Superfine silica powderIt is made of natural quartz (SiO2) or fused quartz (amorphous SiO2 after high temperature melting and cooling of natural quartz), which is crushed, ball milled (or vibration, jet mill), flotation, pickling purification, high-purity water treatment, etc. Processed micro powder. Because of its excellent temperature resistance, acid and alkali corrosion resistance, poor thermal conductivity, high insulation, low expansion, and high hardness, it is one of the indispensable functional fillers in the electrical, electronic, and rubber industries. With the development of the silicon powder industry and the expansion of downstream industries, high-purity ultra-fine silicon powder has become a hot spot for industry development. Overview of ultrafine silica powder:

Classification of silicon powder: According to the application, silicon powder can be divided into ordinary silicon powder (PG), electrical grade silicon powder (DG), electronic grade silicon powder (JG); according to its particle shape, it can be divided into angular silicon powder and spherical silicon powder; among them Silica powder obtained by direct grinding with quartz ore or silica as raw material is called crystalline silica powder, and silicon powder obtained by grinding with fused silica as raw material is called fused silica powder (RG); after organic surface modification of the above-mentioned silicon powder They are called ordinary active silicon powder (PGH), electrical grade active silicon powder (DGH), electronic grade crystalline active silicon powder (JGH), electronic grade molten active silicon powder (RGH) and spherical silicon powder.

High-purity and ultra-fine silicon powder has become a hot spot in the development of the industry: ultra-fine silicon powder material is a new material that has gradually developed in recent years. Ultra-fine silicon powder has the characteristics of small particle size, large specific surface area, high chemical purity and good filling ability. With its superior stability, reinforcement, thickening and thixotropy, it has been widely used in many fields such as copper clad laminates, adhesives, rubber, coatings, engineering plastics, medicine, papermaking, daily chemicals and other related fields. The development of the industrial field provides the foundation and technical guarantee for new materials, and enjoys the reputation of "industrial MSG" and "the origin of material science".

Silicon micro-powder generally refers to silicon micro-powder with SiO2 content higher than 99.9%. It is mainly used in IC integrated circuits and quartz glass industries. Its products are widely used in large-scale and very large-scale integrated circuits, optical fibers, lasers, aerospace, military China is an indispensable and important material for high-tech industries. High-purity and ultra-fine silicon powder has become a hot spot for industry development. Some developed countries take it as a strategic goal to achieve it.

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