What is silicone oil -Iota

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Service > What is silicone oil

What is silicone oil

Silicone oil has many special features, such as small temperature coefficient of viscosity, high temperature resistance, anti-oxidation, high flash point, low volatility, good insulation, surface tension, non-corrosive to metal, non-toxic and so on. Because of these properties, silicone oil is used in many areas and with excellent effect. In various silicone oils, silicone oil, methyl the most widely used, is the most important species of silicone oil, methylphenyl silicone oil followed. Various functional silicone and modified silicone oil is mainly used for special purposes.
Traits: colorless, odorless, non-toxic non-volatile liquid.
Use: There are various viscosities. Have high heat resistance, water resistance, electrical insulating properties and a smaller surface tension. Commonly used for high oil, shock oil, insulating oil, defoamers, release agents, polishes, release agents and a vacuum diffusion pump oil; coating emulsion may be used automobile tires, the dashboard light or the like. Methyl silicone oil is most commonly used. After emulsification or modified for use in the textile finishing on smooth soft feel after finishing the daily care shampoo also joined silicone emulsion to improve lubrication of hair. In addition, ethyl silicone oil, methylphenyl silicone oil, a nitrile-containing silicone oil, polyether-modified silicone oil (a water-soluble silicone oil) and the like.
Preparation or sources: from difunctional and monofunctional organic silicon monomer obtained by hydrolysis and condensation of oil.
Dimethicone
[Features]
XY- dimethicone, dimethicone chemical name, molecular formula is:
(CH3) 3SiO [(CH3) 2SiO] n-Si (CH3) 3,
Simethicone is a colorless and transparent new synthetic polymer materials, a variety of different viscosities (5cps ~ 800 万 cps), the liquid from flowing easily into a thick semi-solid product. This product has a special smoothness, softness, water repellency, good chemical stability, excellent electrical insulation resistance and high temperature resistance. High flash point, low freezing point, and long-term use at -50 ℃ ~ + 200 ℃, viscosity-temperature coefficient, compression ratio, low surface tension, water-repellent moisture resistance, thermal conductivity, specific heat small.
Second, the technical indicators:
Viscosity (25 ° Ccp) dielectric constant flash point (℃) refractive index of the relative density of 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
[Use]
Dimethyl silicone oil with a variety of excellent features, so in all sectors of industry and agriculture, defense industry, scientific research and medical and health departments have had an extremely wide range of applications. It is widely used for electrical insulation, mold release, anti-foaming, damping, shock, rolling, dust, water, high and low humid and so on.
1, used in mechanical and electrical industry: dimethicone widely used in the electrical, electronics, electronic instruments as temperature, corona arc resistance, corrosion, moisture, dust insulating medium, is still used as transformers, capacitors , TV scan transformer impregnation agents. In all kinds of precision machinery, equipment and instrumentation, and used as a liquid shock damping material. Absorber performance dimethicone little affected by temperature, used a strong mechanical vibration and ambient temperature changes big occasions, the instruments used, such as: airplane, automobile instrument. For shock, damping, stability meter readings, but also as a liquid spring, and in the aircraft's landing gear.
2. as a release agent: Because this product with rubber, plastic, metal and other non-sticky, they used a variety of rubber, plastics molding release agent, and for precision casting. Use it to make a mold release agent is not only convenient stripping, and make the product surface clean, smooth, clear texture.
3, as defoamers: Because this product is surface tension, and does not dissolve in water, animal and vegetable oils and high-boiling mineral oil, chemical stability, but also non-toxic, is used as defoamers have been widely used in petroleum, chemical, medical, pharmaceutical, food processing, textile, printing and dyeing, paper and other industries, just add 10-100PPM of silicone defoamers it has a good effect.
4. do insulation, dust, mold coating: After glass, ceramics surface layer dip and dimethicone, and subjected to heat treatment at 250-300 ℃, can form a semi-permanent waterproof, mildew and an insulating film. Deal with the isolation device can improve the insulation performance of the device: the deal with optical instruments, to prevent lenses, prisms moldy; deal with the bottle, can extend the shelf life of drugs, does not make preparations for the loss due to the sticky wall; with movie film surface treatment may be a lubricant to reduce friction and prolong the life of the film. First, as a lubricant: This product is suitable for making rubber, plastic bearings, lubricants gears. Also be used as high temperature steel rolling friction of steel, steel and other metals or lubricants in friction, but at room temperature simethicone is not particularly good lubricating properties, in general, is not recommended as the room temperature under the lubricant metals.
5, as an additive: it can be an additive in many materials, such as paint credit agent, a small amount of silicone oil is added to the paint, the paint can not floating bag, do not wrinkle the film to improve the brightness, to add a small amount of silicone oil ink, printing quality can be improved, a small amount of silicone oil is added to the polishing oils (such as automotive coatings), can increase the light, the protection film, and has excellent waterproofing effect.
6, in healthcare applications:; dimethicone no aquatic toxicity to humans, nor is decomposed body fluids, it is in the medical and health services, has also been widely used. Use of its anti-foaming effect, made an oral gastrointestinal consumer inflation films, pulmonary edema and other medicinal anti-foaming aerosol. Join silicone oil in the ointment, you can improve the ability of drugs to penetrate the skin, improve efficacy. In some silicone-based oil ointments have a good effect on burns, dermatitis, bed sores, etc., the use of silicone anti-clotting effect, use it to deal with the blood reservoir surface and prolong the storage time of the blood sample.
7. Other aspects: the product in other respects there are many uses. Such as: the use of its high flash point, odorless, colorless, transparent and non-toxic to humans and other characteristics, in steel, glass, ceramics and other industrial and scientific research, as oil bath or thermostat heat carrier. Make good use of its anti-shear properties, do the hydraulic oil in particular aviation hydraulic oil. With its processing rayon spinning head, can eliminate static electricity, improve the spinning quality. Join silicone oil in cosmetics can improve the moisturizing and protective effect on the skin, and so on.

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