ceramic precursors and resin materials are the main application areas of polysilazane
Polysilazane, that is, silazane polymer, is a type of inorganic polymer with Si-N bond as the repeating unit in the main chain. Polysilazane was discovered in the early 1920s and entered the stage of commercial development in the 1950s. Since then, its technology and application research has been intensified. At this stage, ceramic precursors and resin materials are the main application areas of polysilazane.
 
　　Ceramic precursor is an important application market for polysilazane. Polysilazane has a special chemical structure and can be pyrolyzed into ceramic materials under high temperature conditions, such as silicon dioxide (SiO2) ceramics, silicon carbide nitride (SiCN) ceramics, SiCNO ceramics, etc., and can be widely used in binders, Ceramic coatings, ceramic fibers, ceramic membranes, ceramic matrix composite materials, porous ceramics, micro-motor MEMS components and other fields. In the field of resin materials, polysilazane is mainly used as a resin matrix for the field of resin modification. There are relatively few research results in this field.
 
According to the "In-depth market research and investment strategy recommendation report for the polysilazane industry for 2021-2025" released by the New Sijie Industry Research Center, with the continuous advancement of industrial technology, the demand for new materials in the global market continues to rise, ceramic-based materials Ushering in development opportunities, it is good for the development of the polysilazane industry. In 2020, the global polysilazane market will be approximately 18.7 billion yuan. It is estimated that from 2020 to 2025, the global polysilazane market will continue to grow rapidly at an average annual compound growth rate of about 16.3%, and the market size will reach about 39.8 billion yuan by 2025.
 
The preparation method of polysilazane is mainly: take methyldichlorosilane and ammonia as raw materials, react in the presence of toluene, and then add sodium amide as a catalyst for polymerization reaction; use hexamethyldisilazane, chlorine Silane monomer is used as a raw material, and it is prepared by chlorine exchange reaction. At this stage, there are still technical bottlenecks in the global polysilazane preparation process, and polysilazane is more active in nature, and storage and transportation are more difficult. Therefore, compared with similar polymer polysiloxanes, the market scale of polysilazane is small.
 
However, polysilazane is an important ceramic precursor, which can develop a variety of ceramic-based materials. Many countries around the world pay attention to it. Therefore, its series of products are increasing, and new products are constantly coming out, such as perhydropolysilazane. , Polyurea Silazane, etc., making its application fields continue to expand. In this context, although the global polysilazane market is small, its market will show rapid growth in the next five years. Globally, the German Merck Group (Merck KGaA) is a leading producer of polysilazane, and its market share is much higher than that of other companies.
 
Industry analysts in New Thinking said that polysilazane can be converted into ceramic materials by high-temperature pyrolysis and is an important ceramic precursor. With the rapid development of the new material industry and the growing demand for ceramic-based materials, its market space continues to grow. expand. In the global polysilazane market, Merck is in a leading position with a high market share. my country's research in polysilazane technology and application fields is also constantly deepening, but compared with Germany, its research capabilities are weak, and the industrialization of research results is insufficient, and there is still much room for improvement in the future.