| Customization: | Available |
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| CAS No.: | 63148-62-9 |
| Formula: | C6h18osi2 |
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Silicone oil is a polysiloxane formed by alternating arrangement of silicon and oxygen elements, usually in liquid or gel form, with excellent chemical stability and high temperature resistance. The most commonly used silicone oil - methyl silicone oil, also known as ordinary silicone oil, its organic groups are all methyl groups. Modified silicone oil refers to the product obtained after chemical modification of traditional silicone oil. By changing the molecular structure of silicone oil or adding functional groups, it has specific performance and application characteristics. Silicone oil is widely used in a variety of applications due to its excellent lubricity, water resistance and chemical stability.
Silicone oil is generally colorless (or light yellow), tasteless, non-toxic, non-volatile liquid. Silicone oil is insoluble in water, methanol, ethylene glycol and 2-ethoxyethanol, and can be miscible with benzene, dimethyl ether, methyl ethyl ketone, carbon tetrachloride or kerosene, slightly soluble in acetone, dioxane, ethanol and butanol, and easily soluble in benzene, toluene, xylene, ethyl ether and chloroalkanes. Silicone oil gives the molecular chain excellent flexibility due to its long Si-O bond length, large bond Angle, large molecular volume and high degree of free rotation. The shielding effect of organic groups on the molecular side chain makes the interaction between the molecular main chain weak, resulting in low surface tension. The bond energy of Si-O bond (460.5 kJ/mol) is significantly higher than that of C-O bond (358.0 kJ/mol), C-C bond (304.0 kJ/mol) and Si-C bond (318.2 kJ/mol), which gives it excellent aging resistance [4]. It has a small vapor pressure, high flash point and ignition point, low freezing point, and can be used for a long time in the temperature of -50ºC-+180ºC. With the different number of chain segments n, the molecular weight increases, the viscosity also increases, and the solid silicone oil can have a variety of different viscosity, from 0.65 CST to millions of CST. If you want to produce low viscosity silicone oil, acid clay can be used as a catalyst and telomeric at 180 ° C, or sulfuric acid can be used as a catalyst and telomeric at low temperature to produce high viscosity silicone oil or gunk.
Silicone oil has heat resistance, electrical insulation, weather resistance, hydrophobicity, physiological inertia and small surface tension, in addition to low viscosity-temperature coefficient, high resistance to compressibility, and some varieties also have radiation resistance. Strong shear resistance, more than 20 times the compressibility of general mineral oil, is an ideal liquid spring, excellent electrical characteristics, high breakdown voltage resistance, arc resistance, corona resistance, low dielectric loss, but also has good light transmission and non-toxic effects on the human body. In addition, silicone oil also has good film formation, hydrophobicity, air permeability and physiological inertia, which can form a soft and breathable protective film on the surface of the skin, so that the skin can keep tender and smooth.
The most commonly used silicone oil, organic groups are all methyl, called methyl silicone oil. Organic groups can also use other organic groups to replace part of the methyl group, in order to improve a certain performance of silicone oil and suitable for a variety of different uses. Other common groups are hydrogen, ethyl, phenyl, chlorophenyl, trifluoropropyl and so on. According to the chemical structure, the silicone oil is divided into methyl silicone oil, ethyl silicone oil, phenyl silicone oil, methyl hydrogen silicone oil, methyl chlorophenyl silicone oil, methyl ethoxysiloxy silicone oil, methyl trifluoropropyl silicone oil, methyl vinyl silicone oil, methyl hydroxyl silicone oil, ethyl hydrogen silicone oil, hydroxyl hydrogen silicone oil, cyanide silicone oil, etc. Divided from the use, there are damping silicone oil, diffusion pump silicone oil, hydraulic oil, insulation oil, heat transfer oil, brake oil, etc.
| Overview | Dimethyl Silicone Oil |
| Appearance | Colorless transparent liquid |
| Viscosity | 50Cst,100Cst,350Cst,500Cst and 1000Cst,etc.(Customizable) |
| Delivery Time | Spot wholesale 3-5 Days Mass Production 7-15 Days |
| Packing | 25kg/50kg/200kg/1000kg IBC (Customizable) |
Dimethyl silicone oil also known as dimethicone, it has physiological inertness, good chemical stability, electrical and weather resistance, wide viscosity range, low freezing point, high flash point, good hydrophobicity, and high shear resistance. ability. |
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