Fumed silica, commonly known as fumed silica, has become a core additive in various industries as a multi-functional high-performance nanomaterial with unique properties. Produced by high-temperature hydrolysis of halosilane in hydrogen-oxygen flame, it has a primary particle size of 5-40nm and is divided into hydrophilic and hydrophobic types according to surface treatment methods. It mainly acts as a thickener, thixotropic agent, anti-settling agent and reinforcing agent, playing a key role in many fields with high specific surface area and high surface reactivity. The global fumed silica market is growing steadily, with a market size of 1836 million US dollars in 2024. Emerging fields such as new energy batteries and electronic packaging have become growth engines. Industry competition focuses on technology, purity and energy consumption. Benefiting from policy support, domestic enterprises continue to make efforts in the construction of high-end production lines. The strength of Chinese manufacturing is rising rapidly, reshaping the global market pattern, and high-end ultra-high purity models have become the main track of industry competition.
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