Henan Superior Abrasives Import & Export Co., Ltd

Silica fume, also known as silica fume, scientific name silica fume, is made by the industrial electric furnace in the process of smelting industrial silicon and ferrosilicon at high temperature, and the smoke and dust escaping with the exhaust gas are collected and processed by a special trapping device. In the escaping soot, the SiO2 content accounts for about 90% of the total soot, and the particle size is very small, and the average particle size is almost nanometer, so it is called silicon powder.

quality

1. Good insulation: due to the high purity of silica powder, low impurity content, stable performance and excellent electrical insulation performance, the cured material has good insulation performance and anti-arc performance.
2. It can reduce the peak exothermic temperature of epoxy resin curing reaction, reduce the linear expansion coefficient and shrinkage rate of the cured object, so as to eliminate the internal stress of the cured object and prevent cracking.
3. Corrosion resistance: silica powder is not easy to react with other substances, and does not react chemically with most acids and alkalis, and its particles are evenly covered on the surface of the object, which has strong corrosion resistance.
4. The granular level is reasonable, which can reduce and eliminate precipitation and delamination when used; It can enhance the tensile and compressive strength of the cured object, improve the wear resistance, increase the thermal conductivity of the cured object, and increase the flame retardant performance.
5. The silica powder treated by silane coupling agent has good wettability to all kinds of resins, good adsorption performance, easy mixing, and no agglomeration.
6. Silica powder is added to the organic resin as a filler, which not only improves the performance of the cured object, but also reduces the product cost.