The main component of silica is silicon dioxide, which is chemically stable and non-combustible. Silicone is a kind of amorphous silica, silica gel has a strong adsorption ability and can have a drying effect on human skin, therefore, you should wear good work clothes when operating. Silica gel in the process of use because of the adsorption of water vapor or other organic substances in the medium, the adsorption capacity decreases, can be reused by regeneration.
The main component of silica is silicon dioxide, which is chemically stable and non-combustible. Silicone is a kind of amorphous silica, and the dust content of the workshop should be controlled to be no more than 10 mg/m3. It is necessary to strengthen the exhaust air and wear a mask when operating.
Silica gel has a strong adsorption ability and can have a drying effect on human skin, therefore, you should wear good work clothes when operating. If silica gel gets into your eyes, you need to flush it with a lot of water and seek medical treatment as soon as possible.
Blue silica gel has potential toxicity because it contains a small amount of cobalt chloride, so contact with food and inhalation should be avoided, and if poisoning occurs, a doctor should be sought immediately.
Silica gel in the process of use because of the adsorption of water vapor or other organic substances in the medium, the adsorption capacity decreases, can be reused by regeneration.
Generally speaking, silica gel can be divided into two categories: organic silica gel and inorganic silica gel according to its nature and components.
Inorganic silica gel is a highly active adsorbent material, which is usually made by reacting sodium silicate and sulfuric acid and undergoing a series of post-treatment processes such as aging and acid soaking. Silica gel is an amorphous substance with the chemical formula mSiO2 .nH2O. insoluble in water and any solvent, tasteless, chemically stable, and does not react with any substance except strong alkali and hydrofluoric acid. Various types of silica gel form different microporous structures due to their different manufacturing methods. 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. It is used as desiccant, humidity regulator, deodorizer, etc. in households; used as decolorizer for oil hydrocarbon, catalyst carrier, variable pressure adsorbent, etc. in industry; used as separation and purification agent for fine chemicals, beer stabilizer, coating thickener, toothpaste rubbing agent, matting agent. Toothpaste rubbing agent, matting agent, etc.
Organosilicon is a kind of organosilicon compound, refers to the compound containing Si-C bond, and at least one organic group is directly connected with the silicon atom, it is also customary to treat those organic groups connected with the silicon atom through oxygen, sulfur, nitrogen, etc. as organosilicon compounds. Among them, the silicone bond (-Si-O-Si-) as the backbone of the composition of the polysiloxane, is the organosilicon compounds for the number of deep research, wide application of a class, accounting for about 90% of the total amount of more than.
Extruded silicone is more common, for example, the household rice cooker on the seal, called the rice cooker silicone seal.
Molded silicone is a little more complex and irregular in shape, including silicone bowls, silicone ice grids, silicone cake molds and so on.Key words:
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Junan County, Linyi City, Shandong Province Economic Development Zone Chinese