Special engineering plastics with high temperature resistance and hardness

There are many kinds of engineering plastics with high temperature resistance. Relatively speaking, there are the following kinds of high temperature resistance: PEEK polyetheretherketone, PI polyimide, PPS polyphenylene sulfide, PTFE polytetrafluoroethylene, PPO polyphenylene ether, PA46 nylon 46 (nylon 46 is a patented product of DSM company in the Netherlands, which is quite special, and its temperature resistance has been greatly improved compared with other nylons. ) and so on.

The long-term temperature resistance of these materials is above 150 degrees. Short-term temperature resistance can reach more than 230 degrees, even more than 290 degrees.

In terms of hardness, it is not easy to compare, because most materials will add glass fiber, and the hardness depends on the amount added. For details, please refer to the physical attribute table of specific brands. However, among these materials, PPS has the lowest elongation at break and good rigidity and hardness.

The better the performance, the more expensive the material. For example, the price of PEEK per kilogram is 1000 yuan or more. So the specific application depends on the actual needs.