The application of the coating is coating production and consumption country, silicon dioxide, but the prevalence of current coating suspension stability, thixotropic, weather resistance, scrub poor performance problems, etc., resulting in a year to import large quantities of high-grade paint . Join in the paint a little fumed silica, providing anti-caking, anti-sagging, emulsification, extinction, suspension, thickening and thixotropic functions. In the copper-based conductive composite system, the conductive particles are suspended and dispersed in a binder resin, due to differences in the relative quality of the two (copper is 8.9, the resin is 1.1), the difference in surface properties, the conductive particles often tend to precipitate state. Especially during storage, the metal particles tend to flocculate and settle to the bottom of the container to produce precipitation, severe reunion into lumps difficult to disperse, resulting in products scrapped. Therefore must join anti-settling agent storage. Conductive powder can greatly limit settlement fumed silica can play a good role in the anti-Shen copper composite conductive system, which amounts up to 1.5%. Folding chemical properties and chemical properties stable. Do not dissolve in water nor reaction with water. It is an acidic oxide, not with general acid. Gaseous hydrogen fluoride reacts with silica gaseous silicon tetrafluoride. Alkali with hot or molten alkali silicates and water produced by the reaction. With more metal oxides at high temperature reaction silicates. For the manufacture of quartz glass, optical instruments, chemical containers, ordinary glass, refractory materials, optical fiber, silica manufacturers, ceramics and the like. The nature of the silica inert, it does not fluorine, hydrogen fluoride other than halogen, hydrogen halide and sulfuric acid, nitric acid, perchloric acid effect (except hot concentrated phosphoric acid). Common concentrated phosphoric acid (or pyrophosphate) etching silicon dioxide at high temperatures can generate heteropolyacids [2], the sales of silica, fused borates or boric anhydride can corrode silica at high temperatures, silica companies, in view of this property, borate can be used in the firing of ceramic flux, in addition to hydrogen fluoride can be dissolved silica acid, soluble in water to generate the fluorosilicic acid: ? SiO + 4HF = SiF4 ↑ + 2H quality O silica |? Weifang Fuyuan (certified) | 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.