EINECS 226-171-3
MFCD00084411
Dimethyl(oxo)silane
dimethylsilanone
Silicone
Silane, dimethyloxo-
Polydimethylsiloxane
Cas No. 63148-62-9
The chemical state of polydimethylsiloxane Dimethicone, depending on the relative molecular weight, varies from colorless and transparent volatile liquids to extremely high-viscosity liquids or silica gels. It is odorless, highly transparent, heat-resistant and cold-resistant.Resistance, viscosity, small change with temperature, water resistance, low surface tension, thermal conductivity, thermal conductivity of 0.134-0.159W/(m·K), light transmittance is 100%, dimethyl silicone oil is non-toxic and tasteless, It has physiological inertness and good chemical stability.Good electrical insulation, weather resistance, hydrophobicity, and high shear resistance. It can be used for a long time at -50℃～200℃.With excellent physical properties, it can be directly used for moisture-proof insulation, damping, shock absorption, defoaming, lubrication, polishing, etc. It is widely used as insulation lubrication, shockproof, oil dustproof, dielectric fluid and heat carrier.And used as defoaming, release agent, paint and daily chemical additives.Polydimethylsiloxane can be mixed with lanolin, stearyl alcohol, cetyl alcohol, glyceryl monostearate, Tween, Span and other surfactants to be used as an emulsion base.Adding film forming agents such as PVP, PVA and cellulose derivatives to this product can enhance its protective properties.The drug release and skin penetration performance is faster than dolphin, lanolin and petrolatum.
In addition to direct use of polydimethylsiloxane, in order to disperse the methyl silicone oil well, facilitate dipping and spraying, and improve efficiency.It can also be used in three types: solution type, lipid type and emulsion type.
It and its derivatives are both high-quality raw materials for cosmetics, with good skin care functions, and belong to synthetic oils in cosmetic raw materials.
This product is non-toxic, non-irritating to the skin and mucous membranes, but irritating to the eyes, and is generally recognized as safe.
Electrical goodsPolydimethylsiloxane can be used for electronic connectors in the electrical and electronic industries.
Leather goodsPolydimethylsiloxane can be used for fiber and leather: water repellent, softener, feel improver, defoamer in dyeing industry, and lubrication of sewing thread.
The emulsion can be applied to the fatliquoring of leather, thereby enhancing the hydrophobicity, softness and comfort of the leather.Using it to treat the leather surface can enhance abrasion resistance, water resistance and mold release.
BrightenerPolydimethylsiloxane is suitable for use as a brightener component in automobiles, furniture, shoes, cement products, etc., including car brighteners, foam furniture cleaners, vinyl roof cleaners, and brightening formulations for building materials.
The least amount can achieve the best results.Release agentPolydimethylsiloxane can be used as a release agent for rubber or plastic products (brake plates, screws, plugs, etc.) and EVA shoe materials. It can be used directly or diluted 10-200 times with low-hardness water. The product is highly efficient,Stable and extremely versatile.LubricantPolydimethylsiloxane can be used as a lubricant for extruding rubber products such as conveyor belts.It can be used as a lubricant for the following textile processes: weaving yarn, suture lubrication, socks and underwear production, suture needle lubrication, glass fiber filter.
Other areas Polydimethylsiloxane is a food-grade defoamer, which can be used for medicine and food brewing and defoaming during fermentation time.Because it is non-toxic and does not cause physiological reactions in the human body, it is also used as a medical antifoaming agent for the treatment of acute pulmonary edema and flatulence.The substance called silicones (or silicone oil) in pharmaceutics monographs is a general term for a class of organic silicon oxide polymers.Dimethicone is only one of its commonly used medicines.In addition, there are ethyl silicone oil, methyl phenyl silicone oil, wax-containing silicone oil and so on.In the tablet polishing agent insect wax, a small amount of this product is often added to enhance the brightness and moisture resistance of one side.In the ointment, this product is an ideal hydrophobic base because it has good lubricity, is easy to apply, does not stain clothes, does not interfere with the normal function of the skin, etc.It is often used in combination with a grease base to make a protective ointment, which is used to prevent irritation or corrosion of water-soluble substances, acids, lyes, etc.
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