Thermoplastic polyimide (TPI)
2023-04-11
Thermoplastic polyimide (TPI) is developed on the basis of traditional thermosetting polyimide (PI). Polyimide (PI) refers to a kind of heterocyclic polymer containing imine group in the main chain of macromolecule, and is one of the organic polymer materials with the best comprehensive performance. It has the characteristics of corrosion resistance, fatigue resistance, loss resistance, impact resistance, low density, low noise, long service life and excellent high and low temperature performance (long-term -269℃ ~ 280℃ deformation); Thermal decomposition temperature up to 600℃, so far is one of the polymers with the highest thermal stability. It has been widely used in aerospace, aviation, space, automotive, microelectronics, nano, liquid crystal, separation membrane, laser, electrical appliances, medical equipment, food processing and many other high-tech fields, known as "problem solver" and "gold plastic". However, the difficulty of processing and forming and the high cost of manufacturing have been two key factors restricting its rapid development. To overcome the thermosetting PI insoluble, not melting, difficult processing molding defects, and keep its good performance, America's general electric (GE) in the early 1970 s began to research and development of thermoplastic polyimide (TPI), implements the commercialized in 1982, and is subject to the goods brand Ultem first to market, is the world's capacity to each company, Benchmarking position in TPI industry.
