Polydimethylsiloxane
author: Leo
2024-07-26
Introduction
Composition and preparation:
Hydrogen-containing silicone oil is usually a colorless liquid prepared by the reaction of methyl chlorosilane and hydrogen, with excellent chemical stability and high oxidation resistance.
Chemical properties: because the molecule contains active Si-H bonds, hydrogen-containing silicone oil can participate in a variety of chemical reactions, in the presence of alkali or Lewis acid and other substances, can act with HO or R-OH, the release of H2. Its heat resistance is not as good as dimethyl silicone oil, but moisture-proof and anti-sticking properties are better.
Physical properties:
hydrogen silicone oil is a colorless transparent liquid with specific physical parameters such as viscosity and density.
Storage and transportation: hydrogen-containing silicone oil should avoid contact with alkaline substances, acid-proof, moisture-proof, stored in a cool and dry place. Its storage period is usually longer, after the expiration of the standard re-inspection, qualified can still be used.
Use
Waterproof treatment:
Under the action of metal salt catalyst, hydrogen-containing silicone oil can be crosslinked at low temperature to form a waterproof membrane on the surface of various substances. Therefore, it is widely used as a waterproof agent for fabrics, glass, ceramics, paper, leather, metal, cement, marble and other materials. Especially in fabric waterproof, hydrogen-containing silicone oil is excellent.
When used with methyl hydroxy silicone oil emulsion, it can not only waterproof, but also maintain the breathability of the fabric, and improve the tear strength, friction strength and anti-fouling of the fabric, and improve the feel and sewing performance of the fabric.
Textile Industry:
Hydrogen-containing silicone oil can be used as a post-finishing agent for fabrics (such as cotton, linen, silk, acrylic, polyester, etc.) to improve the waterproof and anti-fouling and durability of the fabric, while improving its feel and drape.
rubber products production:
As an anti-yellowing agent for high-temperature vulcanized silicone rubber, hydrogen-containing silicone oil can improve the color stability of rubber products.
As a crosslinking agent for addition silicone rubber series products, it can enhance the crosslinking density and physical properties of rubber materials.
Ink Manufacturing:
In the field of ink manufacturing, hydrogen-containing silicone oil can be used as a diluent for silicone ink to improve the fluidity and printing effect of the ink.
Paper Processing:
In paper processing, hydrogen-containing silicone oil can be used as a release agent and crosslinking agent, which helps to improve the processing efficiency and quality of paper and improve the waterproof performance of paper.
Lubricating fluid:
It is suitable for lubrication of rubber, plastic bearings and gears to reduce wear and friction.
Cosmetics industry:
Hydrogen-containing silicone oils are often used as functional ingredients such as skin moisturizers and softeners in cosmetics, which can make the skin feel smooth and delicate and form a protective film.
Other applications:
In the surface treatment of MgO (electrical grade MgO), the hydrogen-containing silicone oil plays an insulating role.
It is used as softener, hand feeling improver, lubrication of sewing thread, lubrication of chemical fiber spinneret and garment pressure lining additives in textile and garment industry.
In waterproof clothing, waterproof gypsum board and other products as a waterproof agent.
Application of Silicone Oil in Lubricating Oil
Method of removing silicone oil
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