Application in rubber without reinforcement of silicone rubber, the strength generally only 03MPa, almost unusable. To reach the level of practical application, it must be filled with modification. In a typical inorganic powder filler (calcium carbonate, precipitated silica, etc.), the best is fumed silica. After adding fumed silica, which can be increased up to 40 times the strength, modulus, yield point can be increased by 1O times, elongation, creep performance can be very significant improvement l. After the fumed silica filled micro interactions within the material it has undergone great changes, in addition to the presence of molecular chains caused by weak van der Waals forces between entangled macromolecular chains and due to mechanical force caused by mechanical entanglement outside , there is a strong interaction between the fumed silica aggregates of hydrogen bonds between the silica and polymer strong adsorption or bond linking adsorbed polymer Oita silica aggregate surface is stronger than between chains The entangled role in making the interfacial adhesion has been significantly improved, formed inside the silicon rubber polymer macromolecular chains through structural plate carbon black network, giving the material excellent overall performance. Application of sealants and adhesives in the field of silicone sealants and adhesives, fumed silica used as a thickener and thixotropic agents, can increase the bond strength to ensure the free flow of preventing agglomeration and during curing sagging, collapse scattered, depressed ultrafine silica quality, transparency, reinforcement, shear effects. Thickening and thixotropic fumed silica mechanism of action is when it is dispersed in sealants and adhesives ultrafine silica products, hydrogen interactions among the particles of ultrafine silica surface silanols by which, forming a network of ultrafine silica silica aggregates company that makes the system liquidity is limited, the viscosity increases. Play a thickening effect; subjected to shear force under the action of a silica network is damaged, resulting in decreased viscosity. Thixotropic effect occurs, to facilitate construction. Once the shear force removed, the structure of such a network may be re-formed, effectively prevent the plastic material during curing of sagging. Sales of ultrafine silica, ultra-fine silica, Weifang Weifang Fuyuan Fuyuan provided by the Environmental Protection Technology Co., Ltd. Weifang Fuyuan Environmental Technology Limited (www.wfdafuyuan.com) (www.wfdafuyuan.com) strong, credible, Shandong Weifang other industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Weifang Fuyuan into the brilliant and you work for a better future!