News

Home > News > Content

Classification Of Silica Gel

Lohas Silicone Rubber Co.,Ltd | Updated: Mar 01, 2017

In general, silica gel according to its nature and components can be divided into organic silicone and inorganic silicone two major categories.

Inorganic silica Gel is a highly active adsorption material, usually with sodium silicate and sulfuric acid reaction, and through aging, acid bubble and a series of reprocessing process. Silica gel belongs to amorphous material, its chemical formula is mSiO2. Nheo. Insoluble in water and any solvents, non-toxic tasteless, stable chemical properties, in addition to strong alkali, hydrofluoric acid and no matter what the reaction. Various types of silica gel with different manufacturing methods to form a different pore structure. The chemical composition and physical structure of silica gel determine its irreplaceable characteristics of many other similar materials: High adsorption property, good thermal stability, stable chemical property, high mechanical strength, etc. household used as desiccant, humidity regulator, deodorant, etc. industry as oil-hydrocarbon bleaching agent, Catalyst carrier, PSA, etc. fine chemical separation and purification agent, beer stabilizer, coating thickening agent, toothpaste friction agent, matting agent and so on.

Silicone is an organic silicone compound that contains Si-C bonds, and at least one organic base is directly linked to the silicon atom of the compound, it is customary to use oxygen, sulfur, nitrogen and other compounds to make the organic base and silicon atom linked to the organic silicon compound. Among them, silicone oxygen (Si--O-Si) as the skeleton of Polysiloxane, is the most organic silicon compounds, the deepest research, the most widely used category, accounting for about 90% of the total dosage.

Extruded silica gel is more common, such as the domestic electric cooker on the seal ring, known as the rice Cooker silicone seal ring.

Molded silica gel is more complex, irregular shape, including silicone bowl, silicone ice lattice, silicone cake mold and so on.