What are the main raw materials used in the production of silica gel?
According to properties of silicone raw materials can be divided into ordinary silica gel and silica gel silica gel silica gel precipitation weather also known asColor: translucent, milky, light yellow, gray, etc..Hardness: 30 degrees, 40 degrees, 50 degrees, 60 degrees, 70 degrees, 80 degrees, etc., commonly used between 40 degrees - 70 degrees. Density: 1.1-1.12g/cm2 elongation: 400%Usage: use is more mobile phone keys, sundries, etc. low conductive adhesive silicone products. Meteorological silica gel is also called pure silica gel color: transparent.Hardness: 30 degrees, 40 degrees, 50 degrees, 60 degrees, 70 degrees, 80 degrees, etc., commonly used between 40 degrees - 60 degrees. Density: 1.1-1.12g/cm2 elongation: 600%-700%Features: this material has good transparency and strong tensile resistance. High cost.Uses: silicone tube, protective sleeve and other high-end products need high flexibility.
Silica gel (Silica gel; Silica) alias: silica gel is a kind of high active adsorption material, belonging to the amorphous material, its molecular formula is mSiO2 nH2O; in addition to alkali, hydrofluoric acid does not react with any material, insoluble in water and any solvent, non-toxic, chemically stable. Different types of silica gel have different microporous structures because of their different manufacturing methods. The chemical composition and physical structure of silica gel determine that it has many characteristics which are difficult to be replaced by other similar materials: high adsorption properties, good thermal stability, stable chemical properties, high mechanical strength, etc.. Silica gel according to its size of pore size is divided into: macroporous silica gel, coarse pore silica gel, B type silica gel, pore silica gel and so on.
The raw material of silica gel can be divided into domestic and imported materials according to the source.Domestic materials are: East Duke, Swiss camp, Hongda, Tian Yu, New Oriental, polymerization and other larger producers.The imported materials mainly include: Shin-Etsu, Toshiba, Dow Corning, French Rodia, Wacker etc..
Silica gel is divided into solid silica gel and liquid silica gel according to its physical properties. ?Solid silica gel is mainly used for molding products. Such as: silica gel sleeve, silica gel tableware, silica gel button and so onLiquid silicone is mainly used for extrusion products, such as silicone nipple, silicone tube and so on.
