At present, peek
is sometimes used in disinfection cabinets and wireless verification systems, which is equivalent to the effect of stainless steel. It is a high-temperature resistant thermoplastic, has a high glass transition temperature (143℃) and melting point (334℃), and the load thermal deformation temperature is as high as 316℃ (30% glass fiber or carbon fiber reinforced grades), and can be kept at 250℃ for a long time. Compared with other high-temperature resistant plastics such as PI, PPS, PTFE, PPO, etc., the upper limit of use temperature is nearly 50℃ 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 temperatures. Its bending strength at 200°C is about 24MPa, and the bending strength and compressive strength at 250°C are still 12～13MPa; PEEK The resin has higher rigidity, better dimensional stability, and lower coefficient of linear expansion, which is very close to that of metal aluminum; it has excellent chemical resistance. Among ordinary chemicals, only concentrated sulfuric acid can dissolve or destroy it. Corrosion resistance is similar to that of nickel steel. At the same time, it has flame retardancy, releases less smoke and toxic gases under flame conditions, and has strong radiation resistance; PEEK resin has good toughness and excellent fatigue resistance to alternating stress. The most outstanding plastic, comparable to alloy materials; PEEK resin has outstanding tribological properties, excellent sliding wear resistance and fretting wear performance, especially can maintain high wear resistance and low friction coefficient at 250 ℃; PEEK
resin is easy to extrude and injection molding, has excellent processing performance and high molding efficiency.