The application prospect of angular silicon powder is broad, but the development of the industry is still facing challenges
According to the different shape of powder particles, silica powder can be divided into two types: angular silicon powder and spherical silicon powder. Angular silica powder refers to the crystalline form of angular or polyhedral silica powder. Horn-shaped silica powder contains a large number of oxidizing groups and substituent groups, which has the advantages of high strength, good hydrophilicity, large specific surface area, wide particle size distribution range and high surface activity, and is widely used in electronic and electrical, construction engineering and other fields.
In terms of subdivided products, according to different crystallization characteristics, angular silicon powder can be divided into molten silicon powder and crystalline silicon powder. Compared with crystalline silicon powder, molten silicon powder has the advantages of low thermal expansion coefficient, low dielectric constant and low density, and is widely used in the field of electronic packaging materials.
In terms of preparation methods, grinding is the key link in the preparation of angular silica powder, which can be subdivided into dry and wet methods. Dry grinding is widely used in the preparation of angular silica powder, which first uses a ball mill to crush the raw materials, and then through vibration, coarse grinding, classification, fine grinding and other processes to obtain the finished product. In recent years, with the advancement of technology, the output and quality of continental ball mills have been continuously improved, which will provide favorable conditions for the development of angular silicon powder industry.
According to the "2024-2029 China Angular Silicon Powder Industry Market In-depth Research and Development Prospect Forecast Report" released by the Xinsijie Industry Research Center, in terms of application fields, angular silicon powder has broad application prospects in the fields of electronic and electrical and construction engineering. In the field of electrical and electronics, angular silicon powder is an important raw material for epoxy molding materials, which can be used to produce electronic component shells, and in the field of construction engineering, it can be used to produce concrete admixtures and coating additives.
In terms of market competition, the main manufacturers of angular silicon powder in mainland China include Novoray New Materials and Jacques Technology. Novoray focuses on the R&D, production and sales of micron-level spherical inorganic powders, micron-sized and sub-micron-level angular powders, and is a leading enterprise of angular silicon powder in mainland China, according to its corporate annual report, the company's angular inorganic powder will achieve revenue of 230 million yuan in 2023.
Although the application prospect is broad, the development of the mainland angular silica powder industry still faces certain challenges. As a high-performance silica powder, spherical silicon powder has the advantages of good dimensional stability, high purity and good dielectric properties, and will become an alternative product of angular silicon powder in the future.
Industry analysts said that angular silicon powder, as a representative product of silicon powder, is widely used in many fields. In terms of market competition, the concentration of the mainland angular silica powder industry is relatively high, and the leading enterprises occupy a dominant position in the market. However, at present, the development of the mainland angular silica powder industry is facing the threat of substitutes, and local enterprises urgently need to increase R&D investment in the future to improve product performance.