Silica Powder
Silica powder, also known as silicon powder and fumed silica, is a powdered silicon material prepared into micron level. Silica powder has the characteristics of high purity, low impurities, high fineness, good dispersibility and high activity. It is often used in the preparation of
high-performance materials, high-purity materials, optoelectronic materials, functional composite materials and other fields.
Micro Silica Powder
Micro silica powder is a non-metallic functional material made from electronic-grade high-purity silica as raw material through high-temperature reduction, mechanical grinding and other processes. Micro silica powder particle size is usually 0.1 ~ 1μm. It has low specific surface area, low specific surface area energy, low viscosity, high fluidity, UV resistance and other properties. It is widely used in electronic materials, precision ceramics, catalysts, plastics, rubber and other fields.
The difference between silica powder and microsilica powder
Different chemical compositions
Silica powder is produced by transporting silica (SiO2) through hydrogen (H2), heating it to a high temperature, reducing it to silicon element (Si), and then cooling it through hydrogen refinement processing. Micro silica powder is made of electronic grade High-purity silica (SiO2) is made by mechanical grinding after high-temperature reduction.
Different surface treatment methods
Silica powder often adopts surface treatment solutions, such as modified silica powder, coupling agents, etc., to improve the dispersion of silica powder in resin, rubber and other fields, strengthen its adhesion to the matrix, and increase its activity in materials; and Micro silica powder does not require surface treatment.
Different application fields
Silica powder is often used in thermosetting resins, rubber, printing and dyeing, building materials, coatings and other fields, mainly to improve material processing performance, increase material hardness, and improve lubricity; micro silica powder is mostly used in electronic materials, precision ceramics , catalysts, plastics, rubber and other fields, as fillers, tougheners and treatment agents.
Silica powder application
Silica powder has a wide range of applications, including:
(1) Thermosetting resin: Silica powder is often used as a filler in modified resin, which can improve the mechanical strength, heat resistance and aging resistance of the resin.
(2) Rubber: Silica powder can be used as a reinforcing agent to increase the strength, hardness and wear resistance of rubber.
(3) Printing and dyeing: Silica powder can be used as a component of printing and dyeing slurry, which can increase the brightness and uniformity of printing colors.
(4) Building materials: Silica powder can improve the mechanical properties of building materials and improve anti-penetration and crack resistance.
Micro silica powder application
Micro silica powder has a variety of applications, including:
(1) Electronic materials: Micro silica powder is often used to prepare capacitors, conductive adhesives, electronic interface materials, etc.
(2) Precision ceramics: Micro silica powder helps to improve the hardness, density, oxidation resistance and corrosion resistance of precision ceramics.
(3) Catalyst: Micro silica powder can be used as a catalyst carrier and plays a key role in chemical reactions.
(4) Plastics and rubber: Micro silica powder can increase the hardness, toughness and weather resistance of plastic and rubber products.
Although silica powder and microsilica powder look similar on the surface, there are certain differences in their preparation processes, chemical compositions and application fields. In practical applications, choosing the right material for processing is the key. Different types of silicon powder are widely used in different fields.
