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properties of methyl silicone oil

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Silicone oil usually refers to polysiloxane products that remain liquid at room temperature, and silicone oil and its derivatives account for about 40% of silicone products. Hydrogen-containing silicone oil is one of the important varieties. Its molecular formula is Me3SiO(MeHSiO) (Me2SiO) SiMe3. According to the different values of m and n, it can be divided into full hydrogen-containing silicone oil (m≠0, n=0) and partial hydrogen-containing silicone oil. (m≠O, ≠0). Due to the introduction of silicon hydrogen groups into the main chain, it can be cross-linked to form a film at low temperature, and a waterproof layer can be formed on the surface of the material. It can also undergo hydrosilylation reaction with compounds containing unsaturated bonds, and introduce different groups into hydrogen-containing silicone oil to obtain products with different uses, mainly used as silicone surfactants, paint leveling agents, polyurethane foam leveling agents Foaming agent, pesticide spreading agent, etc.

At present, the method of producing hydrogen-containing silicone oil is mainly the hydrolysis of organochlorosilane. How to control the hydrolysis rate is a key step in the quality of the product. Therefore, the main improvement direction for preparing mu-quality hydrogen-containing silicone oil in the future is to use a new process to control the hydrolysis rate. Pay attention to the purity of hydrogen-containing monomers to avoid cross-linking to form flocs and affect product quality. At the same time, the currently used catalyst is mainly concentrated sulfuric acid, which is low in price but seriously corrodes the container and is not conducive to environmental protection. Although solid catalysts have higher industrial application value High but expensive, so the development of new low-cost and high-efficiency catalysts is also a very important research direction. With the continuous development of these new improved methods and catalysts, it will inevitably play a role in promoting the hydrogen-containing silicone oil industry, so that the application field of hydrogen-containing silicone oil and its modified products will continue to expand.

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