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The difference between silica and silica powder

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The main components of white carbon black and silicon powder are the same, both are silicon dioxide, both have stable properties, while white carbon black is made of silicon dioxide by vapor deposition method, the structure is different, so the effect is not the same same.

White carbon black:
The molecular formula SiO2 • nH2O has good activity and adsorption rate, good reinforcement effect, high insulation, insoluble in water and acids (except hydrofluoric acid), soluble in caustic soda, and does not decompose under high temperature. Its whiteness is good, filling the rubber can obviously improve the physical properties of the rubber, and it has become the best white reinforcing filler to replace carbon black. In addition to rubber products, it is also widely used in paint, ink, feed, pesticide, fire extinguishing agent, papermaking and other industries.

Silica powder:
Made from pure quartz powder through advanced ultra-fine grinding technology, it is an inorganic non-metallic material with a wide range of uses. It has the advantages of excellent dielectric properties, low thermal expansion coefficient, high thermal conductivity, and good suspension performance. Because of its excellent physical properties, high chemical stability, unique optical properties and reasonable and controllable particle size distribution, it is widely used in optical glass, electronic packaging, electrical insulation, high-grade ceramics, paint coatings, precision casting , Silicone rubber, medicine, cosmetics, electronic components and VLSI, mobile communications, laptop computers, aerospace and other production fields.

Fine silicon powder is also an important raw material for the production of polysilicon. The silicon fine powder is reacted with anhydrous hydrogen chloride (HCl) in a fluidized bed reactor to generate silicon trichlorohydrogen (SiHCl3). After further purification, SiHCl3 is reduced to deposit polysilicon in hydrogen. And polysilicon is the main raw material for solar cells in the photovoltaic industry. In recent years, the continued tension of global energy has made the vigorous development of solar energy the focus of energy strategies in various countries in the world. With the surge of the photovoltaic industry, the price of polycrystalline silicon, a raw material for solar cells, has skyrocketed. Supply shortage

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