Methyl silicone oil is generally a non-toxic, colorless, odorless, non-volatile liquid. It is insoluble in water, methanol, and ethylene glycol. It is miscible with benzene, dimethyl ether, carbon tetrachloride, etc., and is slightly soluble in Acetone, dioxane, ethanol and butanol. Because the intermolecular force of methyl silicone oil is small, the molecular chain is spiral-shaped, and the organic groups can rotate freely, it has excellent spreading properties, lubricity, high and low temperature resistance, weather resistance, radiation resistance, high flash point, With the characteristics of low surface tension and physiological inertness, it is widely used in daily chemical, machinery, electrical, textile, coating, pharmaceutical and food industries.
Good electrical insulation: Silicone oil has good dielectric properties, and its electrical properties change very little with changes in temperature and cycle number. The dielectric constant decreases with increasing temperature, but the change is small. The power factor of silicone oil is low, increases with temperature, but changes with frequency without rules. Volume resistivity decreases as temperature increases.
Small viscosity-temperature coefficient: The viscosity of silicone oil is low and changes little with temperature, which is related to the spiral structure of silicone oil molecules. Silicone oil is a type of oil with the best viscosity and temperature characteristics among various liquid lubricants. This characteristic of silicone oil is very meaningful for damping equipment.
Good heat resistance: Since the main chain of the silicone oil molecule is composed of -Si-O-Si- bonds, it has a similar structure to inorganic polymers and its bond energy is very high, so it has excellent heat resistance.
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