application of Silica Gel 2023-03-21
Silica gel (Silica Gel) is a granular porous silicon dioxide hydrate, which is obtained by adding acid to sodium silicate and then washing and drying. It is mainly used as a desiccant and an adsorbent in column chromatography and thin layer chromatography. Although it is called "glue", it is actually a solid with a transparent or milky white appearance. Silicone rubber is sometimes called silica gel, but it is actually completely different from silicon-containing compounds in terms of properties and uses. Silicone is resistant to high and low temperatures and can be used between -40 and 230 degrees. The material is soft, stable, resistant to falling, not easy to deform, and easy to clean, so it is widely used in daily life. The following is a list of common silicone products in daily life:
1. Toy manufacturing: easy to dye, can be sterilized at high temperature, very good tensile strength, not easy to deform, non-toxic and harmless, harmless to children, it is an ideal raw material for toy making.
2. Silicone protective cover: commonly used in music players, mobile phones, PSP, digital cameras, GPS and other common personal consumer electronics products.
3. Kitchen utensils: Baking mats, cake baking pans, elastic baking pans, baking pan molds, pressure cookers, sealing rings on rice cookers, sealing rings inside lunch boxes, etc.
4. Food mold: Made of high-quality silicone, which has passed the FDA food-grade certification. It is a kind of environmentally friendly silicone, non-toxic and odorless, and can be used in the manufacture of food molds such as candy molds, chocolate molds, cake molds, silicone ice trays, and silicone pacifiers.