Precipitated silica, namely hydrated silicon dioxide, is silicon dioxide in the form of fine powder or ultra-fine particles. The high-purity type has a SiO2 content of up to 99.8%, with light weight, original particle size <0.0003mm, specific gravity of 2.319～2.653, and melting point of 1750℃. The classic manufacturing methods of precipitated silica are divided into three categories: fumed method, precipitation method and dissociation method.

Nano-silica prepared by the fumed method is the best filler for reinforcing high-temperature vulcanized silicone rubber, which indicates that silica aggregates dispersed to a scale of 100-200nm have a good reinforcing effect on silicone rubber. Adding nano-silica powder to silicone rubber forms a microcrystalline region with silica as the crystal nucleus, increases the number of physical cross-linking points, and makes crystallization more likely to occur.

Non-Dairy Creamer, also known as powdered oil, creamer or fat powder, is a high-grade raw material widely used in the food industry. It is made from refined hydrogenated vegetable oil, casein and a variety of food accessories through blending, emulsification, sterilization and spray drying. Its organizational structure is similar to milk powder, hence the name creamer.

Chinese researchers have turned waste into treasure and successfully extracted nano-silica, an indispensable material for manufacturing rubber and plastics, from rice husks. According to Professor Wang Zichen from the College of Chemistry, Jilin University, the inventor of this technology, rice husks contain a large amount of silicon and are difficult to degrade in soil.

Nano-silica is one of the high-tech ultra-fine inorganic new materials. Due to its very small particle size, it has a large specific surface area, strong surface adsorption capacity, high chemical purity, good dispersion performance, and unique properties in terms of thermal resistance and electrical resistance. With its superior stability, thickening and thixotropic properties, it has unique characteristics in many disciplines and fields.

Resin matrix composites have the characteristics of light weight, high strength and corrosion resistance, but in recent years, the material industry and the pillar industries of the national economy have put forward higher and higher requirements for the service performance of resin matrix materials. How to synthesize high-performance resin matrix composites has become an important issue in the current material industry and enterprise sector.

China is a major country in the production and consumption of coatings, but currently domestic coatings generally have problems such as poor suspension stability, poor thixotropy, poor weather resistance and poor scrub resistance, resulting in the need to import a large number of high-quality coatings every year. Some coating manufacturers in Shanghai, Beijing, Hangzhou, Ningbo and other places have the courage to innovate and successfully realized the application of nano-silica in coatings.

Replacing nano-Al2O3 with nano-SiO2 for ceramics and adding it to 95 ceramics can not only play the role of nano particles, but also act as particles of the second phase, which not only improves the strength and toughness of ceramic materials, but also enhances the hardness and elastic modulus of the materials, and the effect is more ideal than adding Al2O3. Using nano-silica to composite ceramic substrates not only improves the compactness of the substrates.

Although FRP products have the advantages of light weight, high strength and corrosion resistance, their own hardness is low and wear resistance is poor. Relevant experts added nano-silica to the gel coat resin by ultrasonic dispersion method, and conducted performance comparison experiments with the gel coat without nano-silica, and found that its Mohs hardness increased from the original 2.2 grade to 2.8~2.9 grade.

Antibacterial materials: Utilizing the huge specific surface area, surface multi-mesoporous structure, super strong adsorption capacity and strange physical and chemical properties of nano-silica, functional ions such as silver ions are uniformly designed into the mesopores on the surface of nano-SiOX and stabilized, successfully developing a high-efficiency, long-lasting, high-temperature resistant and broad-spectrum antibacterial nano antibacterial powder.