Jiang Xi Xin Jia Yi New Materials Co., Ltd.

VMQ Silicone Chemical Resistance

VMQ silicone rubber is abbreviated as vinyl silicone rubber. It is a copolymer of dimethyl siloxane and a small amount of vinyl siloxane. The vinyl content is generally from 0.1% to 0.3% (molar fraction). The introduction of a small amount of unsaturated vinyl gives it a vulcanization process and finished product properties. In particular, heat aging resistance and high temperature compression deformation are greatly improved. The content of the methylvinylsiloxane unit has a great influence on the vulcanization and the heat resistance of the vulcanizate. If the content is too small, the effect is not significant. If the content is too large( up to 0.5% molar fraction), the heat resistance of the vulcanizate will lower. Molecular formula of VMQ silicone: C2H3 [Si(CH3)2O]n [Si(CH3)(C2H3)O]mC2H3

Structure of VMQ silicone:

VMQ silicone rubber

Characteristics of VMQ silicone

1. It is resistant to high and low temperature and can work for a long time at -50~250 °C.
2. It is moisture-proof, electrically insulating, resistant to arcing and corona.
3. It is resistant to aging and ozone
4. It has a non-sticky surface and water repellency.
5. It has small compression deformation and is resistant to saturated steam. Precautions for VMQ silicone In case of fire or high heat, it is flammable. Keep away from fire and heat. Avoid contact with strong acids, bases, lead metal and their compounds.

Use of VMQ silicone

Methyl vinyl silicone rubber is mainly used in the production of various silicone rubber compounds, such as insulator rubber, wire and cable extrusion glue. In the application, one model can be used alone or in combination of two or more models to meet the different requirements of the rubber compound.

Packaging and transportation of VMQ silicone

1. The product is packed in cardboard boxes with clean and dry plastic bags lined with a net content of 25kg per box.
2. Transportation: When transporting the product, it should be protected from rain and sun exposure, and transported as non-dangerous goods. Lightly load and unload during handling to prevent damage to the packaging.
3. Storage: The product should be stored in a ventilated and dry warehouse to prevent direct sunlight. This product has a storage period of 3 years from the date of production. If it exceeds the storage period, it can be re-sampled and tested according to the standard. If it meets the standard requirements, it can still be used.
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