What materials do special plastics refer to?

Special engineering plastics are a new generation of high-performance polymer materials developed due to the social needs of the arms race during the Cold War. It used to be called high temperature resistant polymer material in the early days, but now it is usually called super engineering plastic or high performance polymer.

The so-called special engineering plastic refers to a new type of high-performance polymer material developed after ordinary plastics and engineering plastics, which has many characteristics that other materials do not have, such as high temperature resistance, fatigue resistance, corrosion resistance, wear resistance, radiation resistance, high strength, high toughness, excellent electrical properties and good dimensional stability. , whether for national defense, aviation, aerospace, shipbuilding and other fields, or for electrical appliances, electronics/communications, automobiles.

From the advent of polyimide (PI) in the 1960s to the commercialization of PEEK in the early 1980s, the main varieties successfully developed and industrialized are: 1. PI； 2. Polyamideimide (PAI); 3. Polyether imide (PEI); 4. Polyaryl compound (U- polymer); 5. Polyphenylene sulfide (PPS); 6. Polysulfone 7. Polyether sulfone; 8. Polyether ether ketone, etc.