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Fumed silica with a PH value of 5-7, also known as fumed silica, has excellent reinforcement, thickening, thixotropy and other properties. It is widely used in industrial fields such as rubber, coatings, adhesives, inks, colloidal batteries, and composite insulators. Played an important role in the improvement of product performance.
White carbon black is roughly divided into precipitation method white carbon black and gas phase method white carbon black according to the production method. Fumed silica with a PH value of 5-7, also known as fumed silica, has excellent reinforcement, thickening, thixotropy and other properties. It is widely used in industrial fields such as rubber, coatings, adhesives, inks, colloidal batteries, and composite insulators. Played an important role in the improvement of product performance. The vapor-phase white carbon black is white amorphous flocculent translucent solid colloidal nanoparticles (particle size less than 100nm) under normal conditions, non-toxic, and has a huge specific surface area. The fumed white carbon black is all nano-silica, the purity of the product can reach 99%, and the particle size can reach 10-20nm. Precipitation white carbon black is divided into traditional precipitation white carbon black and special precipitation white carbon black. The former refers to silica produced with sulfuric acid, hydrochloric acid, CO2 and water glass as basic raw materials, and the latter refers to the use of super Silica produced by special methods such as gravity technology, sol-gel method, chemical crystal method, secondary crystallization method or reversed micellar microemulsion method. Precipitated silica is mainly used as a reinforcing agent for natural rubber and synthetic rubber, toothpaste friction agent, etc. Fumed silica is mainly used as a reinforcing agent for silicone rubber, as a thickener for coatings and unsaturated resins, while ultrafine silica gels and aerogels are mainly used as matting agents for coatings, thickeners, and plastic film opening agents.
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