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Polyetheretherketone (English poly-ether-ether-ketone, PEEK for short) is a polymer composed of repeating units containing one ketone bond and two ether bonds in the main chain structure. It is a special polymer material.
It has physical and chemical properties such as high temperature resistance and chemical corrosion resistance. It is a type of semi-crystalline polymer material with a melting point of 343°C, a softening point of 168°C, and a tensile strength of 132~148MPa. It can be used as a high-temperature resistant structural material and electrical insulation material. Can be combined with glass fiber or carbon fiber to prepare reinforced materials.
It can be mainly used in aerospace, automobile transportation, national defense and military, mechanized industry, energy, home appliances, electronic and electrical and medical equipment. However, in recent years, it has become famous as a special polymer material for 3D printing, which also makes PEEK Applications in the medical field are even more prosperous.

☆Mechanical properties: PEEK is a plastic with a balance of toughness and rigidity. In particular, its excellent fatigue resistance to alternating stress is the most outstanding among all plastics and is comparable to alloy materials.

☆Chemical resistance (corrosion resistance): PEEK has excellent chemical resistance. Among common chemicals, only concentrated sulfuric acid can dissolve or destroy it. Its corrosion resistance is similar to that of nickel steel.

☆Flame retardant: PEEK is a very stable polymer. A 1.45mm thick sample can reach the highest flame retardant standard without adding any flame retardants.

☆Fatigue resistance: PEEK has the best fatigue resistance among all resins.

☆Hydrolysis resistance: PEEK and its composite materials are not chemically affected by water and high-pressure water vapor. Products made of this material can still maintain excellent properties when used continuously in high-temperature and high-pressure water.