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The difference between room temperature vulcanized silicone rubber and high temperature vulcanized silicone rubber.


Room temperature vulcanized silicone rubber.

It is a straight-chain high molecular weight polysiloxane, molecular weight is generally above 150,000, and its structural form is similar to that of silicone oil. According to the different organic groups linked on the silicon atom, silicone rubber has dimethyl silicone rubber, methyl vinyl silicone rubber, methyl phenyl silicone rubber, fluorosilicone rubber, nitrile silicone rubber, ethyl silicone rubber ethyl benzene support silicone rubber and many other varieties.

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Room temperature vulcanized silicone rubber (RTV) carries one or two functional groups at each end of the molecular chain (and sometimes in the middle), which can react under certain conditions (moisture in the air or an appropriate catalyst) to form a high molecular weight cross-linked structure.

High temperature vulcanized silicone rubber (hot vulcanized silicone rubber).

Vulcanized silicone rubber is a class of silicone products with large production and very wide application. In the hot vulcanized silicone rubber raw rubber add reinforcing filler, vulcanizing agent and other additives, by mixing that is to become a compounding rubber, can be molded, extrusion and other general rubber processing methods into a variety of silicone rubber products. Silicone rubber has excellent high and low temperature resistance, can be used in the range of -60 ~ 250 ℃ for a long time, and also has excellent electrical insulation properties, ozone resistance, weather aging, water repellent, moisture-proof, and has a good physiological inertia. Therefore, it is widely used in aerospace, aviation, electronics, electrical, construction, machinery, metallurgy, automotive, instrumentation, textile, chemical, light industry, food, medicine and health sectors. Especially in the field of electronics and electricity.Silicone Rubber Foot Pad

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The difference between room temperature vulcanized silicone rubber and high temperature vulcanized silicone rubber.

1, the material is different. Room temperature vulcanized silicone rubber is a straight-chain high molecular weight polysiloxane, high temperature vulcanized silicone rubber is silicone rubber after adding vulcanizing agent, etc., by heating the rubber molecules to produce cross-linking reaction, become a highly elastic vulcanized rubber.

3, the use of different.

3, the vulcanization mechanism and vulcanization temperature is different. rtv low temperature vulcanization, and generally two-component and one-component. High temperature vulcanization is generally a double two or five vulcanization system.

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