Polynitrosilane is a new type of cutting-edge material. The ceramic material prepared with polynitrosilane as a precursor has the properties of ultra-high temperature resistance, ultra-toughness, ultra-thin, ultra-corrosion resistance, and ultra-high strength.

Polysilazane (PSZ) is a class of inorganic polymers with Si-N bonds as repeating units in the main chain. Due to its special structure, polysilazane can be converted into SiCNO, SiCN or silica ceramics under high temperature conditions, and the hardness after curing can reach more than 8H. Polysilazane has excellent corrosion resistance, oxidation resistance, radiation resistance and high temperature resistance, and is widely used in aerospace, semiconductor, photovoltaic cells, high temperature coatings, ceramic materials, resin materials and other fields.

Polysilazane can be divided into two categories: organopolysilazane (OPSZ) and perhydrate polysilazane (PHPS). In the 1990s, it entered the stage of commercial development. Polysilazane synthesis methods include ammonia solution, aminolysis, hydrazine solution, ring-opening polymerization, dehydrogenation coupling, etc. With the deepening of research, the number of polysilazane synthesis methods will increase.

Polynitrosilane is a new type of cutting-edge material. The ceramic material prepared with polynitrosilane as the precursor has the properties of ultra-high temperature resistance, ultra-toughness, ultra-thinness, ultra-corrosion resistance, and ultra-high strength. In recent years, with the development of industrial technology, the demand for ceramic-based materials in the global market has been continuously released, which in turn drives the growth of demand for polynitrosilane. It is expected that the global polysilazane market will maintain a compound annual growth rate of more than 16.5% from 2022 to 2026. rate growth.

The preparation of polysilazane is technically difficult, and foreign companies monopolize the market. This product follows the relevant laws of the United States on trade and exports, and is banned from domestic sales. In recent years, in order to break the monopoly pattern of foreign companies and fill the gap in the domestic market, Chinese companies have carried out research on polysilazane technology and applications, and have achieved certain results.