In plastics and other polymer blends. Fumed silica can be added to improve the compatibility of the two phases. As to the Ps and PP blends, styrene or methyl chloride was added by silane-modified fumed silica ultrafine silica products, and can reduce the interfacial tension between phases, so that the cloud point temperature drop, improve both compatibility. Add fumed silica in the epoxy resin can significantly improve their brittleness, stiffness and strength can overcome the material to reduce defects caused elastomer toughening high silica ultrafine sales, to achieve the purpose of toughening. When the dosage 3wt%, the impact strength of the composite system can be increased by 40%, the tensile strength by 21%. If by coupling of nano-silica was modified so that it can be 124% and toughness, tensile properties increased by 30%, In addition, the hardness, wear resistance, heat resistance and insulation properties of the article is improved. Silica used in the manufacture of flat glass, glass, foundry sand, glass fibers, ceramic enamels, rust-proof large company of ultrafine silica sand, filtering sand, flux, refractories and a lightweight bubble concrete. Silica is widely used. Sales of ultrafine silica high | Weifang Fuyuan (certified) | ultrafine silica provided by the Environmental Protection Technology Co., Ltd. Weifang Fuyuan. Weifang Fuyuan Environmental Technology Limited (www.wfdafuyuan.com) (www.wfdafuyuan.com) Shandong Weifang, other leaders, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer demand. In Weifang Fuyuan leadership with the staff warmly welcome all inquiries negotiations to create Weifang Fuyuan better future.