Classification Of Silica Gel

- Apr 03, 2018-

Generally speaking, silica gel according to its nature and composition can be divided into organic silica gel and inorganic silica gel two categories. Inorganic silica Gel is a highly active absorbent material, usually with sodium silicate and sulfuric acid reaction, and through aging, acid bubble, such as a series of reprocessing process. Silica gel is a amorphous substance whose chemical formula is mSiO2. nH2O. Insoluble in water and any solvent, non-toxic tasteless, chemical property stability, in addition to strong alkali, hydrofluoric acid and no reaction with any matter. Various types of silica gel because of their different manufacturing methods to form a different micro-pore structure. The chemical composition and physical structure of silica gel make it more difficult to replace with many other similar materials: High adsorption performance, good thermal stability, stable chemical properties, high mechanical strength and so on, the family used as desiccant, humidity regulator, deodorant, etc. industry used as oil-hydrocarbon decolorizing agent, Catalyst carrier, pressure swing adsorbent, etc.

Fine chemical separation of purification agent, beer stabilizer, paint thickening agent, toothpaste friction agent, matting agent. Silicone is a silicone compound, which is a compound containing si-c bonds and at least one organic base that is directly connected to the silicon atom, and is often used as a silicone compound for compounds that connect organic to silicon atoms by oxygen, sulfur, and nitrogen.

Among them, polysiloxane with silicon oxygen bond (-si-o-si-) as the skeleton, is the most of silicone compounds, the most research, the most widely used category, about 90% of the total dosage.

Extrusion silicone is more common, such as household electric cookers on the seal ring, called the rice Cooker silicone seal ring. Molded silicone is more complex, irregular shape, including silicone bowl, silicone ice, silicone cake mold and so on.