About material things

by:Keyuan     2020-12-04
Silica gel is a highly active adsorption material, amorphous materials, the chemical formula for mSiO2? nH2O。 Insoluble in water and any solvents, non-toxic tasteless, stable chemical properties, in addition to the strong alkali, hydrofluoric acid does not react with any material. Various types of silicone because of the different manufacturing methods and form different microporous structure. Chemical components and physical structure of the silica gel, determines it has many other similar materials difficult to replace features: high adsorption properties, thermal stability, chemical stability, has high mechanical strength, etc. The silicone raw materials can also be called mold silicone rubber, pad printing silicone, hand-board silica gel, etc. Silica gel according to the size of the aperture is divided into: macroporous silica gel, coarse pore silica gel, b-type silica gel, silica. Because of the different pore structure, so the adsorption performance of each have their features. Coarse silica gel in the case of high relative humidity had higher adsorption capacity, pore silica gel, in the case of low relative humidity adsorption amount higher than the coarse silica gel, and b-type silica gel because the pore structure between coarse and fine silica and its adsorption quantity also between coarse and fine mesh. Macroporous silica gel generally used as a catalyst carrier, flatting agent, toothpaste abrasive, etc. Therefore should choose according to different purposes of different varieties. Silica gel adsorption water, can use insolate, roasting, air drying methods such as regeneration. Safety performance silicone main composition is sio2, chemical stability, non-toxic. Silica gel has a strong adsorption ability, drying effect on a person's skin. If the silica gel into the eyes, need a lot of water washing, and find a doctor as soon as possible. Blue silica gel due to contain a small amount of cobalt chloride, toxic, and food contact should be avoided and the suction mouth, such as poisoning incidents should be looking for a doctor immediately. With silica gel was accepted by the people more and more, the application of silicone neighborhood is the more the better, people demand for silicone raw material also more and more big, the demand of the market future silicone raw materials is very optimistic, because the silicone is a weak cycle industry, the total demand is predictable and in foreign countries, many industries are now using silica gel, in China, the dosage of silica gel dosage of the country, guangdong province, more than 80% of the total, the likely increase in the future! Silicone advantages gradually found by people, instead of a lot of other material objects used in our daily life, silicone, silicone rubber raw materials of magic is changing our life. From silicone, silicone rubber raw materials, product classification, the application characteristics of liquid silicone rubber raw materials as well as the matters needing attention, will have their own different, silicone raw materials, the application of liquid silicone rubber raw materials technology and main application purposes, we can have more to discover, research and exploration. Understand the silica gel, just for a better understanding of yourself!
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