This is probably the most comprehensive of gas phase method of silica gel

by:Keyuan     2020-12-04
Gas phase method of silica gel is in common kind of raw material of silicone rubber products industry, but as a purchase you for purchasing the silicone products you work out the meaning of the gas phase method of silica gel, the difference between food grade silica gel? The advantages and disadvantages are is how? Rubber belt you know slowly. What is silica gel by gas phase technique in gas phase method of silica gel is also called the high strength of silicone rubber, the main production of high transparent silicone products, it is compared with ordinary silica gel to make high elastic rubber, high toughness, and the compression deformation of the buffer is low, high resistance to yellow effect of products, the gas phase method of silica gel is the use of silicon tetrachloride and air combustion of the proceeds of the silica gel made of silicon dioxide, fineness of more than 1000 mesh. And the difference between the precipitation of silica gel, after the production of sulfuric acid is added is the use of sodium silicate in the silica precipitation. Only 300 - fineness 400 mesh. Gas phase method of silica gel and food-grade gas phase method and the relationship between the medical grade silicone silicone with food grade and medical grade silicone has a lot of similarities, can also through certain export certification testing but after adding different vulcanization agent will have different effect and inspection standards, although gas phase method of silica gel and food-grade silicone similar but still want to add curing agent curing effect to detect by FDA certification, and for the European and American LFGB testing certification or uncertain. The gas phase method of silica gel ( The gas phase glue) With the precipitation silica gel ( Ordinary silica gel) The difference between precipitation silica white phenomenon occurs on the tensile, and low tensile strength and gum of the gas phase at the time of stretching there won't be appear white phenomenon in the tensile strength can reach about 500%. Silicon tetrachloride and air combustion of silicon dioxide, fineness of 1000 mesh above precipitation after production of sulfuric acid is added is the use of sodium silicate in the silica precipitation. Only 300 - fineness 400 orders, so the gas phase method of silica gel compared with ordinary silica gel on the performance of price also clearly must be a little expensive.
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