China's earliest development of silicone glass resin and high temperature mica binder is Chenguang Chemical Research Institute of the Ministry of Chemical Industry Huo Changshun, Chen Rufeng, etc. At the end of the last century in the 1970s successfully developed with a methyl triethoxy silane in the presence of acid catalyst hydrolysis polycondensation reaction system of CTS-103 silicone resin, commonly known as "silicone glass resin". The resin was used for the treatment of advanced paper, coating protection of metal surface, and bonding of mica sheet or mica powder. In 1980, Fang Sanhua, Xue Zhiqing and Li Yansheng in Shanghai Resin Factory respectively adopted solid cation exchange resin as temporary acid catalyst. A methyl triethoxy silane; Transparent and wear-resistant silicone resins (SAR 1 and SAR 2) were synthesized by using monomethyl triethoxy silane as the main component and a small amount of dimethyl diethoxy silane as the main component. Because the resin has no residual inorganic acid, so the product storage performance is very stable, no cementation was found after one year. Due to the introduction of a small amount of two functional raw materials, SAR-2 products are hard with soft, wider application range. Can be widely used in glass, plastic, metal and other materials; It is especially suitable for the protection of transparent plastics such as polycarbonate, polystyrene and polyvinyl chloride, as well as the moisture-proof insulation protective coating for electronic components, and soon forms a large-scale production.
Qi Hongqiu, Li Yan, Cui Zuomin, Chenguang Chemical Research Institute, 1980 ~ 1982; From 1981 to 1983, Xu Zhihong and Xue Zhiqing from Shanghai Resin Factory used monomethyltrichlorosilane as the main raw material to prepare organosilicon high-temperature resistant mica binder. The product brands are MR-30 and SAR-8. In addition to the general silicone products with high temperature resistance, electrical insulation, moisture-proof, waterproof and other properties; It also has high bonding force and flame retardant properties. It is mainly used in the manufacture of high temperature resistant powdered mica plate, tube insulation, high temperature resistant powdered mica plate for support, mica plate for welding machine turn insulation and so on. Various heat-resistant pigments can also be added as smokeless anticorrosive coatings, and can also be used as non-combustible molding composites composed of glass fiber composite laminates and silica or resin for ceramic molding. China has rich mica powder resources, can be developed into a series of high temperature resistant insulation mica plate products.
Shanghai Resin Factory SAR-8, SAR-9 is adopted with its own process characteristics: organic silicon monomer hydrolysis, alcoholysis, concentration, condensation. SAR-8, SAR-9 began production in 1983, and production has reached nearly a thousand tons. The main raw material of this product is a methyl trichlorosilane, so whether the production of MR-30 or SAR-8, SAR-9 can make the use of a methyl trichlorosilane value greatly improved.