\u00e8res et \u00e9quipements principaux<\/span><\/b><\/span><\/span><\/span><\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p style=\"margin:0pt 0pt 0.0001pt; text-align:justify\"><span style=\"color:#000000;\"><span style=\"font-size:10.5pt\"><span style=\"font-family:Calibri\"><span style=\"font-size:12.0000pt\"><span style=\"font-family:'Open Sans'\"><a id=\"1.2\" name=\"1.2\"><\/a>Huile silicone vinylique de faible viscosit\u00e9 : viscosit\u00e9 200 mPa\u00b7s, fraction molaire de vinyle 0,35 % ; huile silicone vinylique de haute viscosit\u00e9 : viscosit\u00e9 5000 mPa\u00b7s, fraction molaire de vinyle 0,35 % ; huile silicone hydrog\u00e9n\u00e9e : viscosit\u00e9 50 mm\u00b2\/s, fraction massique d'hydrog\u00e8ne actif 0,1 % ; r\u00e9sine silicone modifi\u00e9e ; catalyseur au platine, inhibiteur ; alumine : puret\u00e9 \u2265 99 %, diam\u00e8tre moyen des particules 20 \u00b5m ; nitrure d'aluminium : puret\u00e9 99,5 %, diam\u00e8tre moyen des particules 0,5 \u00b5m ; alumine sph\u00e9rique : puret\u00e9 \u2265 99,8 %, diam\u00e8tre moyen des particules 70 \u00b5m. Malaxeur \u00e0 double plan\u00e8te ; four, cycle thermique., <font face=\"\u5b8b\u4f53\">\uff61<\/font><\/span><\/span><\/span><\/span><\/span><\/p>\n<h3 style=\"margin-top: 13pt; margin-bottom: 13pt; text-align: justify; margin-left: 40px;\"><span class=\"ez-toc-section\" id=\"12_Preparation_of_silicone_thermal_pads\"><\/span><span style=\"color:#000000;\"><span style=\"font-size:22px;\"><span style=\"line-height:172%\"><span style=\"font-family:Calibri\"><b><span style=\"font-family:'Open Sans'\">1.2 Pr\u00e9paration des coussins thermiques en silicone<\/span><\/b><\/span><\/span><\/span><\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p style=\"margin:0pt 0pt 0.0001pt; text-align:justify\"><span style=\"color:#000000;\"><span style=\"font-size:10.5pt\"><span style=\"font-family:Calibri\"><span style=\"font-size:12.0000pt\"><span style=\"font-family:'Open Sans'\"><a id=\"1.3\" name=\"1.3\"><\/a>Ajouter dans la cuve de m\u00e9lange 80 g d'huile silicone vinylique de faible viscosit\u00e9, 8 g d'huile silicone vinylique de haute viscosit\u00e9, 6 g d'huile silicone hydrog\u00e9n\u00e9e, 5 g de r\u00e9sine silicone modifi\u00e9e, 1,0 g de catalyseur et 0,2 g d'inhibiteur, m\u00e9langer pendant 0,5 h et mettre sous vide pour \u00e9liminer les bulles ; ajouter ensuite 55 g de nitrure d'aluminium, m\u00e9langer 0,5 h, puis ajouter 445 g d'alumine, m\u00e9langer uniform\u00e9ment, et mettre sous vide pour \u00e9liminer les bulles ; enfin, ajouter 402 g d'alumine sph\u00e9rique, m\u00e9langer 0,5 h et mettre sous vide pour \u00e9liminer les bulles. La p\u00e2te obtenue est mise en forme entre des films de d\u00e9moulage \u00e0 une \u00e9paisseur d\u00e9finie, d'abord vulcanis\u00e9e \u00e0 120 \u00b0C pendant 30 minutes, puis cuite \u00e0 150 \u00b0C pendant 30 minutes pour obtenir un coussin thermique en silicone conducteur.<\/span><\/span><\/span><\/span><\/span><\/p>\n<h3 style=\"margin-top: 13pt; margin-bottom: 13pt; text-align: justify; margin-left: 40px;\"><span class=\"ez-toc-section\" id=\"13_Performance_Test\"><\/span><span style=\"color:#000000;\"><span style=\"font-size:22px;\"><span style=\"line-height:172%;\"><span style=\"font-family:Calibri;\"><b>1.3 Test de performance<\/b><\/span><\/span><\/span><\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<ul>\n<li style=\"margin:0pt 0pt 0.0001pt; text-align:justify\" value=\"50\"><span style=\"color:#000000;\"><span style=\"font-size:10.5pt\"><span style=\"font-family:Calibri\"><span style=\"font-size:12.0000pt\"><span style=\"font-family:'Open Sans'\">Conductivit\u00e9 thermique : Utilisation de l'instrument de mesure de conductivit\u00e9 thermique TPS2500S, test\u00e9 conform\u00e9ment \u00e0 la norme ASTMD5470-2006.<\/span><\/span><\/span><\/span><\/span><\/li>\n<li style=\"margin:0pt 0pt 0.0001pt; text-align:justify\" value=\"50\"><span style=\"color:#000000;\"><span style=\"font-size:10.5pt\"><span style=\"font-family:Calibri\"><span style=\"font-size:12.0000pt\"><span style=\"font-family:'Open Sans'\">R\u00e9sistance thermique : Utilisation du m\u00e8tre de r\u00e9sistance thermique LW9389 test\u00e9 conform\u00e9ment \u00e0 la norme ASTMD5470-2006.<\/span><\/span><\/span><\/span><\/span><\/li>\n<li style=\"margin:0pt 0pt 0.0001pt; text-align:justify\" value=\"50\"><span style=\"color:#000000;\"><span style=\"font-size:10.5pt\"><span style=\"font-family:Calibri\"><span style=\"font-size:12.0000pt\"><span style=\"font-family:'Open Sans'\">Duret\u00e9 : Utilisation du testeur de duret\u00e9 type Shore OO.<\/span><\/span><\/span><\/span><\/span><\/li>\n<li style=\"margin:0pt 0pt 0.0001pt; text-align:justify\" value=\"50\"><span style=\"color:#000000;\"><span style=\"font-size:10.5pt\"><span style=\"font-family:Calibri\"><span style=\"font-size:12.0000pt\"><span style=\"font-family:'Open Sans'\">Densit\u00e9 : Utilisation du densim\u00e8tre v\u00e9ritable DPY-31 test\u00e9 par la m\u00e9thode de densit\u00e9 v\u00e9ritable \u00e0 l'h\u00e9lium.<\/span><\/span><\/span><\/span><\/span><\/li>\n<li style=\"margin:0pt 0pt 0.0001pt; text-align:justify\" value=\"50\"><span style=\"color:#000000;\"><span style=\"font-size:10.5pt\"><span style=\"font-family:Calibri\"><span style=\"font-size:12.0000pt\"><span style=\"font-family:'Open Sans'\">R\u00e9sistance \u00e0 la traction : Utilisation de la machine d'essai universelle \u00e9lectronique LS1 test\u00e9e conform\u00e9ment \u00e0 la norme ASTMD412-2006.<\/span><\/span><\/span><\/span><\/span><\/li>\n<li style=\"margin:0pt 0pt 0.0001pt; text-align:justify\" value=\"50\"><span style=\"color:#000000;\"><span style=\"font-size:10.5pt\"><span style=\"font-family:Calibri\"><span style=\"font-size:12.0000pt\"><span style=\"font-family:'Open Sans'\">Allongement \u00e0 la rupture : Utilisation de la machine d'essai universelle \u00e9lectronique de contr\u00f4le ETM103A test\u00e9e conform\u00e9ment \u00e0 la norme ASTMD412-2006.<\/span><\/span><\/span><\/span><\/span><\/li>\n<li style=\"margin:0pt 0pt 0.0001pt; text-align:justify\" value=\"50\"><span style=\"color:#000000;\"><span style=\"font-size:10.5pt\"><span style=\"font-family:Calibri\"><span style=\"font-size:12.0000pt\"><span style=\"font-family:'Open Sans'\">R\u00e9sistivit\u00e9 volumique : Utilisation du testeur d'isolation 1508 test\u00e9 conform\u00e9ment \u00e0 la norme ASTMD257-2007 ;<\/span><\/span><\/span><\/span><\/span><\/li>\n<li style=\"margin:0pt 0pt 0.0001pt; text-align:justify\" value=\"50\"><span style=\"color:#000000;\"><span style=\"font-size:10.5pt\"><span style=\"font-family:Calibri\"><span style=\"font-size:12.0000pt\"><span style=\"font-family:'Open Sans'\">Permittivit\u00e9 relative : Testeur de tension de claquage HJC-50kV test\u00e9 conform\u00e9ment \u00e0 la norme ASTMD150-2011 ;<\/span><\/span><\/span><\/span><\/span><\/li>\n<li style=\"margin:0pt 0pt 0.0001pt; text-align:justify\" value=\"50\"><span style=\"color:#000000;\"><span style=\"font-size:10.5pt\"><span style=\"font-family:Calibri\"><span style=\"font-size:12.0000pt\"><span style=\"font-family:'Open Sans'\">Force de pelage \u00e0 180\u00b0 : Test\u00e9 par le testeur de force de pelage AR-1000.<\/span><\/span><\/span><\/span><\/span><\/li>\n<li style=\"margin:0pt 0pt 0.0001pt; text-align:justify\" value=\"50\"><span style=\"color:#000000;\"><span style=\"font-size:10.5pt\"><span style=\"font-family:Calibri\"><span style=\"font-size:12.0000pt\"><span style=\"font-family:'Open Sans'\">Propri\u00e9t\u00e9 de vieillissement \u00e0 haute temp\u00e9rature : Adopte le four \u00e0 cycle thermique Z120306. M\u00e9thode de test : L'\u00e9chantillon est plac\u00e9 \u00e0 150\u2103 pendant 440h puis refroidi \u00e0 temp\u00e9rature ambiante pour tester la r\u00e9sistance thermique ;<\/span><\/span><\/span><\/span><\/span><\/li>\n<li style=\"margin:0pt 0pt 0.0001pt; text-align:justify\" value=\"50\"><span style=\"color:#000000;\"><span style=\"font-size:10.5pt\"><span style=\"font-family:Calibri\"><span style=\"font-size:12.0000pt\"><span style=\"font-family:'Open Sans'\"><a id=\"2\" name=\"2\"><\/a>Propri\u00e9t\u00e9 de vieillissement par choc thermique et froid : Test\u00e9e par la bo\u00eete de choc haute et basse temp\u00e9rature WIEETS60. M\u00e9thode de test : test de cycle froid et chaleur de -40~125\u2103, l'\u00e9chantillon est plac\u00e9 \u00e0 -40\u2103 pendant 0,5h puis \u00e0 125\u2103 pendant 0,5h, ce processus constitue 1 cycle, un total de 440 cycles sont test\u00e9s puis refroidis \u00e0 temp\u00e9rature ambiante pour <a id=\"2.1\" name=\"2.1\"><\/a>tester la r\u00e9sistance thermique de l'\u00e9chantillon.<\/span><\/span><\/span><\/span><\/span><\/li>\n<li style=\"margin:0pt 0pt 0.0001pt; text-align:justify\" value=\"50\"><span style=\"color:#000000;\"><span style=\"font-size:10.5pt\"><span style=\"font-family:Calibri\"><span style=\"font-size:12.0000pt\"><span style=\"font-family:'Open Sans'\">Propri\u00e9t\u00e9 de vieillissement en humidit\u00e9 et chaleur : Utilise la bo\u00eete \u00e0 temp\u00e9rature et humidit\u00e9 constantes KTHB-415TBS. La r\u00e9sistance thermique de l'\u00e9chantillon a \u00e9t\u00e9 mesur\u00e9e apr\u00e8s avoir \u00e9t\u00e9 plac\u00e9 \u00e0 85\u00b0C et \u00e0 une humidit\u00e9 relative de 85% pendant 440 heures puis refroidi \u00e0 temp\u00e9rature ambiante.<\/span><\/span><\/span><\/span><\/span><\/li>\n<li style=\"margin:0pt 0pt 0.0001pt; text-align:justify\" value=\"50\"><span style=\"color:#000000;\"><span style=\"font-size:10.5pt\"><span style=\"font-family:Calibri\"><span style=\"font-size:12.0000pt\"><span style=\"font-family:'Open Sans'\">Pression instantan\u00e9e : Au taux de compression sp\u00e9cifi\u00e9, le test atteint la pression de d\u00e9formation par compression sp\u00e9cifi\u00e9e.<\/span><\/span><\/span><\/span><\/span><\/li>\n<li style=\"margin:0pt 0pt 0.0001pt; text-align:justify\" value=\"50\"><span style=\"color:#000000;\"><span style=\"font-size:10.5pt\"><span style=\"font-family:Calibri\"><span style=\"font-size:12.0000pt\"><span style=\"font-family:'Open Sans'\">Pression \u00e0 long terme : Au taux de compression sp\u00e9cifi\u00e9, le test maintient la d\u00e9formation par compression sp\u00e9cifi\u00e9e pendant plus de 5 minutes.&nbsp;<\/span><\/span><\/span><\/span><\/span><\/li>\n<\/ul>\n<h2 style=\"margin-top:13pt; margin-bottom:13pt; text-align:justify\"><span class=\"ez-toc-section\" id=\"2_Results_and_Discussion\"><\/span><span style=\"color:#000000;\"><span style=\"font-size:28px;\"><span style=\"line-height:172%\"><span style=\"font-family:Arial\"><b><span style=\"font-family:'Open Sans'\">2. R\u00e9sultats et discussion<\/span><\/b><\/span><\/span><\/span><\/span><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3 style=\"margin-top: 13pt; margin-bottom: 13pt; text-align: justify; margin-left: 40px;\"><span class=\"ez-toc-section\" id=\"21_Performance_index_of_heat-conducting_gasket\"><\/span><span style=\"color:#000000;\"><span style=\"font-size:22px;\"><span style=\"line-height:172%\"><span style=\"font-family:Calibri\"><b><span style=\"font-family:'Open Sans'\">2.1 Indice de performance du joint thermique<\/span><\/b><\/span><\/span><\/span><\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p style=\"margin:0pt 0pt 0.0001pt; text-align:justify\"><span style=\"color:#000000;\"><span style=\"font-size:10.5pt\"><span style=\"font-family:Calibri\"><span style=\"font-size:12.0000pt\"><span style=\"font-family:'Open Sans'\">Les exigences de conductivit\u00e9 thermique des coussinets thermiques hautes performances sont relativement \u00e9lev\u00e9es. En g\u00e9n\u00e9ral, une conductivit\u00e9 thermique \u00e9lev\u00e9e est obtenue par une quantit\u00e9 importante de charges thermoconductrices. Lorsque la quantit\u00e9 de charges thermoconductrices repr\u00e9sente 90% de la masse totale du syst\u00e8me, la conductivit\u00e9 thermique atteint 4,0 W\/m\u2022K ; \u00c0 ce moment, la densit\u00e9 est de 3,4g\/cm\u00b3. Compar\u00e9 au joint thermoconducteur ordinaire, l'allongement \u00e0 la rupture est nettement r\u00e9duit, et les excellentes performances d'isolation \u00e9lectrique sont toujours maintenues. Les propri\u00e9t\u00e9s des coussinets thermiques en silicone pr\u00e9par\u00e9s sont pr\u00e9sent\u00e9es dans le Tableau 1.<\/span><\/span><\/span><\/span><\/span><\/p>\n<p style=\"margin:0pt 0pt 0.0001pt; text-align:justify\">&nbsp;<\/p>\n<table class=\"MsoTableGrid\" style=\"border-collapse:collapse; border:1.0000pt solid #fcfcfc; font-family:&quot;Times New Roman&quot;; font-size:10pt\">\n<tbody>\n<tr>\n<td colspan=\"2\" style=\"border-bottom:1.0000pt solid #fcfcfc; background:#5a5a5a; width:426.1000pt; padding:0.0000pt 5.4000pt 0.0000pt 5.4000pt ; border-left:1.0000pt solid #fcfcfc; border-right:1.0000pt solid #fcfcfc; border-top:1.0000pt solid #fcfcfc\" valign=\"top\" width=\"568\">\n<p style=\"margin: 0pt 0pt 0.0001pt; text-align: center;\"><span style=\"color:#ffffff;\"><span style=\"font-size:10.5pt\"><span style=\"font-family:Calibri\"><span style=\"font-size:10.5000pt\"><span style=\"font-family:\u5b8b\u4f53\"><font face=\"Calibri\">Tableau 1 : <\/font><\/span><\/span><span style=\"font-size:10.5000pt\"><span style=\"font-family:Calibri\">Propri\u00e9t\u00e9s des joints thermiques en silicone<\/span><\/span><\/span><\/span><\/span><\/p>\n<\/td>\n<\/tr>\n<tr>\n<td style=\"border-bottom:1.0000pt solid #fcfcfc; background:#e4e4e4; width:213.0500pt; padding:0.0000pt 5.4000pt 0.0000pt 5.4000pt ; border-left:1.0000pt solid #fcfcfc; border-right:1.0000pt solid #fcfcfc; border-top:none\" valign=\"top\" width=\"284\">\n<p style=\"margin: 0pt 0pt 0.0001pt; text-align: center;\"><span style=\"color:#000000;\"><span style=\"font-size:10.5pt\"><span style=\"font-family:Calibri\"><span style=\"font-size:10.5000pt\"><span style=\"font-family:Calibri\">Articles de test<\/span><\/span><\/span><\/span><\/span><\/p>\n<\/td>\n<td style=\"border-bottom:1.0000pt solid #fcfcfc; background:#e4e4e4; width:213.0500pt; padding:0.0000pt 5.4000pt 0.0000pt 5.4000pt ; border-left:none; border-right:1.0000pt solid #fcfcfc; border-top:1.0000pt solid #fcfcfc\" valign=\"top\" width=\"284\">\n<p style=\"margin: 0pt 0pt 0.0001pt; text-align: center;\"><span style=\"color:#000000;\"><span style=\"font-size:10.5pt\"><span style=\"font-family:Calibri\"><span style=\"font-size:10.5000pt\"><span style=\"font-family:Calibri\">Performance<\/span><\/span><\/span><\/span><\/span><\/p>\n<\/td>\n<\/tr>\n<tr>\n<td style=\"border-bottom:1.0000pt solid #fcfcfc; background:#f2f2f2; width:213.0500pt; padding:0.0000pt 5.4000pt 0.0000pt 5.4000pt ; border-left:1.0000pt solid #fcfcfc; border-right:1.0000pt solid #fcfcfc; border-top:none\" valign=\"top\" width=\"284\">\n<p style=\"margin: 0pt 0pt 0.0001pt; text-align: center;\"><span style=\"color:#000000;\"><span style=\"font-size:10.5pt\"><span style=\"font-family:Calibri\"><span style=\"font-size:10.5000pt\"><span style=\"font-family:Calibri\">Conductivit\u00e9 thermique<\/span><\/span><\/span><\/span><\/span><\/p>\n<\/td>\n<td style=\"border-bottom:1.0000pt solid #fcfcfc; background:#f2f2f2; width:213.0500pt; padding:0.0000pt 5.4000pt 0.0000pt 5.4000pt ; border-left:none; border-right:1.0000pt solid #fcfcfc; border-top:none\" valign=\"top\" width=\"284\">\n<p style=\"margin: 0pt 0pt 0.0001pt; text-align: center;\"><span style=\"color:#000000;\"><span style=\"font-size:10.5pt\"><span style=\"font-family:Calibri\"><span style=\"font-size:10.5000pt\"><span style=\"font-family:\u5b8b\u4f53\"><font face=\"Calibri\">4.0<\/font><\/span><\/span><\/span><\/span><\/span><\/p>\n<\/td>\n<\/tr>\n<tr>\n<td style=\"border-bottom:1.0000pt solid #fcfcfc; background:#e4e4e4; width:213.0500pt; padding:0.0000pt 5.4000pt 0.0000pt 5.4000pt ; border-left:1.0000pt solid #fcfcfc; border-right:1.0000pt solid #fcfcfc; border-top:none\" valign=\"top\" width=\"284\">\n<p style=\"margin: 0pt 0pt 0.0001pt; text-align: center;\"><span style=\"color:#000000;\"><span style=\"font-size:10.5pt\"><span style=\"font-family:Calibri\"><span style=\"font-size:10.5000pt\"><span style=\"font-family:Calibri\"><a id=\"2.2\" name=\"2.2\"><\/a>Duret\u00e9 Shore<\/span><\/span><\/span><\/span><\/span><\/p>\n<\/td>\n<td style=\"border-bottom:1.0000pt solid #fcfcfc; background:#e4e4e4; width:213.0500pt; padding:0.0000pt 5.4000pt 0.0000pt 5.4000pt ; border-left:none; border-right:1.0000pt solid #fcfcfc; border-top:none\" valign=\"top\" width=\"284\">\n<p style=\"margin: 0pt 0pt 0.0001pt; text-align: center;\"><span style=\"color:#000000;\"><span style=\"font-size:10.5pt\"><span style=\"font-family:Calibri\"><span style=\"font-size:10.5000pt\"><span style=\"font-family:\u5b8b\u4f53\"><font face=\"Calibri\">50<\/font><\/span><\/span><\/span><\/span><\/span><\/p>\n<\/td>\n<\/tr>\n<tr>\n<td style=\"border-bottom:1.0000pt solid #fcfcfc; background:#f2f2f2; width:213.0500pt; padding:0.0000pt 5.4000pt 0.0000pt 5.4000pt ; border-left:1.0000pt solid #fcfcfc; border-right:1.0000pt solid #fcfcfc; border-top:none\" valign=\"top\" width=\"284\">\n<p style=\"margin: 0pt 0pt 0.0001pt; text-align: center;\"><span style=\"color:#000000;\"><span style=\"font-size:10.5pt\"><span style=\"font-family:Calibri\"><span style=\"font-size:10.5000pt\"><span style=\"font-family:\u5b8b\u4f53\"><font face=\"Calibri\">D<\/font><\/span><\/span><span style=\"font-size:10.5000pt\"><span style=\"font-family:Calibri\">Densit\u00e9<\/span><\/span><\/span><\/span><\/span><\/p>\n<\/td>\n<td style=\"border-bottom:1.0000pt solid #fcfcfc; background:#f2f2f2; width:213.0500pt; padding:0.0000pt 5.4000pt 0.0000pt 5.4000pt ; border-left:none; border-right:1.0000pt solid #fcfcfc; border-top:none\" valign=\"top\" width=\"284\">\n<p style=\"margin: 0pt 0pt 0.0001pt; text-align: center;\"><span style=\"color:#000000;\"><span style=\"font-size:10.5pt\"><span style=\"font-family:Calibri\"><span style=\"font-size:10.5000pt\"><span style=\"font-family:\u5b8b\u4f53\"><font face=\"Calibri\">3.4<\/font><\/span><\/span><\/span><\/span><\/span><\/p>\n<\/td>\n<\/tr>\n<tr>\n<td style=\"border-bottom:1.0000pt solid #fcfcfc; background:#e4e4e4; width:213.0500pt; padding:0.0000pt 5.4000pt 0.0000pt 5.4000pt ; border-left:1.0000pt solid #fcfcfc; border-right:1.0000pt solid #fcfcfc; border-top:none\" valign=\"top\" width=\"284\">\n<p style=\"margin: 0pt 0pt 0.0001pt; text-align: center;\"><span style=\"color:#000000;\"><span style=\"font-size:10.5pt\"><span style=\"font-family:Calibri\"><span style=\"font-size:10.5000pt\"><span style=\"font-family:Calibri\">R\u00e9sistance \u00e0 la traction<\/span><\/span><\/span><\/span><\/span><\/p>\n<\/td>\n<td style=\"border-bottom:1.0000pt solid #fcfcfc; background:#e4e4e4; width:213.0500pt; padding:0.0000pt 5.4000pt 0.0000pt 5.4000pt ; border-left:none; border-right:1.0000pt solid #fcfcfc; border-top:none\" valign=\"top\" width=\"284\">\n<p style=\"margin: 0pt 0pt 0.0001pt; text-align: center;\"><span style=\"color:#000000;\"><span style=\"font-size:10.5pt\"><span style=\"font-family:Calibri\"><span style=\"font-size:10.5000pt\"><span style=\"font-family:\u5b8b\u4f53\"><font face=\"Calibri\">0.07<\/font><\/span><\/span><\/span><\/span><\/span><\/p>\n<\/td>\n<\/tr>\n<tr>\n<td style=\"border-bottom:1.0000pt solid #fcfcfc; background:#f2f2f2; width:213.0500pt; padding:0.0000pt 5.4000pt 0.0000pt 5.4000pt ; border-left:1.0000pt solid #fcfcfc; border-right:1.0000pt solid #fcfcfc; border-top:none\" valign=\"top\" width=\"284\">\n<p style=\"margin: 0pt 0pt 0.0001pt; text-align: center;\"><span style=\"color:#000000;\"><span style=\"font-size:10.5pt\"><span style=\"font-family:Calibri\"><span style=\"font-size:10.5000pt\"><span style=\"font-family:Calibri\">Allongement \u00e0 la rupture<\/span><\/span><\/span><\/span><\/span><\/p>\n<\/td>\n<td style=\"border-bottom:1.0000pt solid #fcfcfc; background:#f2f2f2; width:213.0500pt; padding:0.0000pt 5.4000pt 0.0000pt 5.4000pt ; border-left:none; border-right:1.0000pt solid #fcfcfc; border-top:none\" valign=\"top\" width=\"284\">\n<p style=\"margin: 0pt 0pt 0.0001pt; text-align: center;\"><span style=\"color:#000000;\"><span style=\"font-size:10.5pt\"><span style=\"font-family:Calibri\"><span style=\"font-size:10.5000pt\"><span style=\"font-family:\u5b8b\u4f53\"><font face=\"Calibri\">25<\/font><\/span><\/span><\/span><\/span><\/span><\/p>\n<\/td>\n<\/tr>\n<tr>\n<td style=\"border-bottom:1.0000pt solid #fcfcfc; background:#e4e4e4; width:213.0500pt; padding:0.0000pt 5.4000pt 0.0000pt 5.4000pt ; border-left:1.0000pt solid #fcfcfc; border-right:1.0000pt solid #fcfcfc; border-top:none\" valign=\"top\" width=\"284\">\n<p style=\"margin: 0pt 0pt 0.0001pt; text-align: center;\"><span style=\"color:#000000;\"><span style=\"font-size:10.5pt\"><span style=\"font-family:Calibri\"><span style=\"font-size:10.5000pt\"><span style=\"font-family:Calibri\">R\u00e9sistivit\u00e9 volumique<\/span><\/span><\/span><\/span><\/span><\/p>\n<\/td>\n<td style=\"border-bottom:1.0000pt solid #fcfcfc; background:#e4e4e4; width:213.0500pt; padding:0.0000pt 5.4000pt 0.0000pt 5.4000pt ; border-left:none; border-right:1.0000pt solid #fcfcfc; border-top:none\" valign=\"top\" width=\"284\">\n<p style=\"margin: 0pt 0pt 0.0001pt; text-align: center;\"><span style=\"color:#000000;\"><span style=\"font-size:10.5pt\"><span style=\"font-family:Calibri\"><span style=\"font-size:10.5000pt\"><span style=\"font-family:\u5b8b\u4f53\"><font face=\"Calibri\">1<\/font><font face=\"\u5b8b\u4f53\">\u00d7<\/font><font face=\"Calibri\">10<\/font><\/span><\/span><sup><span style=\"font-size:10.5000pt\"><span style=\"font-family:\u5b8b\u4f53\"><span style=\"vertical-align:super\"><font face=\"Calibri\">13<\/font><\/span><\/span><\/span><\/sup><\/span><\/span><\/span><\/p>\n<\/td>\n<\/tr>\n<tr>\n<td style=\"border-bottom:1.0000pt solid #fcfcfc; background:#ffffff; width:213.0500pt; padding:0.0000pt 5.4000pt 0.0000pt 5.4000pt ; border-left:1.0000pt solid #fcfcfc; border-right:1.0000pt solid #fcfcfc; border-top:none\" valign=\"top\" width=\"284\">\n<p style=\"margin: 0pt 0pt 0.0001pt; text-align: center;\"><span style=\"color:#000000;\"><span style=\"font-size:10.5pt\"><span style=\"font-family:Calibri\"><span style=\"font-size:10.5000pt\"><span style=\"font-family:Calibri\">Permittivit\u00e9 relative<\/span><\/span><\/span><\/span><\/span><\/p>\n<\/td>\n<td style=\"border-bottom:1.0000pt solid #fcfcfc; background:#ffffff; width:213.0500pt; padding:0.0000pt 5.4000pt 0.0000pt 5.4000pt ; border-left:none; border-right:1.0000pt solid #fcfcfc; border-top:none\" valign=\"top\" width=\"284\">\n<p style=\"margin: 0pt 0pt 0.0001pt; text-align: center;\"><span style=\"color:#000000;\"><span style=\"font-size:10.5pt\"><span style=\"font-family:Calibri\"><span style=\"font-size:10.5000pt\"><span style=\"font-family:\u5b8b\u4f53\"><font face=\"Calibri\">5.0<\/font><\/span><\/span><\/span><\/span><\/span><\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3 style=\"margin-top: 13pt; margin-bottom: 13pt; text-align: justify; margin-left: 40px;\"><span class=\"ez-toc-section\" id=\"22_Effect_of_thickness_on_compression_deformation_of_the_heat-conducting_gasket\"><\/span><span style=\"font-size:22px;\"><span style=\"color:#000000;\"><span style=\"line-height:172%\"><span style=\"font-family:Calibri\"><b><span style=\"font-family:'Open Sans'\">2.2 Effet de l'\u00e9paisseur sur la d\u00e9formation en compression du joint thermique<\/span><\/b><\/span><\/span><\/span><\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p style=\"margin:0pt 0pt 0.0001pt; text-align:justify\"><span style=\"color:#000000;\"><span style=\"font-size:10.5pt\"><span style=\"font-family:Calibri\"><span style=\"font-size:12.0000pt\"><span style=\"font-family:'Open Sans'\">La d\u00e9formation en compression est \u00e9galement un indicateur important des tampons thermiques hautes performances. Plus la d\u00e9formation en compression est grande, meilleure est la flexibilit\u00e9 du produit, plus il est facile de s'adapter \u00e9troitement, et plus la r\u00e9sistance thermique d'interface est faible, permettant ainsi une meilleure conductivit\u00e9 thermique. Les produits d'\u00e9paisseurs diff\u00e9rentes ont des d\u00e9formations en compression diff\u00e9rentes. En g\u00e9n\u00e9ral, le taux de compression de la d\u00e9formation en compression est de 0,5 mm\/min. L'effet de l'\u00e9paisseur sur la d\u00e9formation en compression des tampons thermiques est illustr\u00e9 \u00e0 la <\/span><\/span><span style=\"font-size:12.0000pt\"><span style=\"font-family:\u5b8b\u4f53\"><font face=\"Open Sans\">Figure<\/font><\/span><\/span><span style=\"font-size:12.0000pt\"><span style=\"font-family:'Open Sans'\">&nbsp;1.<\/span><\/span><\/span><\/span><\/span><\/p>\n<p align=\"center\" style=\"text-align:center; margin:0pt 0pt 0.0001pt\"><a id=\"2.3\" name=\"2.3\"><\/a><img decoding=\"async\" src=\"\/media\/145\/Figure1%20Influence%20of%20Thickness%20on%20Compression%20Deformation%20of%20Thermal%20Gasket.png\"><\/p>\n<p align=\"center\" style=\"text-align:center; margin:0pt 0pt 0.0001pt\"><span style=\"color:#000000;\"><span style=\"font-size:10.5pt\"><span style=\"font-family:Calibri\"><span style=\"font-size:11.0000pt\"><span style=\"font-family:\u5b8b\u4f53\"><font face=\"Open Sans\">Figure 1 : <\/font><\/span><\/span><span style=\"font-size:11.0000pt\"><span style=\"font-family:'Open Sans'\">Influence de l'\u00e9paisseur sur la d\u00e9formation en compression du joint thermique<\/span><\/span><\/span><\/span><\/span><\/p>\n<p style=\"margin:0pt 0pt 0.0001pt; text-align:justify\">&nbsp;<\/p>\n<p style=\"margin:0pt 0pt 0.0001pt; text-align:justify\"><span style=\"color:#000000;\"><span style=\"font-size:10.5pt\"><span style=\"font-family:Calibri\"><span style=\"font-size:12.0000pt\"><span style=\"font-family:'Open Sans'\">On peut voir d'apr\u00e8s la Figure 1 que, pour une m\u00eame pression, plus l'\u00e9paisseur est grande, plus le taux de compression est \u00e9lev\u00e9. En g\u00e9n\u00e9ral, la d\u00e9formation en compression des produits \u00e9pais doit atteindre plus de 60% (g\u00e9n\u00e9ralement inf\u00e9rieure \u00e0 0,69 MPa), et les produits peuvent \u00eatre pr\u00e9s\u00e9lectionn\u00e9s en fonction de la courbe de d\u00e9formation en compression.<\/span><\/span><\/span><\/span><\/span><\/p>\n<h3 style=\"margin-top: 13pt; margin-bottom: 13pt; text-align: justify; margin-left: 40px;\"><span class=\"ez-toc-section\" id=\"23_Effect_of_thickness_on_the_thermal_resistance_of_heat-conducting_gasket\"><\/span><span style=\"font-size:22px;\"><span style=\"color:#000000;\"><span style=\"line-height:172%\"><span style=\"font-family:Calibri\"><b><span style=\"font-family:'Open Sans'\">2.3 Effet de l'\u00e9paisseur sur la r\u00e9sistance thermique du joint thermique<\/span><\/b><\/span><\/span><\/span><\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p style=\"margin:0pt 0pt 0.0001pt; text-align:justify\"><span style=\"color:#000000;\"><span style=\"font-size:10.5pt\"><span style=\"font-family:Calibri\"><span style=\"font-size:12.0000pt\"><span style=\"font-family:'Open Sans'\">L'une des caract\u00e9ristiques d'un joint thermoconducteur haute performance est sa faible r\u00e9sistance thermique. Plus la r\u00e9sistance thermique est faible, meilleur est l'effet thermoconducteur. La r\u00e9sistance thermique des produits d'\u00e9paisseurs diff\u00e9rentes varie. Voir la Fig. 2 pour l'influence de l'\u00e9paisseur sur la r\u00e9sistance thermique du joint thermoconducteur.<\/span><\/span><\/span><\/span><\/span><\/p>\n<p align=\"center\" style=\"text-align:center; margin:0pt 0pt 0.0001pt\"><a id=\"2.4\" name=\"2.4\"><\/a><img decoding=\"async\" src=\"\/media\/145\/Figure2%20Effect%20of%20thickness%20on%20the%20thermal%20resistance%20of%20heat-conducting%20gasket.png\"><\/p>\n<p align=\"center\" style=\"text-align:center; margin:0pt 0pt 0.0001pt\"><span style=\"color:#000000;\"><span style=\"font-size:10.5pt\"><span style=\"font-family:Calibri\"><span style=\"font-size:11.0000pt\"><span style=\"font-family:\u5b8b\u4f53\"><font face=\"Open Sans\">Figure 2 Effet de l'\u00e9paisseur sur la r\u00e9sistance thermique du joint thermoconducteur<\/font><\/span><\/span><\/span><\/span><\/span><\/p>\n<p style=\"margin:0pt 0pt 0.0001pt; text-align:justify\">&nbsp;<\/p>\n<p style=\"margin:0pt 0pt 0.0001pt; text-align:justify\"><span style=\"color:#000000;\"><span style=\"font-size:10.5pt\"><span style=\"font-family:Calibri\"><span style=\"font-size:12.0000pt\"><span style=\"font-family:'Open Sans'\">On peut voir d'apr\u00e8s la Figure 2 que plus l'\u00e9paisseur du produit est grande, plus sa r\u00e9sistance thermique est \u00e9lev\u00e9e. La r\u00e9sistance thermique des produits de m\u00eame \u00e9paisseur diminue lin\u00e9airement avec l'augmentation de la pression. L'\u00e9paisseur du produit est d\u00e9termin\u00e9e par la conception de l'\u00e9l\u00e9ment thermoconducteur. La largeur de l'intervalle de l'unit\u00e9 de conception thermoconductrice correspond \u00e0 l'\u00e9paisseur du produit.<\/span><\/span><\/span><\/span><\/span><\/p>\n<h3 style=\"margin-top: 13pt; margin-bottom: 13pt; text-align: justify; margin-left: 40px;\"><span class=\"ez-toc-section\" id=\"24_Effect_of_instantaneous_and_long-term_pressure_on_the_compressive_deformation_of_thermally_conductive_gaskets\"><\/span><span style=\"font-size:22px;\"><span style=\"color:#000000;\"><span style=\"line-height:172%\"><span style=\"font-family:Calibri\"><b><span style=\"font-family:'Open Sans'\">2.4 Effet d'une pression instantan\u00e9e et \u00e0 long terme sur la d\u00e9formation en compression des joints thermoconducteurs<\/span><\/b><\/span><\/span><\/span><\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p style=\"margin:0pt 0pt 0.0001pt; text-align:justify\"><span style=\"color:#000000;\"><span style=\"font-size:10.5pt\"><span style=\"font-family:Calibri\"><span style=\"font-size:12.0000pt\"><span style=\"font-family:'Open Sans'\">Les r\u00e9sultats des tests de pression instantan\u00e9e et \u00e0 long terme sur le joint thermoconducteur sont pr\u00e9sent\u00e9s dans le Tableau 2<\/span><\/span><span style=\"font-size:12.0000pt\"><span style=\"font-family:\u5b8b\u4f53\"><font face=\"Open Sans\">.<\/font><\/span><\/span><\/span><\/span><\/span><\/p>\n<p style=\"margin:0pt 0pt 0.0001pt; text-align:justify\">&nbsp;<\/p>\n<table class=\"MsoTableGrid\" style=\"border-collapse:collapse; margin-left:6.7500pt; margin-right:6.7500pt; border:1.0000pt solid #fcfcfc; font-family:&quot;Times New Roman&quot;; font-size:10pt\">\n<tbody>\n<tr>\n<td colspan=\"3\" style=\"border-bottom:1.0000pt solid #fcfcfc; background:#5a5a5a; width:426.1000pt; padding:0.0000pt 5.4000pt 0.0000pt 5.4000pt ; border-left:1.0000pt solid #fcfcfc; border-right:1.0000pt solid #fcfcfc; border-top:1.0000pt solid #fcfcfc\" valign=\"top\" width=\"568\">\n<p align=\"center\" style=\"text-align:center; margin:0pt 0pt 0.0001pt\"><span style=\"color:#ffffff;\"><span style=\"font-size:10.5pt\"><span style=\"font-family:Calibri\"><span style=\"font-size:11.0000pt\"><span style=\"font-family:'Times New Roman'\">Tableau 2<\/span><\/span><span style=\"font-size:11.0000pt\"><span style=\"font-family:\u5b8b\u4f53\"><font face=\"Times New Roman\">:<\/font><\/span><\/span><span style=\"font-size:11.0000pt\"><span style=\"font-family:'Times New Roman'\">&nbsp;Effet de la pression instantan\u00e9e et \u00e0 long terme sur la d\u00e9formation en compression des joints thermoconducteurs<\/span><\/span><\/span><\/span><\/span><\/p>\n<\/td>\n<\/tr>\n<tr>\n<td style=\"border-bottom:1.0000pt solid #fcfcfc; background:#e4e4e4; width:148.0000pt; padding:0.0000pt 5.4000pt 0.0000pt 5.4000pt ; border-left:1.0000pt solid #fcfcfc; border-right:1.0000pt solid #fcfcfc; border-top:none\" valign=\"top\" width=\"197\">\n<p align=\"center\" style=\"text-align:center; margin:0pt 0pt 0.0001pt\"><span style=\"color:#000000;\"><span style=\"font-size:10.5pt\"><span style=\"font-family:Calibri\"><span style=\"font-size:11.0000pt\"><span style=\"font-family:'Times New Roman'\">D\u00e9formation en compression<\/span><\/span><span style=\"font-size:11.0000pt\"><span style=\"font-family:'Times New Roman'\">\/%<\/span><\/span><\/span><\/span><\/span><\/p>\n<\/td>\n<td style=\"border-bottom:1.0000pt solid #fcfcfc; background:#e4e4e4; width:136.0000pt; padding:0.0000pt 5.4000pt 0.0000pt 5.4000pt ; border-left:none; border-right:1.0000pt solid #fcfcfc; border-top:1.0000pt solid #fcfcfc\" valign=\"top\" width=\"181\">\n<p align=\"center\" style=\"text-align:center; margin:0pt 0pt 0.0001pt\"><span style=\"color:#000000;\"><span style=\"font-size:10.5pt\"><span style=\"font-family:Calibri\"><span style=\"font-size:11.0000pt\"><span style=\"font-family:'Times New Roman'\">D\u00e9formation transitoire<\/span><\/span><span style=\"font-size:11.0000pt\"><span style=\"font-family:'Times New Roman'\">\/MPa<\/span><\/span><\/span><\/span><\/span><\/p>\n<\/td>\n<td style=\"border-bottom:1.0000pt solid #fcfcfc; background:#e4e4e4; width:142.1000pt; padding:0.0000pt 5.4000pt 0.0000pt 5.4000pt ; border-left:none; border-right:1.0000pt solid #fcfcfc; border-top:1.0000pt solid #fcfcfc\" valign=\"top\" width=\"189\">\n<p align=\"center\" style=\"text-align:center; margin:0pt 0pt 0.0001pt\"><span style=\"color:#000000;\"><span style=\"font-size:10.5pt\"><span style=\"font-family:Calibri\"><span style=\"font-size:11.0000pt\"><span style=\"font-family:'Times New Roman'\">Contrainte chronique<\/span><\/span><span style=\"font-size:11.0000pt\"><span style=\"font-family:'Times New Roman'\">\/MPa<\/span><\/span><\/span><\/span><\/span><\/p>\n<\/td>\n<\/tr>\n<tr>\n<td style=\"border-bottom:1.0000pt solid #fcfcfc; background:#f2f2f2; width:148.0000pt; padding:0.0000pt 5.4000pt 0.0000pt 5.4000pt ; border-left:1.0000pt solid #fcfcfc; border-right:1.0000pt solid #fcfcfc; border-top:none\" valign=\"top\" width=\"197\">\n<p align=\"center\" style=\"text-align:center; margin:0pt 0pt 0.0001pt\"><span style=\"color:#000000;\"><span style=\"font-size:10.5pt\"><span style=\"font-family:Calibri\"><span style=\"font-size:11.0000pt\"><span style=\"font-family:'Times New Roman'\">10<\/span><\/span><\/span><\/span><\/span><\/p>\n<\/td>\n<td style=\"border-bottom:1.0000pt solid #fcfcfc; background:#f2f2f2; width:136.0000pt; padding:0.0000pt 5.4000pt 0.0000pt 5.4000pt ; border-left:none; border-right:1.0000pt solid #fcfcfc; border-top:none\" valign=\"top\" width=\"181\">\n<p align=\"center\" style=\"text-align:center; margin:0pt 0pt 0.0001pt\"><span style=\"color:#000000;\"><span style=\"font-size:10.5pt\"><span style=\"font-family:Calibri\"><span style=\"font-size:11.0000pt\"><span style=\"font-family:'Times New Roman'\">0.06<\/span><\/span><\/span><\/span><\/span><\/p>\n<\/td>\n<td style=\"border-bottom:1.0000pt solid #fcfcfc; background:#f2f2f2; width:142.1000pt; padding:0.0000pt 5.4000pt 0.0000pt 5.4000pt ; border-left:none; border-right:1.0000pt solid #fcfcfc; border-top:none\" valign=\"top\" width=\"189\">\n<p align=\"center\" style=\"text-align:center; margin:0pt 0pt 0.0001pt\"><span style=\"color:#000000;\"><span style=\"font-size:10.5pt\"><span style=\"font-family:Calibri\"><span style=\"font-size:11.0000pt\"><span style=\"font-family:'Times New Roman'\">0<\/span><\/span><\/span><\/span><\/span><\/p>\n<\/td>\n<\/tr>\n<tr>\n<td style=\"border-bottom:1.0000pt solid #fcfcfc; background:#e4e4e4; width:148.0000pt; padding:0.0000pt 5.4000pt 0.0000pt 5.4000pt ; border-left:1.0000pt solid #fcfcfc; border-right:1.0000pt solid #fcfcfc; border-top:none\" valign=\"top\" width=\"197\">\n<p align=\"center\" style=\"text-align:center; margin:0pt 0pt 0.0001pt\"><span style=\"color:#000000;\"><span style=\"font-size:10.5pt\"><span style=\"font-family:Calibri\"><span style=\"font-size:11.0000pt\"><span style=\"font-family:'Times New Roman'\">20<\/span><\/span><\/span><\/span><\/span><\/p>\n<\/td>\n<td style=\"border-bottom:1.0000pt solid #fcfcfc; background:#e4e4e4; width:136.0000pt; padding:0.0000pt 5.4000pt 0.0000pt 5.4000pt ; border-left:none; border-right:1.0000pt solid #fcfcfc; border-top:none\" valign=\"top\" width=\"181\">\n<p align=\"center\" style=\"text-align:center; margin:0pt 0pt 0.0001pt\"><span style=\"color:#000000;\"><span style=\"font-size:10.5pt\"><span style=\"font-family:Calibri\"><span style=\"font-size:11.0000pt\"><span style=\"font-family:'Times New Roman'\">0.14<\/span><\/span><\/span><\/span><\/span><\/p>\n<\/td>\n<td style=\"border-bottom:1.0000pt solid #fcfcfc; background:#e4e4e4; width:142.1000pt; padding:0.0000pt 5.4000pt 0.0000pt 5.4000pt ; border-left:none; border-right:1.0000pt solid #fcfcfc; border-top:none\" valign=\"top\" width=\"189\">\n<p align=\"center\" style=\"text-align:center; margin:0pt 0pt 0.0001pt\"><span style=\"color:#000000;\"><span style=\"font-size:10.5pt\"><span style=\"font-family:Calibri\"><span style=\"font-size:11.0000pt\"><span style=\"font-family:'Times New Roman'\">0.01<\/span><\/span><\/span><\/span><\/span><\/p>\n<\/td>\n<\/tr>\n<tr>\n<td style=\"border-bottom:1.0000pt solid #fcfcfc; background:#f2f2f2; width:148.0000pt; padding:0.0000pt 5.4000pt 0.0000pt 5.4000pt ; border-left:1.0000pt solid #fcfcfc; border-right:1.0000pt solid #fcfcfc; border-top:none\" valign=\"top\" width=\"197\">\n<p align=\"center\" style=\"text-align:center; margin:0pt 0pt 0.0001pt\"><span style=\"color:#000000;\"><span style=\"font-size:10.5pt\"><span style=\"font-family:Calibri\"><span style=\"font-size:11.0000pt\"><span style=\"font-family:'Times New Roman'\">30<\/span><\/span><\/span><\/span><\/span><\/p>\n<\/td>\n<td style=\"border-bottom:1.0000pt solid #fcfcfc; background:#f2f2f2; width:136.0000pt; padding:0.0000pt 5.4000pt 0.0000pt 5.4000pt ; border-left:none; border-right:1.0000pt solid #fcfcfc; border-top:none\" valign=\"top\" width=\"181\">\n<p align=\"center\" style=\"text-align:center; margin:0pt 0pt 0.0001pt\"><span style=\"color:#000000;\"><span style=\"font-size:10.5pt\"><span style=\"font-family:Calibri\"><span style=\"font-size:11.0000pt\"><span style=\"font-family:'Times New Roman'\">0.26<\/span><\/span><\/span><\/span><\/span><\/p>\n<\/td>\n<td style=\"border-bottom:1.0000pt solid #fcfcfc; background:#f2f2f2; width:142.1000pt; padding:0.0000pt 5.4000pt 0.0000pt 5.4000pt ; border-left:none; border-right:1.0000pt solid #fcfcfc; border-top:none\" valign=\"top\" width=\"189\">\n<p align=\"center\" style=\"text-align:center; margin:0pt 0pt 0.0001pt\"><span style=\"color:#000000;\"><span style=\"font-size:10.5pt\"><span style=\"font-family:Calibri\"><span style=\"font-size:11.0000pt\"><span style=\"font-family:'Times New Roman'\">0.04<\/span><\/span><\/span><\/span><\/span><\/p>\n<\/td>\n<\/tr>\n<tr>\n<td style=\"border-bottom:1.0000pt solid #fcfcfc; background:#e4e4e4; width:148.0000pt; padding:0.0000pt 5.4000pt 0.0000pt 5.4000pt ; border-left:1.0000pt solid #fcfcfc; border-right:1.0000pt solid #fcfcfc; border-top:none\" valign=\"top\" width=\"197\">\n<p align=\"center\" style=\"text-align:center; margin:0pt 0pt 0.0001pt\"><span style=\"color:#000000;\"><span style=\"font-size:10.5pt\"><span style=\"font-family:Calibri\"><span style=\"font-size:11.0000pt\"><span style=\"font-family:'Times New Roman'\"><a id=\"2.5\" name=\"2.5\"><\/a>40<\/span><\/span><\/span><\/span><\/span><\/p>\n<\/td>\n<td style=\"border-bottom:1.0000pt solid #fcfcfc; background:#e4e4e4; width:136.0000pt; padding:0.0000pt 5.4000pt 0.0000pt 5.4000pt ; border-left:none; border-right:1.0000pt solid #fcfcfc; border-top:none\" valign=\"top\" width=\"181\">\n<p align=\"center\" style=\"text-align:center; margin:0pt 0pt 0.0001pt\"><span style=\"color:#000000;\"><span style=\"font-size:10.5pt\"><span style=\"font-family:Calibri\"><span style=\"font-size:11.0000pt\"><span style=\"font-family:'Times New Roman'\">0.40<\/span><\/span><\/span><\/span><\/span><\/p>\n<\/td>\n<td style=\"border-bottom:1.0000pt solid #fcfcfc; background:#e4e4e4; width:142.1000pt; padding:0.0000pt 5.4000pt 0.0000pt 5.4000pt ; border-left:none; border-right:1.0000pt solid #fcfcfc; border-top:none\" valign=\"top\" width=\"189\">\n<p align=\"center\" style=\"text-align:center; margin:0pt 0pt 0.0001pt\"><span style=\"color:#000000;\"><span style=\"font-size:10.5pt\"><span style=\"font-family:Calibri\"><span style=\"font-size:11.0000pt\"><span style=\"font-family:'Times New Roman'\">0.07<\/span><\/span><\/span><\/span><\/span><\/p>\n<\/td>\n<\/tr>\n<tr>\n<td style=\"border-bottom:1.0000pt solid #fcfcfc; background:#f2f2f2; width:148.0000pt; padding:0.0000pt 5.4000pt 0.0000pt 5.4000pt ; border-left:1.0000pt solid #fcfcfc; border-right:1.0000pt solid #fcfcfc; border-top:none\" valign=\"top\" width=\"197\">\n<p align=\"center\" style=\"text-align:center; margin:0pt 0pt 0.0001pt\"><span style=\"color:#000000;\"><span style=\"font-size:10.5pt\"><span style=\"font-family:Calibri\"><span style=\"font-size:11.0000pt\"><span style=\"font-family:'Times New Roman'\">50<\/span><\/span><\/span><\/span><\/span><\/p>\n<\/td>\n<td style=\"border-bottom:1.0000pt solid #fcfcfc; background:#f2f2f2; width:136.0000pt; padding:0.0000pt 5.4000pt 0.0000pt 5.4000pt ; border-left:none; border-right:1.0000pt solid #fcfcfc; border-top:none\" valign=\"top\" width=\"181\">\n<p align=\"center\" style=\"text-align:center; margin:0pt 0pt 0.0001pt\"><span style=\"color:#000000;\"><span style=\"font-size:10.5pt\"><span style=\"font-family:Calibri\"><span style=\"font-size:11.0000pt\"><span style=\"font-family:'Times New Roman'\">0.51<\/span><\/span><\/span><\/span><\/span><\/p>\n<\/td>\n<td style=\"border-bottom:1.0000pt solid #fcfcfc; background:#f2f2f2; width:142.1000pt; padding:0.0000pt 5.4000pt 0.0000pt 5.4000pt ; border-left:none; border-right:1.0000pt solid #fcfcfc; border-top:none\" valign=\"top\" width=\"189\">\n<p align=\"center\" style=\"text-align:center; margin:0pt 0pt 0.0001pt\"><span style=\"color:#000000;\"><span style=\"font-size:10.5pt\"><span style=\"font-family:Calibri\"><span style=\"font-size:11.0000pt\"><span style=\"font-family:'Times New Roman'\">0.09<\/span><\/span><\/span><\/span><\/span><\/p>\n<\/td>\n<\/tr>\n<tr>\n<td style=\"border-bottom:1.0000pt solid #fcfcfc; background:#ffffff; width:148.0000pt; padding:0.0000pt 5.4000pt 0.0000pt 5.4000pt ; border-left:1.0000pt solid #fcfcfc; border-right:1.0000pt solid #fcfcfc; border-top:none\" valign=\"top\" width=\"197\">\n<p align=\"center\" style=\"text-align:center; margin:0pt 0pt 0.0001pt\"><span style=\"color:#000000;\"><span style=\"font-size:10.5pt\"><span style=\"font-family:Calibri\"><span style=\"font-size:11.0000pt\"><span style=\"font-family:'Times New Roman'\">60<\/span><\/span><\/span><\/span><\/span><\/p>\n<\/td>\n<td style=\"border-bottom:1.0000pt solid #fcfcfc; background:#ffffff; width:136.0000pt; padding:0.0000pt 5.4000pt 0.0000pt 5.4000pt ; border-left:none; border-right:1.0000pt solid #fcfcfc; border-top:none\" valign=\"top\" width=\"181\">\n<p align=\"center\" style=\"text-align:center; margin:0pt 0pt 0.0001pt\"><span style=\"color:#000000;\"><span style=\"font-size:10.5pt\"><span style=\"font-family:Calibri\"><span style=\"font-size:11.0000pt\"><span style=\"font-family:'Times New Roman'\">0.68<\/span><\/span><\/span><\/span><\/span><\/p>\n<\/td>\n<td style=\"border-bottom:1.0000pt solid #fcfcfc; background:#ffffff; width:142.1000pt; padding:0.0000pt 5.4000pt 0.0000pt 5.4000pt ; border-left:none; border-right:1.0000pt solid #fcfcfc; border-top:none\" valign=\"top\" width=\"189\">\n<p align=\"center\" style=\"text-align:center; margin:0pt 0pt 0.0001pt\"><span style=\"color:#000000;\"><span style=\"font-size:10.5pt\"><span style=\"font-family:Calibri\"><span style=\"font-size:11.0000pt\"><span style=\"font-family:'Times New Roman'\">0.11<\/span><\/span><\/span><\/span><\/span><\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p style=\"margin: 0pt 0pt 0.0001pt 40px; text-align: justify;\"><span style=\"color:#000000;\"><span style=\"font-size:10.5pt\"><span style=\"font-family:Calibri\"><span style=\"font-size:11.0000pt\"><span style=\"font-family:'Open Sans'\">Note : 1) Vitesse de test 25,4 mm\/min, \u00c9paisseur 2 mm<\/span><\/span><\/span><\/span><\/span><\/p>\n<p style=\"margin:0pt 0pt 0.0001pt; text-align:justify\">&nbsp;<\/p>\n<p style=\"margin:0pt 0pt 0.0001pt; text-align:justify\"><span style=\"color:#000000;\"><span style=\"font-size:10.5pt\"><span style=\"font-family:Calibri\"><span style=\"font-size:12.0000pt\"><span style=\"font-family:'Open Sans'\">Le tableau 2 montre qu'\u00e0 un taux de compression de 25,4 mm\/min, une pression instantan\u00e9e de 0,259 MPa est n\u00e9cessaire pour obtenir une d\u00e9formation par compression de 30 % et une pression \u00e0 long terme de 0,037 MPa est n\u00e9cessaire pour maintenir une d\u00e9formation par compression de 30 %. Les pressions instantan\u00e9e et \u00e0 long terme sont proches de l'application et sont tr\u00e8s faciles \u00e0 utiliser.<\/span><\/span><\/span><\/span><\/span><\/p>\n<h3 style=\"margin-top: 13pt; margin-bottom: 13pt; text-align: justify; margin-left: 40px;\"><span class=\"ez-toc-section\" id=\"25_The_effect_of_peel_force_on_the_operational_performance_of_thermally_conductive_gaskets\"><\/span><span style=\"font-size:22px;\"><span style=\"color:#000000;\"><span style=\"line-height:172%\"><span style=\"font-family:Calibri\"><b><span style=\"font-family:'Open Sans'\">2.5 Effet de la force de pelage sur la performance op\u00e9rationnelle des joints thermoconducteurs<\/span><\/b><\/span><\/span><\/span><\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p style=\"margin:0pt 0pt 0.0001pt; text-align:justify\"><span style=\"color:#000000;\"><span style=\"font-size:10.5pt\"><span style=\"font-family:Calibri\"><span style=\"font-size:12.0000pt\"><span style=\"font-family:'Open Sans'\">Avec une forte addition de charges thermiquement conductrices, la conductivit\u00e9 thermique du joint thermique est \u00e9lev\u00e9e, mais le produit devient moins r\u00e9sistant en lui-m\u00eame, et dans les cas graves, il tache \u00e9galement les composants \u00e9lectroniques et le produit pr\u00e9sente des d\u00e9fauts environnementaux. Par cons\u00e9quent, la conception de joints thermiques haute performance doit prendre en compte la relation entre la force de pelage et l'op\u00e9rabilit\u00e9 du produit. D'une mani\u00e8re g\u00e9n\u00e9rale, les produits fins n\u00e9cessitent une meilleure maniabilit\u00e9 que les produits \u00e9pais. M\u00eame si le joint ne contamine pas le film de d\u00e9collement, un joint fin avec une force de pelage \u00e9lev\u00e9e soul\u00e8vera et d\u00e9placera le joint lors du retrait du <a id=\"2.6\" name=\"2.6\"><\/a>film, affectant son utilisation. L'effet de la force de pelage sur l'op\u00e9rabilit\u00e9 des entretoises thermoconductrices est pr\u00e9sent\u00e9 dans le tableau 3.<\/span><\/span><\/span><\/span><\/span><\/p>\n<p style=\"margin:0pt 0pt 0.0001pt; text-align:justify\">&nbsp;<\/p>\n<table class=\"MsoTableGrid\" style=\"border-collapse:collapse; border:1.0000pt solid #fcfcfc; font-family:&quot;Times New Roman&quot;; font-size:10pt\">\n<tbody>\n<tr>\n<td colspan=\"2\" style=\"border-bottom:1.0000pt solid #fcfcfc; background:#5a5a5a; width:426.1000pt; padding:0.0000pt 5.4000pt 0.0000pt 5.4000pt ; border-left:1.0000pt solid #fcfcfc; border-right:1.0000pt solid #fcfcfc; border-top:1.0000pt solid #fcfcfc\" valign=\"top\" width=\"568\">\n<p align=\"center\" style=\"text-align:center; margin:0pt 0pt 0.0001pt\"><span style=\"color:#ffffff;\"><span style=\"font-size:10.5pt\"><span style=\"font-family:Calibri\"><span style=\"font-size:11.0000pt\"><span style=\"font-family:\u5b8b\u4f53\"><font face=\"Times New Roman\">Tableau 3 : <\/font><\/span><\/span><span style=\"font-size:11.0000pt\"><span style=\"font-family:'Times New Roman'\">Influence de la force de d\u00e9collement sur l'op\u00e9rabilit\u00e9 du joint thermoconducteur<\/span><\/span><\/span><\/span><\/span><\/p>\n<\/td>\n<\/tr>\n<tr>\n<td style=\"border-bottom:1.0000pt solid #fcfcfc; background:#e4e4e4; width:213.0500pt; padding:0.0000pt 5.4000pt 0.0000pt 5.4000pt ; border-left:1.0000pt solid #fcfcfc; border-right:1.0000pt solid #fcfcfc; border-top:none\" valign=\"top\" width=\"284\">\n<p align=\"center\" style=\"text-align:center; margin:0pt 0pt 0.0001pt\"><span style=\"color:#000000;\"><span style=\"font-size:10.5pt\"><span style=\"font-family:Calibri\"><span style=\"font-size:11.0000pt\"><span style=\"font-family:'Times New Roman'\">Force de pelage<\/span><\/span><\/span><\/span><\/span><\/p>\n<\/td>\n<td style=\"border-bottom:1.0000pt solid #fcfcfc; background:#e4e4e4; width:213.0500pt; padding:0.0000pt 5.4000pt 0.0000pt 5.4000pt ; border-left:none; border-right:1.0000pt solid #fcfcfc; border-top:1.0000pt solid #fcfcfc\" valign=\"top\" width=\"284\">\n<p align=\"center\" style=\"text-align:center; margin:0pt 0pt 0.0001pt\"><span style=\"color:#000000;\"><span style=\"font-size:10.5pt\"><span style=\"font-family:Calibri\"><span style=\"font-size:11.0000pt\"><span style=\"font-family:'Times New Roman'\">Operability<\/span><\/span><\/span><\/span><\/span><\/p>\n<\/td>\n<\/tr>\n<tr>\n<td style=\"border-bottom:1.0000pt solid #fcfcfc; background:#f2f2f2; width:213.0500pt; padding:0.0000pt 5.4000pt 0.0000pt 5.4000pt ; border-left:1.0000pt solid #fcfcfc; border-right:1.0000pt solid #fcfcfc; border-top:none\" valign=\"top\" width=\"284\">\n<p align=\"center\" style=\"text-align:center; margin:0pt 0pt 0.0001pt\"><span style=\"color:#000000;\"><span style=\"font-size:10.5pt\"><span style=\"font-family:Calibri\"><span style=\"font-size:11.0000pt\"><span style=\"font-family:'Times New Roman'\">20<\/span><\/span><\/span><\/span><\/span><\/p>\n<\/td>\n<td style=\"border-bottom:1.0000pt solid #fcfcfc; background:#f2f2f2; width:213.0500pt; padding:0.0000pt 5.4000pt 0.0000pt 5.4000pt ; border-left:none; border-right:1.0000pt solid #fcfcfc; border-top:none\" valign=\"top\" width=\"284\">\n<p align=\"center\" style=\"text-align:center; margin:0pt 0pt 0.0001pt\"><span style=\"color:#000000;\"><span style=\"font-size:10.5pt\"><span style=\"font-family:Calibri\"><span style=\"font-size:11.0000pt\"><span style=\"font-family:'Times New Roman'\">T\u00e2chage des films de d\u00e9collement<\/span><\/span><\/span><\/span><\/span><\/p>\n<\/td>\n<\/tr>\n<tr>\n<td style=\"border-bottom:1.0000pt solid #fcfcfc; background:#e4e4e4; width:213.0500pt; padding:0.0000pt 5.4000pt 0.0000pt 5.4000pt ; border-left:1.0000pt solid #fcfcfc; border-right:1.0000pt solid #fcfcfc; border-top:none\" valign=\"top\" width=\"284\">\n<p align=\"center\" style=\"text-align:center; margin:0pt 0pt 0.0001pt\"><span style=\"color:#000000;\"><span style=\"font-size:10.5pt\"><span style=\"font-family:Calibri\"><span style=\"font-size:11.0000pt\"><span style=\"font-family:'Times New Roman'\">12<\/span><\/span><\/span><\/span><\/span><\/p>\n<\/td>\n<td style=\"border-bottom:1.0000pt solid #fcfcfc; background:#e4e4e4; width:213.0500pt; padding:0.0000pt 5.4000pt 0.0000pt 5.4000pt ; border-left:none; border-right:1.0000pt solid #fcfcfc; border-top:none\" valign=\"top\" width=\"284\">\n<p align=\"center\" style=\"text-align:center; margin:0pt 0pt 0.0001pt\"><span style=\"color:#000000;\"><span style=\"font-size:10.5pt\"><span style=\"font-family:Calibri\"><span style=\"font-size:11.0000pt\"><span style=\"font-family:'Times New Roman'\">Film de d\u00e9collement non tachant, facile \u00e0 d\u00e9placer<\/span><\/span><\/span><\/span><\/span><\/p>\n<\/td>\n<\/tr>\n<tr>\n<td style=\"border-bottom:1.0000pt solid #fcfcfc; background:#ffffff; width:213.0500pt; padding:0.0000pt 5.4000pt 0.0000pt 5.4000pt ; border-left:1.0000pt solid #fcfcfc; border-right:1.0000pt solid #fcfcfc; border-top:none\" valign=\"top\" width=\"284\">\n<p align=\"center\" style=\"text-align:center; margin:0pt 0pt 0.0001pt\"><span style=\"color:#000000;\"><span style=\"font-size:10.5pt\"><span style=\"font-family:Calibri\"><span style=\"font-size:11.0000pt\"><span style=\"font-family:'Times New Roman'\">8<\/span><\/span><\/span><\/span><\/span><\/p>\n<\/td>\n<td style=\"border-bottom:1.0000pt solid #fcfcfc; background:#ffffff; width:213.0500pt; padding:0.0000pt 5.4000pt 0.0000pt 5.4000pt ; border-left:none; border-right:1.0000pt solid #fcfcfc; border-top:none\" valign=\"top\" width=\"284\">\n<p align=\"center\" style=\"text-align:center; margin:0pt 0pt 0.0001pt\"><span style=\"color:#000000;\"><span style=\"font-size:10.5pt\"><span style=\"font-family:Calibri\"><span style=\"font-size:11.0000pt\"><span style=\"font-family:'Times New Roman'\">Film de d\u00e9collement non tachant, sans d\u00e9placement<\/span><\/span><\/span><\/span><\/span><\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>&nbsp;<\/p>\n<p style=\"margin:0pt 0pt 0.0001pt; text-align:justify\"><span style=\"color:#000000;\"><span style=\"font-size:10.5pt\"><span style=\"font-family:Calibri\"><span style=\"font-size:12.0000pt\"><span style=\"font-family:'Open Sans'\">Comme on peut le voir dans le tableau 3, pour un joint thermoconducteur de 0,8 mm, l'op\u00e9ration est mauvaise lorsque la force de pelage est sup\u00e9rieure \u00e0 12 g\/25 mm, et optimale lorsque la force de pelage est de 8 g\/25 mm. Comme plus le produit est \u00e9pais, plus il est facile de retirer le film de d\u00e9collement, seuls les produits fins sont discut\u00e9s dans cette exp\u00e9rience.<\/span><\/span><\/span><\/span><\/span><\/p>\n<h3 style=\"margin-top: 13pt; margin-bottom: 13pt; text-align: justify; margin-left: 40px;\"><span class=\"ez-toc-section\" id=\"26_Reliability_of_thermal_pads\"><\/span><span style=\"font-size:22px;\"><span style=\"color:#000000;\"><span style=\"line-height:172%\"><span style=\"font-family:Calibri\"><b><span style=\"font-family:'Open Sans'\">2.6 Fiabilit\u00e9 des coussins thermiques<\/span><\/b><\/span><\/span><\/span><\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p style=\"margin:0pt 0pt 0.0001pt; text-align:justify\"><span style=\"color:#000000;\"><span style=\"font-size:10.5pt\"><span style=\"font-family:Calibri\"><span style=\"font-size:12.0000pt\"><span style=\"font-family:'Open Sans'\">La mise \u00e0 niveau d'un nouveau produit n\u00e9cessite g\u00e9n\u00e9ralement un test comparatif de fiabilit\u00e9. Les tests de fiabilit\u00e9 incluent le test de vieillissement \u00e0 haute temp\u00e9rature, le test de vieillissement par choc thermique et le test de vieillissement en ambiance humide. Dans le processus de mise \u00e0 niveau du produit, le client exige que la conductivit\u00e9 thermique du tampon thermique ne soit pas inf\u00e9rieure \u00e0 celle de l'\u00e9chantillon de r\u00e9f\u00e9rence original apr\u00e8s un vieillissement de 440 heures. Les r\u00e9sultats des tests de fiabilit\u00e9 sont pr\u00e9sent\u00e9s de la figure 3 \u00e0 la figure 5.<\/span><\/span><\/span><\/span><\/span><\/p>\n<p align=\"center\" style=\"text-align:center; margin:0pt 0pt 0.0001pt\"><img decoding=\"async\" src=\"\/media\/145\/Figure3%20High%20temperature%20aging%20of%20heat%20conducting%20gasket.png\"><\/p>\n<p align=\"center\" style=\"text-align:center; margin:0pt 0pt 0.0001pt\"><span style=\"color:#000000;\"><span style=\"font-size:10.5pt\"><span style=\"font-family:Calibri\"><span style=\"font-size:11.0000pt\"><span style=\"font-family:\u5b8b\u4f53\"><font face=\"Open Sans\">Figure<\/font><\/span><\/span>&nbsp;<span style=\"font-size:11.0000pt\"><span style=\"font-family:\u5b8b\u4f53\"><font face=\"Open Sans\">3<\/font><\/span><\/span><span style=\"font-size:11.0000pt\"><span style=\"font-family:\u5b8b\u4f53\"><font face=\"Open Sans\">:<\/font><\/span><\/span><span style=\"font-size:11.0000pt\"><span style=\"font-family:\u5b8b\u4f53\">&nbsp;<font face=\"Open Sans\">Vieillissement \u00e0 haute temp\u00e9rature du joint thermoconducteur<\/font><\/span><\/span><\/span><\/span><\/span><\/p>\n<p align=\"center\" style=\"text-align:center; margin:0pt 0pt 0.0001pt\">&nbsp;<\/p>\n<p align=\"center\" style=\"text-align:center; margin:0pt 0pt 0.0001pt\"><img decoding=\"async\" src=\"\/media\/145\/Figure4%20Thermal%20shock%20aging%20of%20heat%20conducting%20gasket.png\"><\/p>\n<p align=\"center\" style=\"text-align:center; margin:0pt 0pt 0.0001pt\"><span style=\"color:#000000;\"><span style=\"font-size:10.5pt\"><span style=\"font-family:Calibri\"><span style=\"font-size:11.0000pt\"><span style=\"font-family:\u5b8b\u4f53\"><font face=\"Open Sans\">Figure<\/font><\/span><\/span>&nbsp;<span style=\"font-size:11.0000pt\"><span style=\"font-family:\u5b8b\u4f53\"><font face=\"Open Sans\">4<\/font><\/span><\/span><span style=\"font-size:11.0000pt\"><span style=\"font-family:\u5b8b\u4f53\"><font face=\"Open Sans\">: <\/font><\/span><\/span><span style=\"font-size:11.0000pt\"><span style=\"font-family:\u5b8b\u4f53\"><font face=\"Open Sans\">Vieillissement par choc thermique du joint thermoconducteur<\/font><\/span><\/span><\/span><\/span><\/span><\/p>\n<p align=\"center\" style=\"text-align:center; margin:0pt 0pt 0.0001pt\">&nbsp;<\/p>\n<p align=\"center\" style=\"text-align:center; margin:0pt 0pt 0.0001pt\"><img decoding=\"async\" src=\"\/media\/145\/Figure5%20Heat%20and%20moisture%20aging%20of%20thermal%20conductive%20gaskets.png\"><\/p>\n<p align=\"center\" style=\"text-align:center; margin:0pt 0pt 0.0001pt\"><span style=\"color:#000000;\"><span style=\"font-size:10.5pt\"><span style=\"font-family:Calibri\"><span style=\"font-size:11.0000pt\"><span style=\"font-family:\u5b8b\u4f53\"><font face=\"Open Sans\">Figure<\/font><\/span><\/span>&nbsp;<span style=\"font-size:11.0000pt\"><span style=\"font-family:\u5b8b\u4f53\"><font face=\"Open Sans\">5<\/font><\/span><\/span><span style=\"font-size:11.0000pt\"><span style=\"font-family:\u5b8b\u4f53\"><font face=\"Open Sans\">:<\/font><\/span><\/span><span style=\"font-size:11.0000pt\"><span style=\"font-family:\u5b8b\u4f53\">&nbsp;<font face=\"Open Sans\">Vieillissement en ambiance chaude et humide des joints thermoconducteurs<\/font><\/span><\/span><\/span><\/span><\/span><\/p>\n<p style=\"margin:0pt 0pt 0.0001pt; text-align:justify\">&nbsp;<\/p>\n<p style=\"margin:0pt 0pt 0.0001pt; text-align:justify\"><span style=\"color:#000000;\"><span style=\"font-size:10.5pt\"><span style=\"font-family:Calibri\"><span style=\"font-size:12.0000pt\"><span style=\"font-family:'Open Sans'\"><a id=\"3\" name=\"3\"><\/a>On peut voir des figures 3 \u00e0 5 que la r\u00e9sistance thermique du tampon thermique est inf\u00e9rieure \u00e0 celle de l'\u00e9chantillon de r\u00e9f\u00e9rence pendant le processus de vieillissement \u00e0 150 \u00b0C pendant 440 h ; la r\u00e9sistance thermique du tampon thermique est inf\u00e9rieure \u00e0 celle de l'\u00e9chantillon de r\u00e9f\u00e9rence pendant le processus de vieillissement par choc thermique de 440 h ; le processus de vieillissement en ambiance humide de 440 h, la r\u00e9sistance thermique du tampon thermique est inf\u00e9rieure \u00e0 celle de l'\u00e9chantillon de r\u00e9f\u00e9rence.<\/span><\/span><\/span><\/span><\/span><\/p>\n<p style=\"margin:0pt 0pt 0.0001pt; text-align:justify\">&nbsp;<\/p>\n<p style=\"margin:0pt 0pt 0.0001pt; text-align:justify\"><span style=\"color:#000000;\"><span style=\"font-size:10.5pt\"><span style=\"font-family:Calibri\"><span style=\"font-size:12.0000pt\"><span style=\"font-family:'Open Sans'\">In\u00a0summary, the upgraded reliability of thermal pads with the same thickness is better than that of the original reference samples.<\/span><\/span><\/span><\/span><\/span><\/p>\n<h2 style=\"margin-top:13pt; margin-bottom:13pt; text-align:justify\"><span class=\"ez-toc-section\" id=\"3_Conclusion\"><\/span><span style=\"font-size:28px;\"><span style=\"color:#000000;\"><span style=\"line-height:172%\"><span style=\"font-family:Arial\"><b><span style=\"font-family:'Open Sans'\">3. Conclusion<\/span><\/b><\/span><\/span><\/span><\/span><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p style=\"margin:0pt 0pt 0.0001pt; text-align:justify\"><span style=\"color:#000000;\"><span style=\"font-size:10.5pt\"><span style=\"font-family:Calibri\"><span style=\"font-size:12.0000pt\"><span style=\"font-family:'Open Sans'\"><a id=\"XJY\" name=\"XJY\"><\/a>Un tampon thermique haute performance est pr\u00e9par\u00e9 en utilisant de l'huile de silicone r\u00e9active comme mat\u00e9riau de base et de l'alumine et du nitrure d'aluminium comme charge thermoconductrice. La formule pr\u00e9f\u00e9r\u00e9e est : 80 g d'huile de silicone vinylique \u00e0 faible viscosit\u00e9, 8 g d'huile de silicone vinylique \u00e0 haute viscosit\u00e9, 6 g d'huile de silicone hydrog\u00e9n\u00e9e, 5 g de r\u00e9sine de silicone modifi\u00e9e, 1,0 g de catalyseur et 0,2 g d'inhibiteur sont ajout\u00e9s \u00e0 la cuve d'agitation et m\u00e9lang\u00e9s pendant 0,5 h, puis mis sous vide pour \u00e9liminer les bulles d'air ; ensuite, ajouter 55 g de nitrure d'aluminium, agiter pendant 0,5 h, puis ajouter 445 g d'alumine, m\u00e9langer uniform\u00e9ment, puis mettre sous vide pour \u00e9liminer les bulles d'air ; enfin, ajouter 402 g d'alumine sph\u00e9rique, agiter pendant 0,5 h et mettre sous vide pour \u00e9liminer les bulles d'air. La conductivit\u00e9 thermique du produit pr\u00e9par\u00e9 avec cette formule atteint 4,0 W\/(m\u00b7K), il est facile \u00e0 manipuler et \u00e0 utiliser, et poss\u00e8de une bonne fiabilit\u00e9, ce qui peut r\u00e9pondre aux exigences des clients pour des joints thermoconducteurs haute performance.<\/span><\/span><\/span><\/span><\/span><\/p>\n<h2 style=\"margin-top:13pt; margin-bottom:13pt; text-align:justify\"><span class=\"ez-toc-section\" id=\"XJY_Silicones_%E2%80%93_First_choice_raw_material_supplier_of_silicone_thermally_conductive_materials\"><\/span><span style=\"font-size:28px;\"><span style=\"color:#000000;\"><span style=\"line-height:172%\"><span style=\"font-family:Arial\"><b><span style=\"font-family:'Open Sans'\">Silicone XJY<\/span><\/b><b><span style=\"font-family:'Open Sans'\">s <\/span><\/b><b><span style=\"font-family:'Open Sans'\">-<\/span><\/b><b>&nbsp;<\/b><b><span style=\"font-family:'Open Sans'\">Premier fournisseur de mati\u00e8res premi\u00e8res pour mat\u00e9riaux thermoconducteurs en silicone<\/span><\/b><\/span><\/span><\/span><\/span><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<table border=\"1\" cellpadding=\"1\" cellspacing=\"1\" style=\"width: 100%;\">\n<tbody>\n<tr>\n<td><span style=\"color:#000000;\"><span style=\"font-size:10.5pt\"><span style=\"font-family:Calibri\"><span style=\"font-size:12.0000pt\"><span style=\"font-family:'Open Sans'\">XJY Silicones, one of China\u2019s leading <a href=\"https:\/\/www.xjysilicone.com\/fr\/methyl-mq-silicone-resin.html\/\">R\u00e9sine MQ en silicone<\/a> et <a href=\"https:\/\/www.xjysilicone.com\/fr\/vmq.html\/\">VMQ<\/a> Fabricants de silicones thermoconducteurs, poss\u00e9dant plus de 30 ans d'exp\u00e9rience en R&amp;D et fabrication, et b\u00e9n\u00e9ficiant de l'assistance technique de plus de 15 brevets connexes dans l'industrie du silicone. Ils peuvent \u00e9galement personnaliser des produits en silicone thermoconducteur rentables selon les exigences de vos appareils \u00e9lectroniques.<\/span><\/span><\/span><\/span><\/span><\/td>\n<td><img decoding=\"async\" src=\"\/media\/145\/XJY%20SILICONES.jpg\" style=\"height: 140px; width: 250px;\"><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>&nbsp;<\/p>\n<\/p><\/div>\n<\/article><\/div>","protected":false},"excerpt":{"rendered":"<p>Avec le d\u00e9veloppement de produits \u00e9lectroniques vers la miniaturisation, la multifonctionnalit\u00e9 et les hautes performances, la technologie d'int\u00e9gration syst\u00e8me 3D \u00e0 haute densit\u00e9 a vu le jour. L'int\u00e9gration syst\u00e8me tridimensionnelle permet une efficacit\u00e9 d'assemblage \u00e9lev\u00e9e, une vitesse de transmission de signal rapide et une meilleure fiabilit\u00e9 du syst\u00e8me. Malgr\u00e9 ces avantages, en raison de l'\u00e9norme consommation \u00e9nerg\u00e9tique, elle entra\u00eene \u00e9galement une augmentation de la chaleur par unit\u00e9...<\/p>","protected":false},"author":12,"featured_media":27245,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[610],"tags":[],"class_list":["post-27244","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-electronic"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.xjysilicone.com\/fr\/wp-json\/wp\/v2\/posts\/27244","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.xjysilicone.com\/fr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.xjysilicone.com\/fr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.xjysilicone.com\/fr\/wp-json\/wp\/v2\/users\/12"}],"replies":[{"embeddable":true,"href":"https:\/\/www.xjysilicone.com\/fr\/wp-json\/wp\/v2\/comments?post=27244"}],"version-history":[{"count":0,"href":"https:\/\/www.xjysilicone.com\/fr\/wp-json\/wp\/v2\/posts\/27244\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.xjysilicone.com\/fr\/wp-json\/wp\/v2\/media\/27245"}],"wp:attachment":[{"href":"https:\/\/www.xjysilicone.com\/fr\/wp-json\/wp\/v2\/media?parent=27244"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.xjysilicone.com\/fr\/wp-json\/wp\/v2\/categories?post=27244"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.xjysilicone.com\/fr\/wp-json\/wp\/v2\/tags?post=27244"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}