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Physicochemical properties of polydimethylsiloxane

Sep 21, 2017


Polydimethylsiloxane chemical state Dimethyl silicone oil, colorless or light yellow liquid, tasteless, high transparency, with heat resistance, cold resistance, viscosity changes with temperature, water resistance, surface tension is small, with thermal conductivity Sex, thermal conductivity of 0.134-0.159W / M * K, translucent light transmittance of 100%, dimethyl silicone oil non-toxic and tasteless, with physiological inertia, good chemical stability. Electrical insulation and weather resistance, good hydrophobicity, and has a high shear resistance, can be in -50 ℃ ~ 200 ℃ long-term use. It has excellent physical properties and can be used for insulation, damping, shock absorption, defoaming, lubrication and polishing. It is widely used for insulation lubrication, shockproof, anti-dust, dielectric liquid and heat carrier. As well as for defoaming, release agent, paint and chemical additives.
Polydimethylsiloxane can be used as an emulsion matrix with lanolin, stearyl alcohol, cetyl alcohol, glyceryl monostearate, Tween, spice and other surfactants. In this product by adding film-forming agents such as PVP, PVA and cellulose derivatives, etc., can enhance its protective properties. The release of drugs with penetrating skin properties is faster than dolphin, lanolin and vaseline.

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