PEEK is a high temperature and high performance thermoplastic special engineering plastic. It has good mechanical properties and chemical resistance, wear resistance, water solution and other properties. It has a light weight, good self lubrication performance. Because of its excellent processing performance, it can fill carbon fiber, molybdenum disulfide and so on to further improve the lubrication and mechanical strength. The wide application space of PEEK engineering plastics involves the high-tech industrial fields such as aviation, machinery, electronics, chemical industry, automobile and so on. It can make high required mechanical parts, such as gear, bearing, piston ring, support ring, seal ring (letter), valve plate, wear-resistant ring, etc. The outstanding nature of PEEK materials is mainly manifested in the following aspects:
High temperature resistance
PEEK has higher glass transition temperature and melting point (334 C), which is one of the reasons why it can be used reliably in heat resistant applications. The load heat distortion temperature is as high as 316 C, and the continuous use temperature is 260 C.
mechanical properties
PEEK is a plastic with both toughness and rigidity and balance. In particular, its excellent fatigue resistance to alternating stresses is the most outstanding in all plastics and comparable to alloy materials.
Self lubrication
PEEK has outstanding slip characteristics in all plastics, and is suitable for strict use of low friction coefficient and wear resistance. In particular, carbon fiber and graphite each account for a certain proportion, and the self-lubricating property of the modified PEEK is better.
Chemical resistance (corrosion resistance)
PEEK has excellent chemical resistance. In ordinary chemicals, only concentrated sulfuric acid can be dissolved or destroyed, and its corrosion resistance is similar to that of nickel steel.
Flame retardancy
PEEK is a very stable polymer. 1.45MM thick sample can achieve the highest Flame Retardant standard without any flame retardant.
Peeling resistance
PEEK has good peeling resistance, so it can be made into thin wires or electromagnetic wires, and can be used in harsh conditions.
Fatigue resistance
PEEK has the best fatigue resistance in all resins.
Radiation resistance
The ability to resist gamma irradiation is strong, exceeding the best radiation resistance of polystyrene in general resin. It can be used as a high performance wire that can maintain good insulation when gamma radiation dose reaches 1100Mrad.
Water resistance
PEEK and its composites are not affected by the chemical effects of water and high pressure water vapor. The products made with this material can still maintain excellent properties in the continuous use of high temperature and high pressure water.
