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POLYETHER-ETHERKETONE (PEEK)

PEEK is a high temperature-resistant thermoplastic suitable for wire coating, injection molding, film, and advanced structural composites.  The material has good engineering properties, that is, tough, strong, rigid and creep resistance. The material also resists a wide range of solvents and exposure to radiation.

Applications include wire and cable coatings, automotive engine parts, aerospace components, bearings, woven monofilament and film.

PEEK  resins are marketed by ICI Advanced Materials Group under the Victrex tradename in unreinforced, 20 and 30% glass-fiber-reinforced, and 30% carbon-fiber-reinforced grades. 

PEEK resins can be molded or extruded in conventional thermoplastic processing equipment at 660 to 750^o F. Mold shrinkage is about 1% for the unreinforced polymer and 0.1 to 1.4% for the reinforced grades, depending on fiber orientation.

PROPERTIES

The wholly aromatic structure of PEEK contributes to its high-temperature performance.  And its crystalline character gives it resistance to organic solvents, resistance to dynamic fatigue and retention of ductility on short-term heat aging. Molded PEEK components absorb much less water than many other thermoplastics.