Silicone oil

Properties: Hydroxy silicone oil is a linear polydimethylsiloxane with a hydroxyl end group, oily liquid. It has the characteristics of methyl silicone oil. Low viscosity hydroxyl silicone oil is an excellent structure control agent in silicone rubber processing, can replace diphenylsilanediol, simplify the process, improve the process productivity. In hydroxyl silicone oil, Si-O has high thermal stability; the Si-O-Si bond on the Si atom connected to the hydrocarbon group has the effect of dipole induction, which can improve its stability. The structure of the silicone oxygen chain also gives silicone low surface tension and weak intermolecular forces, and hydroxyl silicone oil, due to its special structure, has very good hydrophobicity. The viscosity can range from very small to tens of thousands of Pa-sec. Its hydroxyl content is from several ten thousandths to more than ten percent, typical hydroxyl silicone oil viscosity ≤ 40mPa - s (25 ℃), refractive index 1.4000 ~ 1.4100 (25 ℃), hydroxyl content 4% ~ 5%. The terminal hydroxyl group is reactive and can condense with hydroxyl or alkoxy compounds under the catalytic action of organotin.

Application Area

It is used as insulating, lubricating, damping, shock-resistant, moisture- and dust-proof, high-temperature hydraulic oils and high-temperature heat carriers, oils for filling transformers, as well as pressure signal transmission media for various types of pressure transducers.

Properties: The main characteristics of vinyl silicone oil is colorless, odorless, non-toxic, non-volatile liquid, insoluble in water, and benzene, dimethyl ether, carbon tetrachloride or kerosene, slightly soluble in acetone, ethanol. It has a very small vapor pressure, high flash point and ignition point, low freezing point with the number of chain segments n different, the molecular weight increases, the viscosity also increases, solid this vinyl silicone oil can have a variety of different viscosity. Vinyl silicone oil can be mainly terminal vinyl polydimethylsiloxane (Vi-PDMS) and terminal vinyl polymethyl vinyl siloxane (Vi-PMVS).

Properties: Dimethicone silicone oil is a transparent, colorless, tasteless, odorless, non-toxic oily liquid. It has high flash point, low freezing point, good thermal stability, high and low temperature resistance and other characteristics. It can be used for a long time under -50 ℃ - +180 ℃, such as in the air insulation or inert gas in the long-term use of the temperature up to 200 ℃. The surface tension of silicon is very small, the compression rate, good anti-shear performance, viscosity temperature coefficient is small, the dielectric loss is small; electrical insulation resistance, corona, non-flammable; water-repellent and moisture-proof, but also has good physiological inertia.