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What Is Silicone Products?
Mar 27, 2018

Silica as the main raw materials processing products, are called Silica gel products. Silica gel is a porous material with different sizes of particles due to the proper dehydration of silicate gels. With open porous structure, can absorb many substances, is a good desiccant, adsorbent and catalyst carrier.

Silica as the main raw materials processing products, are called Silica gel products. Silica gel is a porous material with different sizes of particles due to the proper dehydration of silicate gels. With open porous structure, can absorb many substances, is a good desiccant, adsorbent and catalyst carrier. Silica gel adsorption is mainly physical adsorption, can be regenerated and reused. In alkali metal silicate (such as sodium silicate) solution to add acid, so that acidification, add a certain amount of electrolyte to stir, that is, the formation of silicic acid gel, or in a thicker sodium silicate solution add acid or ammonium salt can also produce silicate gel. The silicic acid gel will be placed for several hours to aging, and then wash away with hot water soluble salts, drying under 60~70℃ and in about 300 ℃ when activated, you can get silica gel. The silica gel is soaked in cobalt chloride solution and then dried and activated, which can be changed to the color-changing silicone.

Food-grade silica gel has non-toxic and tasteless, insoluble in water and any solvents, is a high activity of green products. Food grade silicone has inherent thermal stability ( -40℃-230℃). Suitable for different occasions. Products with good flexibility to meet different needs.


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