PEEK high molecular polymer belongs to high temperature thermoplastic plastic, with a high glass transition temperature( 162℃ ) and melting point( 358℃ ), the load thermal deformation temperature is as high as332℃( 30% glass fiber or carbon fiber reinforced grade ), can be used for a long time at260℃, compared with other high temperature resistant plastics such asPPS, PTFE, PAI, PPU and other plastics, the upper temperature limit is nearly60℃ higher; PEEK resin not only has better heat resistance than other high temperature resistant plastics, but also has high strength, high modulus, high fracture toughness and excellent dimensional stability; PEEK resin can maintain high strength at high temperature, its bending strength at200℃ is about24MPa, and PEEK bending strength and compression strength at260℃ are still15~19MPa;PEEK resin has large rigidity, good dimensional stability, small linear expansion coefficient, very close to aluminum metal materials; has excellent chemical resistance, its corrosion resistance is similar to nickel steel, and it has flame retardancy itself, releasing less smoke and toxic gases under flame conditions, strong radiation resistance; PEEK resin has good toughness, excellent fatigue resistance to alternating stress, comparable to alloy materials; PEEK resin has outstanding tribological properties, excellent resistance to sliding wear and fretting wear, especially can maintain high wear resistance and low friction coefficient at256℃; PEEK is easy to extrude and injection molding, with excellent processing performance and high molding efficiency. In addition, PEEK also has good self-lubricating properties, easy processing, stable insulation, and excellent properties such as resistance to hydrolysis, comprehensive performance, good mechanical properties, high temperature resistance, and superior chemical resistance, making it a universal plastic.