"After 20 years of arduous entrepreneurship and independent innovation, China's fumed silica industry has killed a blood path in the cracks of foreign giants, and has grown to become an important member of the international market, avoiding the market changes. Risk of supply cut off. "Cao Xianjun, chairman of the China Fluorosilicone Organic Materials Industry Association, said at the 20th Anniversary Commemorative Meeting of the Chinese Gas Phase White Carbon Black Innovation and Entrepreneurship held in Yichang on August 9. As an important raw material of organic silicon and a key link in the industrial chain, fumed silica has played a vital role in the development of China's organic silicon industry. Although its amount is not large, its role cannot be underestimated, especially for the silicone rubber industry. In terms of it, it has a similar role as a "chip" in the field of integrated circuits. Before 2000, there were only two companies in China supporting a small amount of fumed silica for the military industry, and they were of poor quality and backward technology. Wang Yuelin, then the deputy director and chief engineer of Guangzhou Baiyun Adhesive Factory, realized: "It is necessary to have its own fumed silica industry in order to stop breathing." Under his leadership, Guangzhou Baiyun Adhesive Factory was established The project team of gas phase silica was started and the innovation road of revitalizing gas phase silica industry was started. The road is thorny and difficult. At that time, because the gas phase method of carbon black was mainly used in the military industry, it was subject to a strict technical blockade. The R & D team did not flinch. They repeatedly contacted an expert from the Institute of Surface Chemistry of the National Academy of Sciences of Ukraine and bought the technology package from Ukraine after several twists and turns. The technical process in Ukraine uses silicon tetrachloride as the raw material, and the scale of the monomer unit is small. In order to adapt to the domestic raw material route and expand the scale, the project team improved the technical process day and night, and finally completed the process design for the production of gas phase white carbon black using monomethyltrichlorosilane as the raw material and expanded the capacity of a single unit 500 tons / year. In December 2001, China's first gas phase white carbon black production line with independent intellectual property rights was born, and China has also become the third country in the world to master the technology of producing gas phase white carbon black using monomethyltrichlorosilane as a raw material. Since then, China's gas phase method carbon black development team has insisted on self-reliance and hard work. From technology research and development to device construction, from surface modification to standard formulation, they have overcome various difficulties, such as process technology, engineering design, unexpected shutdowns, and suppression of foreign companies. They have cultivated China's gas-phase process carbon black industry from a weak child. A strong and energetic young man. A set of data shared by Cao Xianjun is enough to witness the glory of China's fumed silica industry: the total production of fumed silica in China from less than 1,000 tons / year in 2002 to 100,000 tons / year in 2018, achieving a hundred-fold increase ; Self-sufficiency rate from less than 40% in 2007 to full self-sufficiency of major varieties in 2010, and also exported to more than 50 countries and regions in the world, forming a market pattern that stands in line with Europe and the United States. Yichang Huifu Silicon Material Co., Ltd., the largest fumed silica manufacturer in China at present, started late, but achieved an annual output of 8,000 tons in 5 years, becoming the only one in China that has mastered the use of organic silicon monomers. And companies that produce gas phase silica by using the byproducts of the polysilicon production process as raw materials. Yichang Huifu has also advanced to the mid-to-high end of the industry, and has built a high-end hydrophobic vapor phase white carbon black production line with international advanced level, breaking the situation where this type of product has been monopolized by foreign companies for a long time. "The domestic gas-phase white carbon black enterprises represented by Yichang Huifu are rapidly rising, providing essential support for the healthy development of China's organic silicon industry, and avoiding the risk of supply interruption of key materials such as gas-phase white carbon black. It allows us to be indifferent in the new situation and not afraid of wind and rain. "Cao Xianjun said.