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Silicone emulsion type defoamer

May 16, 2018

Silicone oil

Silicone oil is a polyorganosiloxane with different degree of polymerization and chain structure. The most commonly used silicone oil is methyl silicone oil. Silicone oil is generally colorless (or light yellow), tasteless, non-toxic, non-volatile liquid. Silicone oil insoluble in water, methanol, diol and - ethoxy ethanol, with benzene, dimethyl ether, methyl ethyl ketone, carbon tetrachloride or kerosene miscible, slightly soluble in acetone, dioxane, ethanol and alcohol . It has a very low vapor pressure, a high flash point and a flash point, and a lower freezing point. With the number of segments n, molecular weight increases, viscosity also increased, solid silicone oil can have a variety of different viscosities. Silicone oil by the chemical structure to be divided into methyl silicone oil, ethyl silicone oil, phenyl silicone oil, methyl hydrogen silicone oil, methyl phenyl silicone oil, methyl chlorophenyl silicone oil, methyl ethoxy silicone oil, Methyl silicone oil, methyl hydroxy silicone oil, ethyl hydrogen silicone oil, hydroxy hydrogen silicone oil, cyanide-containing silicone oil, and the like;

From the use of points, there are damping silicone oil, diffusion pump silicone oil, hydraulic oil, insulating oil, heat transfer oil, brake oil. Silicone oil has excellent heat resistance, electrical insulation, weatherability, hydrophobicity, physiological inertia and a smaller surface tension, in addition to a low viscosity-temperature coefficient, high resistance to compression) and some varieties also have radiation-resistant Performance.

Silicone emulsion (a form of silicone oil) mainly silicone oil fabric softener; silicone emulsion defoamer: silicone defoamer is the most widely used, the largest amount of a defoamer.