Dimethyl silicone oil. The main chain of the molecule is composed of silicon oxygen atoms, and the side group connected to silicon is methyl. The viscosity range at 25 ℃ is 10-200 000mm2/s. Relative density d4200.93~0.975. The refractive index nD201.390~1.410. Colorless, transparent, non-toxic, and odorless oily substance. It has excellent electrical insulation performance and heat resistance, high flash point, low solidification point, and can be used for a long time in the temperature range of -50~+200 ℃. Low viscosity temperature coefficient, high compression rate, low surface tension, good hydrophobicity and moisture resistance, and lower specific heat capacity and thermal conductivity. It can be prepared by the dimerization reaction of dimethylcyclosiloxane with hexamethyldisiloxane in the presence of a catalyst. Used as a release agent in the plastic and rubber industries; Used as a defoamer in the biochemical, pharmaceutical, and food industries; Used as shockproof damping materials in the mechanical and instrument industries.

What are the uses of high-temperature rubber and mixed rubber?

Mainly used for waterproof and moisture-proof sealing in the fields of electronics, high-temperature wires and cables, and aviation. Silicone products, silicone sealing rings, silicone tubes, silicone strips, silicone rollers, silicone sheets, silicone wheels, silicone baking plates, gilded silicone plates, various buttons such as telephones, mobile phones, computers, TV high-pressure molds, diving goggles, silicone bracelets, silicone basins, clothing signs, silicone kitchen utensils, silicone medical supplies, food grade mold manufacturing such as cake molds, baby pacifiers, and some advanced transparent model designs.

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