Applications of Dimethyl Silicone Oil

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When we refer to the dimethyl silicone oil, we always mean the linear dimethyl silicone oil with methyl groups connected to silicon atoms and with Si-O-Si as the main chain.

It is due to the small intermolecular force, the molecules are in a helical structure, and the methyl groups are arranged outward and they can rotate freely.

Therefore, it has a series of characteristics, such as colorless and transparent, wide viscosity range (from 0.65 to 1000000mm2/s), small temperature viscosity coefficient, large expansion coefficient, low vapor pressure, high flash point, high and low temperature resistance, weather resistance, radiation resistance, Low surface tension, high compressibility, oxygen plasma resistance, high insulator, shear resistance, film-forming, hydrophobic, defoaming, mold release, high gloss, inert to materials, chemically inert, non-corrosive and physiologically inert. These characteristics are determined the wide usages of dimethyl silicone oil.

General Applications of Dimethyl Silicone Oil

1. Application in electromechanical industry.

Dimethyl silicone oil is widely used in motors, electrical appliances, and electronic instruments as an insulating medium for temperature resistance, arc corona resistance, corrosion resistance, moisture resistance, and dust resistance. It is also used as an impregnating agent for transformers, capacitors, and scanning transformers for TV sets and etc. In various precision machinery, instruments and meters, it is used as a liquid shockproof and damping material. The shock absorption performance of silicone oil is less affected by temperature, and it is mostly used in the occasions with strong mechanical vibration and large changes in ambient temperature such as instruments used in aircraft and automobiles. It is used for anti-shock, damping, and stabilizing instrument readings. It can also be used as a liquid spring.

2. As a defoamer.

liconemethicone oil has a small surface tension and is insoluble in water, animal and vegetable oils, and high-boiling mineral oils, it has good chemical stability and is non-toxic. It has been widely used as a defoamer in petroleum, chemical, and medical industries. In industries such as pharmaceuticals, food processing, textiles, printing and dyeing, and papermaking, as long as 10-100PPM of silicone oil is added, it will have a good defoaming effect.

3. As a release agent.

As a release agent, due to the non-stickiness between dimethyl silicone oil and silicone rubber, plastic, metal, etc. It is also used as a release agent for molding and processing of various rubber and plastic products, and for precision casting as well. Using it as a release agent is not only convenient for demolding, but also makes the surface of the product clean, smooth and clear in texture.

4. Used as insulation, dustproof and anti-mildew coating.

As an insulating, dustproof and mildew-proof coating, dip-coat a layer of dimethyl silicone oil on the surface of glass and ceramics, and after heat treatment at 250-300 ° C, a layer of semi-permanent waterproof, mildew-proof and insulating properties can be formed film. Using it to treat insulating devices can improve the insulation performance of the device. Using it to treat optical instruments can prevent lenses and prisms from becoming moldy; using it to treat medicine bottles can prolong the shelf life of medicines and prevent the loss of preparations due to sticking to the wall; The treatment of the surface of the movie film can lubricate, reduce friction and prolong the life of the film.

5. As a lubricant Oil.

Silicone oil is suitable as a lubricant oil for rubber, plastic bearings and gears. It can also be used as a lubricant oil for the rolling friction of steel against steel at high temperature, or the friction between steel and other metals. However, it is since the lubricating performance of methyl silicone oil is not particularly good at room temperature, it is not recommended as a normal temperature lubricant under normal circumstances.

6. As an additive.

Dimethyl silicone oil can be used as an additive for many materials, such as a brightening agent for paints. Adding a small amount of silicone oil to the paint can prevent the paint from floating or wrinkling and improve the brightness of the paint film. Adding a small amount of silicone oil to the ink will It can improve the printing quality, adding a small amount of silicone oil to the polishing oil (such as car varnish), can increase the brightness, protect the paint film, and have excellent waterproof effect.

7. Application in medical and health.

Silicone oil is non-toxic to the human body and is not decomposed by body fluids, so it is also widely used in medical and health services. It is taking advantage of its defoaming effect, it has been made into oral gastrointestinal anti-bloating tablets, pulmonary edema defoaming aerosol and other medicinal products. Adding silicone oil to the ointment can improve the penetration ability of the drug to the skin and improve the efficiency of the drug. Some ointments based on silicone oil have good curative effects on burns, dermatitis, bedsores, etc. Using the anticoagulant effect of silicone oil, it can be used to treat the surface of blood storage containers and prolong the storage time of blood samples. It can also be used as a wet lubricant for condoms, and it does not kill sperm.

8. Other aspects.

liconemethicone has many uses in other ways. For example: by making full use of its high flash point, odorless, colorless, transparent and non-toxic to the human body, it can be used as a heat carrier in oil baths or thermostats in steel, glass, ceramics and other industries and scientific research. Utilizing its good shear resistance performance, it can be used as hydraulic oil, especially aviation hydraulic oil. Using it to treat rayon spinning head can eliminate static electricity and improve spinning quality. Adding silicone oil to cosmetics can improve the moisturizing and protective effects on the skin and so on.

Summary

It is since the dimethyl silicone oil has lots of advantages and applied in many different industries, it is now one of the largest selling silicone compounds in the world. It has an evidently bright future in both everyday & industrial use.