Semi crystalline poly (aryl ether ketone) polymer with ether bond and ketone group alternately linked with phenylene. Because the ratio of ether bond to ketone bond in the molecular structure of PEK is lower than that of PEEK, its melting point and glass transition temperature are higher than that of PEEK. The heat resistance is the highest among aromatic polyether ketone, and the long-term use temperature is 250 ° C.
Organic polymer materials -> Plastics