May 17, 2016
Fluid is a different degree of polymerization of the polyorganosiloxane chain structure. The most common silicone is simethicone.Silicone oil is generally colorless (or yellow), odorless, non-toxic, non-volatile liquid.
Silicone oil, insoluble in water, methanol, glycol and - ethoxyethanol, with benzene, dimethyl ether, methyl ethyl ketone, carbon tetrachloride or kerosene immiscible, slightly soluble in acetone, dioxane, ethanol and the alcohol .
It has a very small vapor pressure, high flash point and ignition point, low freezing point. As the number of segments n different values, molecular weight increases, the viscosity increased, this solid silicone can have a variety of different viscosities.
Silicone oil to be divided according to the chemical structure of methyl silicone oil, ethyl silicone oil, phenyl silicone oil, methyl hydrogen silicone oil, methylphenyl silicone oil, methyl chlorophenyl silicone oil, silicone-methylethoxy, propoxy trifluoroacetamide silicone oil, methyl vinyl silicone oil, methyl silicone oil hydroxy ethyl hydrogen silicone oil, hydroxy silicone oil, silicone oils containing cyanide;
From the use of points, then the damping silicone oil, diffusion pump oil, hydraulic oil, insulating oil, heat transfer oil, brake oil.
Silicone oil has excellent heat resistance, electrical insulation, weather resistance, hydrophobicity, physical inertia and smaller surface tension, in addition to having a low viscosity-temperature coefficient, high resistance to compression) and some varieties also have resistance to radiation performance.
Silicone emulsion (a form of silicone oil) are mainly silicone fabric softening agent; silicone emulsion defoamer: silicone defoamers are used in the most extensive, the largest amount of a defoamer.