What properties does silica powder have?

1. Good insulation: Due to the high purity of silicon powder, low impurity content, stable performance, and excellent electrical insulation properties, the cured product has good insulation properties and arc resistance.
2. It can reduce the exothermic peak temperature of the epoxy resin curing reaction, reduce the linear expansion coefficient and shrinkage rate of the cured product, thereby eliminating the internal stress of the cured product and preventing cracking.
3. Corrosion resistance: Microsilica powder is not easy to react with other substances and does not react chemically with most acids and alkalis. Its particles evenly cover the surface of objects and has strong corrosion resistance.
4. The particle gradation is reasonable, which can reduce and eliminate precipitation and stratification phenomena during use; it can enhance the tensile and compressive strength of the cured product, improve the wear resistance, increase the thermal conductivity of the cured product, and increase the flame retardancy. performance.
5. Silica powder treated with silane coupling agent has good wettability to various resins, good adsorption performance, easy mixing, and no agglomeration.
6. Microsilica powder is used as a filler and added to organic resin, which not only improves the properties of the cured product, but also reduces the product cost.