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Silicone oil detailed introduction

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Silicone oil is a raw material with many special properties, such as low temperature viscosity coefficient, high and low temperature resistance, oxidation resistance, high flash point, low volatility, good insulation, low surface tension, no corrosion to metal, non-toxic, etc. Due to these characteristics, silicone oil is used in many aspects with excellent effects. Among various silicone oils, methyl silicone oil is the most widely used and the most important variety of silicone oil.



Silicone oil usually refers to linear polysiloxane products that remain in 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 methyl groups. Methyl silicone oil has good chemical stability, insulation, and good hydrophobic properties. It is prepared by hydrolyzing dimethyldichlorosilane with water to obtain a primary polycondensation ring body, and the ring body is cracked and distilled to obtain a low ring body. Then, the ring body, capping agent, and catalyst are put together to obtain a mixture of various polymerization degrees. Silicone oil can be obtained by removing low-boiling substances through reduced pressure distillation.

Uses: There are various viscosities. It has high heat resistance, water resistance, electrical insulation and low surface tension. It is often used as high-grade lubricating oil, shockproof oil, insulating oil, defoaming agent, mold release agent, polishing agent, isolation agent and vacuum diffusion pump oil, etc.; emulsion can be used for car tire polishing, dashboard polishing, etc. Methyl silicone oil is the most commonly used. After emulsification or modification, it is used for smooth and soft finishing of textiles. Emulsified silicone oil is also added to shampoo of daily care products to improve the lubricity of hair. In addition, there are ethyl silicone oil, methylphenyl silicone oil, nitrile silicone oil, polyether modified silicone oil (water-soluble silicone oil), etc.


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