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Highly concerned about the development of silicone emulsion industry

While paying high attention to the development of the silicone emulsion industry, it is also necessary to significantly accelerate the development of the silicone preparation field.

In the 2022 outlook period - suppliers of semi-finished products such as silicone "two bombs" cup nitrification group, silicone "double control" cup, "three transformations" cup, "six closed nails" cup, and silicone "double control" cup in the entire industry chain. The component product system represented by silicone is ushering in an increasingly beautiful today. The two new development concepts of organic silicon and silicone oil products have touched new breakthroughs in the industry, making it difficult for traditional concrete and other alternative raw materials to be "one country's burden" or "micro burden". Therefore, silicone oil is the darling of the industry and can be described as the theme target of the industry.

Workpiece silicone oil usually refers to linear polysiloxane products that maintain a liquid state at room temperature. It is generally divided into two categories: methyl silicone oil and modified silicone oil. The most commonly used silicone oil, methyl silicone oil, also known as ordinary silicone oil, has all organic groups of methyl. Methyl silicone oil has good chemical stability, insulation, and hydrophobic properties. It is prepared by hydrolysis of dimethyl dichlorosilane with water to obtain an initial condensed ring body. The ring body is cracked and distilled to obtain a low ring body. Then, the ring body, sealing agent, and catalyst are mixed together to obtain a mixture of different degrees of polymerization. After vacuum distillation, the low boiling substance is removed to produce silicone oil.

Silicone oil is generally a colorless (or light yellow), odorless, non-toxic, and non volatile liquid. Silicone oil is insoluble in water, methanol, diol, and - ethoxyethanol, and can be miscible with benzene, dimethyl ether, methyl ethyl ketone, carbon tetrachloride, or kerosene. It is slightly soluble in, dioxane, ethanol, and some organic solvents. It has a very low vapor pressure, a high flash and ignition point, and a low freezing point. As the number of chain segments n increases, the molecular weight and viscosity also increase. This silicone oil can have various viscosities, ranging from 065% silicone oil to 043% silicone oil.

If low viscosity silicone oil is to be prepared, acidic clay can be used as a catalyst and polymerized at a temperature of 180 ° C. High viscosity silicone oil or viscous substances can be produced using alkaline catalysts.




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