Silicone oil has many special properties, such as low temperature viscosity coefficient, high and low temperature resistance, oxidation resistance, high flash point, low volatility, good insulation, low surface tension, non-corrosive to metal, non-toxic, etc. Due to these properties, silicone oils are used in many ways with excellent results. Among various silicone oils, methyl silicone oil is the most widely used and the most important type of silicone oil, followed by methyl phenyl silicone oil. Various functional silicone oils and modified silicone oils are mainly used for special purposes.

Properties: Colorless, odorless, non-toxic and non-volatile liquid.

Uses: There are various viscosities. It has high heat resistance, water resistance, electrical insulation and low surface tension. It is often used as high-grade lubricating oil, anti-vibration oil, insulating oil, defoaming agent, release agent, polishing agent, release agent and vacuum diffusion pump oil, etc.; emulsion can be used for car tire polishing, instrument panel polishing, etc. Methyl silicone oil is the most commonly used. After emulsification or modification, it can be used in the finishing of textiles for smooth and soft touch. In daily care products, emulsified silicone oil is also added to shampoos to improve the lubricity of hair. In addition, there are ethyl silicone oil, methylphenyl silicone oil, nitrile-containing silicone oil, polyether modified silicone oil (water-soluble silicone oil) and the like.

Preparation or source: Oily substance obtained by hydrolysis and polycondensation of difunctional and monofunctional organosilicon monomers.

Dimethicone

[Performance characteristics]

XY-Simethicone Oil, the chemical name is polydimethylsiloxane, and its molecular formula is:

(CH3)3SiO[(CH3)2SiO]n-Si(CH3)3,

Simethicone is a new colorless and transparent synthetic polymer material with various viscosities (5 cps to 8 million cps), ranging from easily flowing liquid to thick semi-solid. This product has special slipperiness, softness, hydrophobicity, good chemical stability, excellent electrical insulation and high and low temperature resistance. It has high flash point and low freezing point, and can be used for a long time at -50℃～+200℃. It has small viscosity-temperature coefficient, high compressibility, low surface tension, good hydrophobicity and moisture resistance, and small specific thermal conductivity.

2. Technical indicators:

Viscosity (25°Ccp) Dielectric constant Flash point (°C) Relative density Refractive index Surface tension dyn/cm

50 2.70 270 0.950～0.960 1.401 20.9

100 2.70 300 0.960～0.970 1.402 21.0

300 2.72 300 0.965～0.975 1.403 20.1

500 2.75 300 0.965～0.975 1.403 21.1

1000 2.76 300 0.965～0.976 1.404 21.2

2000 2.80 300 0.970～0.975 1.404 21.2


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