Iota Silicone Oil (Anhui) Co., Ltd
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Fumed silica (pyrogenic silica) and precipitated silica are two major types of white carbon black, differing in morphology and synthesis. Fumed silica is produced via flame hydrolysis of silicon tetrachloride, yielding a high-surface-area, branched structure ideal for thickening agents and free-flow aids. In contrast, precipitated silica has a more aggregated, porous structure, making it suitable for rubber reinforcement and food additives. Fumed silica excels in thermally stable applications like silicone elastomers, while precipitated silica dominates in tire manufacturing due to its cost-effectiveness and reinforcing efficiency. The choice between them hinges on specific performance requirements, such as transparency, viscosity control, or mechanical strength.
