Silicone oil is generally a colorless (or light yellow), odorless, non-toxic, non-volatile liquid. Silicone oil is insoluble in water, methanol, glycol and -ethoxyethanol, miscible with benzene, dimethyl ether, methyl ethyl ketone, carbon tetrachloride or kerosene, slightly soluble in acetone, dioxane, ethanol and alcohol . It has a small vapor pressure, high flash point and ignition point, and low freezing point. the

In terms of usage, there are damping silicone oil, diffusion pump silicone oil, hydraulic oil, insulating oil, heat transfer oil, brake oil, etc. Silicone oil has excellent heat resistance, electrical insulation, weather resistance, hydrophobicity, physiological inertness and small surface tension, in addition to low viscosity-temperature coefficient, high compression resistance) some varieties also have radiation resistance performance silicone oil.


Silicone oil is a polyorganosiloxane with chain structure of different degrees of polymerization. The most commonly used silicone oil is methyl silicone oil.

Silicone emulsion (a form of silicone oil) mainly includes silicone oil fabric softening agent; silicone oil emulsion type defoamer: it is the most widely used and the largest amount of defoamer among silicone defoamers.

With the difference of the number of segments n, the molecular weight increases and the viscosity also increases, so the silicone oil can have various viscosities. According to the chemical structure, silicone oil can be divided into methyl silicone oil, ethyl silicone oil, phenyl silicone oil, methyl hydrogen-containing silicone oil, methyl phenyl silicone oil, methyl chlorophenyl silicone oil, methyl ethoxy silicone oil, methyl trifluoropropane Base silicone oil, methyl vinyl silicone oil, methyl hydroxy silicone oil, ethyl hydrogen silicone oil, hydroxyl hydrogen silicone oil, cyanide silicone oil, etc.; in terms of application, there are damping silicone oil, diffusion pump silicone oil, hydraulic oil, insulating oil, Heat transfer oil, brake fluid, etc. Silicone oil has excellent heat resistance, electrical insulation, weather resistance, hydrophobicity, physiological inertness and small surface tension, in addition to low viscosity-temperature coefficient, high compression resistance) some varieties also have radiation resistance performance.


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