Thermoplastic polyimide (TPI) has outstanding advantages in easy processing and my country’s self-sufficiency capacity is gradually increasing

Polyimide (PI) is an organic polymer material with excellent comprehensive properties. It is a special engineering plastic and is widely used in aerospace, electronic and electrical, liquid crystal display, new nanomaterials, separation and filtration and other fields. Due to the difficulty of polyimide processing and molding, thermoplastic polyimide (TPI) was developed based on thermosetting polyimide. Its performance is close to that of polyimide and it has outstanding advantages in easy processing.

In 2021, the global polyimide market will reach approximately US$8.78 billion; it is expected that the global polyimide market will grow at an average annual compound growth rate of approximately 4.6% from 2022 to 2027, and the market size will reach US$11.47 billion by 2027. Dollar. In 2021, China’s polyimide market size will be approximately US$860 million; it is expected that China’s polyimide market will grow at an average annual compound growth rate of approximately 5.3% from 20227 to 2027, and the market size will reach 1.17 billion by 2027 Dollar. It can be seen that China and the global polyimide market are developing well.

According to the “China Thermoplastic Polyimide (TPI) Industry Market In-depth Research and Development Prospects Forecast Report 2022-2027” released by the Industrial Research Center shows that thermoplastic polyimide has the characteristics of high elastic modulus, strong impact resistance, good heat resistance, good dimensional stability, good flame retardancy, excellent electrical insulation, chemical corrosion resistance, radiation resistance, etc. Compared with polyimide, thermoplastic polyimide has excellent processing properties. In addition to the traditional processing methods of thermosetting polyimide, it can also use extrusion molding, injection molding and other processing methods to manufacture parts with complex shapes. , can be formed in one go, and the product has high precision, but its strength and high temperature resistance are reduced. Thermoplastic polyimide can be widely used in aerospace, automotive transportation, electronic and electrical, precision machinery and other fields.

General Electric (GE) of the United States was the first company to develop thermoplastic polyimide. It was the first to commercialize it in the 1980s and is a representative company in the global thermoplastic polyimide industry. In addition to General Electric, foreign thermoplastic polyimide manufacturers include Japan’s Mitsui Chemicals, Japan’s Toray, Japan’s Kaneka, Japan’s Nitto Denko, and the United States’ DuPont. ), French Saint Gobain, Saudi Basic Industries (SABIC), etc.

Industry analysts said that my country’s thermoplastic polyimide industry started late, and early market demand relied entirely on imports, but the U.S. General Electric The second-generation thermoplastic polyimide is prohibited from being sold to China. However, my country’s electronics, machinery, automobile, aviation and other industries are developing rapidly and have strong demand for advanced materials. Therefore, independent production of thermoplastic polyimide must be achieved. Under this circumstance, my country’s investment in research and development of thermoplastic polyimide continues to increase, and its independent supply capability is gradually enhanced. At this stage, my country’s thermoplastic polyimide production companies mainly include Wanrun Co., Ltd., Zhongtiansheng New Materials, Hangzhou Plastics, etc., and the product performance of some companies has reached or is close to the international advanced level.