What's the difference between silica gel and white carbon?
Three, use: used in rubber, plastic, paint, paint (putty) fillers and synthetic resin, ink is also used as a thickening agent, light metal polishing agent, release agent and casting insulation materials, are used in the manufacture of white pigment, models and pesticide carriers and adhesives etc..
White carbon, also known as precipitation, hydrated silica, fine silicic acid. Properties: the main component SiO2, its molecular formula SiO2nH2O1, white, amorphous fine powder, light weight, with an original diameter of less than 0.0003 cm. The melting point of 1750 DEG C, with a high insulation, insoluble in water and soluble in acid, caustic soda and hydrofluoric acid, the high temperature decomposition, water absorption. This product is a kind of reinforcing filler used in rubber and plastics industries, it has a rubber reinforcing effect after adding carbon black, the main characteristics of the vulcanizate of white carbon black is: anti expansion high strength, high elongation, elasticity and good heat resistance. This product is suitable for natural gum and synthetic gum. In the natural / styrene butadiene rubber, butadiene rubber / natural join the truck tire tread 5--10 phr silica instead of part of the carbon black, can improve the rubber tear strength, thermal stability and improve the properties of vulcanizates, in the use of formula, and silane coupling agent (Si--69) effect is better.
Use of organic silica gelVery wide range of applications. It is not only as the use of special materials, sophisticated technology, military aviation technology sector, but also for the various sectors of the national economy, its application has been extended to the construction, electrical and electronic, textile, automobile, machinery, chemical industry, papermaking, leather and metal paint, medicine and medical etc..Can make shoes, of course, can also breast enhancement.
Generally speaking, silica gel can be divided into two categories: organic silica gel and inorganic silica gel according to their properties and components.Inorganic silica gel is a kind of highly active adsorbent material, which is usually reacted with sodium silicate and sulfuric acid, followed by a series of post treatment processes such as aging and acid foaming. Silica belongs to the amorphous substance, and its chemical formula is mSiO2.nH2O. Insoluble in water and any solvent, non-toxic, tasteless, chemical stability, in addition to strong alkali and hydrofluoric acid, do not react with any substance.
