High-purity silica sol has a wide range of applications and there are many manufacturing companies in my country

Silica sol is a dispersion of nano-sized silica particles in water or solvent. According to different purity, it can be divided into three types: ultra-high purity silica sol, high-purity silica sol and ordinary silica sol. High-purity silica sol, also known as high-purity silica sol, refers to silica sol that does not contain impurities. High-purity silica sol has the characteristics of high specific surface area, high purity, good chemical stability, large pore size, and good adhesion. It is widely used in anti-corrosion materials, heat insulation materials, waterproof materials, refractory materials, electronic and electrical fields, etc.

Preparation methods for high-purity silica sol include sol-gel method, ion exchange method, electrolysis and electrodialysis method, elemental silicon dissolution method and dialysis method, etc. The sol-gel method refers to using sodium silicate to generate a silicate solution under the action of an acidic catalyst, and then through processes such as heating, crushing, drying, and calcination to obtain high-purity silica sol. This method has the advantages of easy control of parameters and good quality of finished products. It has the advantages of low operating cost and is the mainstream preparation method of high-purity silica sol.

Ultra-high purity silica sol is a high-end product of high-purity silica sol, which refers to silica sol with a silicon raw material purity of more than 99.999%. Ultra-high purity silica sol has excellent performance and is widely used in separation agents, catalysts, adsorbents and other products. In recent years, driven by downstream demand, the prosperity of my country’s ultra-high-purity silica sol industry has continued to increase. In 2022, my country’s ultra-high purity silica sol market will reach 3.67 billion yuan, a year-on-year increase of 18.6%.

According to the “2023-2028 China High Purity Silica Sol Industry Market In-depth Research and Development Prospects Forecast Report released by the Industrial Research Center , High-purity silica sol is widely used in anti-corrosion materials, heat insulation materials, waterproof materials, refractory materials, electronic and electrical fields, etc. In the field of anti-corrosion materials, high-purity silica sol can absorb moisture in the air to achieve anti-corrosion effects, and anti-mold bags, anti-mold boxes, etc. are its end products; in the field of thermal insulation materials, high-purity silica sol can be used to produce high-temperature insulation pipes, high-temperature insulation boards, etc.; in the field of waterproof materials, it can be used to produce waterproof coatings; in the field of electronics and electrical, high-purity silica sol can be used to produce CMP polishing fluid.

The major global manufacturers of high-purity silica sol include Fuso Chemical of Japan, Nouryon of the Netherlands, Evonik of Germany, Merck of Germany, NALCO of the United States, etc. my country is a major producer and consumer of high-purity silica sol in the world, with many manufacturing companies, including Nadi Microelectronics, Jingshi Nano-Xinanna Electronics, Kaisheng Technology, Akoli, etc. In the future, as the technological maturity of local enterprises increases, my country’s high-purity silica sol industry will develop in a high-quality direction.

          Industry analysts said that high-purity silica sol has a wide range of applications and the industry has good development prospects. my country is a major producer and consumer of high-purity silica sol in the world. Driven by market demand, the development space of my country’s high-purity silica sol industry continues to expand. It is expected that in the future, with in-depth research and technological advancement, my country’s market share of high-quality and high-purity silica sol will further increase.