Silicone oil: DMC (Dimethylcyclosiloxane) basic information

Dimethylcyclosiloxane (DMC)

I. Chemical name:

Dimethylcyclosiloxane (DMC)

Main ingredients of mixed ring: D3, D4, D5, D6, D7

Two, molecular formula:

Molecular formula [(CH3)2SiO] N N =3, 4, 5, 6, 7

Three, physical and chemical properties

Physical properties: Dimethylsiloxane mixed ring (DMC) is a colorless transparent oil liquid, combustible, density range of 0.95-0.97g/cm3, different number of silicon-oxygen chain link cyclosiloxane physical data as follows:

Four, performance and use

Dimethylsiloxane mixed ring (DMC) is the main raw material for the production of silicone rubber and silicone oil. It is also widely used in the treatment of rubber fillers and cosmetics. Using dimethylsiloxane mixed ring (DMC) to prepare silicone rubber, silicone oil and other polysiloxane products, can be further processed into a variety of improved silicone rubber and silicone oil with high and low temperature resistance, good insulation performance, climate aging resistance, ozone resistance and better radiation resistance; It is used in relevant manufacturing industry and closely related to people's life.

V. Product Standards:

Field of Application:

cosmetics

In addition to direct use of polydimethylsiloxane, in order to make methylsilicone oil dispersion, easy to impregnate, spraying, improve efficiency. Can also be prepared into solution type, lipid, emulsion type three types of use. It and its derivatives are high quality cosmetics raw materials, with good skin care function, belong to the cosmetics raw materials of synthetic oils. This product is non-toxic, non-irritating to skin and mucous membranes, but irritating to eyes, generally recognized as safe.

The moisture retention of polydimethylsiloxane Polysiloxane is the general term for this class of substances, also known as silicone or silicone oil, are substances in this category. In cosmetics, have the function of the lubrication performance, resistance to ultraviolet ray, permeability is good, has the obvious dustproof function, is also used to replace the traditional oil in cosmetic raw materials, which is based on polydimethylsiloxane has characteristic of good softness, protect skin to taste is usually used in the wet sex products, some high-end skin care products will be applied.

The permeability of polydimethylsiloxane is very good for skin permeability. The smooth and refreshing feeling of skin care products applied to the skin is usually due to the addition of the raw material. The raw material itself also has a good effect on increasing the softness of the skin. It can be found in hair care and shampoos that darken the color of your hair, help your hair retain its natural shine, and basically, in shampoos that make your hair smooth.

In cosmetics, polydimethylsiloxane is required to have low viscosity, good volatility, easy to clean, and the highest proportion of use can reach more than 15%. The expert panel on cosmetic composition review concluded that dimethylsiloxane and related derivatives are "formulated safe for use in cosmetics."

There is no irritation to the skin and mucous membrane, but there is certain irritation to the eyes. Generally recognized as safe, polydimethylsiloxane has been approved for use in cosmetics by international authorities, led by the FDA, and has been recognized as a potential health risk by the United States' CIR, Cosmetic Ingredient Review. [1]

Electrical appliances product

Polydimethylsiloxane can be used for electronic connectors in electrical and electronic industry.

Leather goods

Polydimethylsiloxane, can be used for fiber, leather: hydrophobes, softeners, hand modifier, dyeing industry defoaming agent, sewing thread lubrication. The emulsion can be applied to fatting leather to enhance the hydrophobicity, softness and comfort of leather. Use it to treat leather surface, can enhance wear resistance, water resistance and demoulding.

brightener

Polydimethylsiloxane IS SUITABLE FOR USE AS BRIGHTENER INGREDIENT IN AUTOMOBILE, furniture, footwear, cement products, ETC., INCLUDING automobile BRIGHTENer, foam furniture cleaner, VINYL roof cleaner, BUILDING material BRIGHTENER FORMULA, WITH the LEAST AMOUNT can achieve the best effect.

Release agent

Polydimethylsiloxane, can be used as rubber or plastic products (brake plate, screw head, plug, etc.), EVA shoe material release agent, directly or with low hardness water diluted 10-200 times use, the product is efficient, stable, widely used.

lubricant

Polydimethylsiloxane 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: yarn weaving, sewing lubrication, production of socks and underwear, sewing needle lubrication, glass fiber filter.

In other areas

Polydimethylsiloxane is a food grade antifoaming agent, which can be used in medicine, food brewing and fermentation time of antifoaming. 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. Silicones, or silicone oil, are the generic term for a class of organosilicon oxide polymers. Dimethyl silicone oil is only one of its commonly used agents. In addition, there are ethyl silicone oil, methyl phenyl silicone oil, silicone oil containing wax and so on. In tablet polish insect wax, a small amount of this product is often added to enhance partial brightness and moisture resistance. In the ointment, this product has good lubricity, easy to spread, does not stain clothes, does not interfere with the normal function of the skin, etc., and is an ideal hydrophobic matrix. Often combined with grease matrix to make protective ointment, used to prevent the irritation or corrosion of water-soluble substances and acids, lye, etc.