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Properties of PEEK materials

发布日期:2018-06-21   浏览次数:2779

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 

performance 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.



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