Inorganic silicone (silica gel)

Inorganic silica gel is a kind of high activity adsorption material, usually with sodium silicate and sulfuric acid reaction, and after aging, acid bubble and a series of post-treatment process. Silica gel is amorphous material, its chemical formula is mSiO2. NH2O. Insoluble in water and any solvent, non-toxic tasteless, stable chemical properties, in addition to strong alkali, hydrofluoric acid does not react with any material. Various types of silica gel due to its different manufacturing methods and the formation of different microporous structures. The chemical composition and physical structure of silica gel determines that it has many characteristics that are difficult to be replaced by other similar materials: high adsorption performance, good thermal stability, stable chemical properties, high mechanical strength, etc. Because of its chemical properties, it is used to do many kinds of silica gel products, such as silica gel sealing ring, silica gel sealing strip, silica gel kitchenware and so on.

Silica gel according to the size of its aperture is divided into: macroporous silica gel, coarse porous silica gel, B type silica gel, fine porous silica gel. Due to the difference of pore structure, their adsorption properties are different. Coarse pore silica gel in the case of high relative humidity has a higher adsorption capacity, fine pore silica gel is in the case of low relative humidity absorption is higher than coarse pore silica gel, and B type silica gel due to pore structure between coarse and fine pores, the adsorption capacity is also between coarse and fine pores. Macroporous silica gel is generally used as catalyst carrier, extinction agent, toothpaste abrasive, etc.

From the product classification, application characteristics and precautions of silica gel, silicone rubber raw materials and liquid silicone rubber raw materials, there will be their respective differences. The application technology and main application uses of silica gel raw materials and liquid silicone rubber raw materials are well known. We can find, study and explore more. Know silica gel.

Silicone resin is mainly used as insulating paint (including varnish, enamel, color paint, immersion varnish, etc.) to impregnate H class motor and transformer coil, and used to impregnate glass cloth, glass cloth and asbestos cloth into motor sets, electrical insulation winding, etc. Silicon resin can be used as heat and weather resistant anticorrosive coating, metal protective coating, waterproof and moisture-proof coating for construction engineering, demoulding agent, adhesive and secondary processing into silicone plastic, used in electronics, electrical and national defense industry, as semiconductor packaging materials and electronic components of insulating materials. Resin can also be used as heat and pressure resistant anticorrosive coating, metal protective coating, waterproof and moisture-proof coating for construction engineering, demoulding agent, adhesive and secondary processing into silicone plastics, used in electronics, electrical and national defense industry. Compared with other silicone materials, silicone resin varieties are relatively few and the market share is small.

Using pure silicone resin or modified silicone resin as the base material, silver paint with aluminum powder can be used at the corresponding temperature of 400-450℃, or even 600℃. Compared with ordinary organic resins, silicone resins have excellent weather resistance, and the wavelength domain of the sunlight spectrum is more than 300nm, while silicone only absorbs light below 280nm. The hydrolysis of silicone resins often includes more than two monomers with different hydrolysis rates. In order to smooth out the difference of different silane hydrolysis rates and cause uniform co-hydrolysis conditions, hydrolysis and alcoholysis are usually carried out simultaneously.