Polyether ether ketone: Difference between revisions

Revision as of 01:12, 18 April 2005

Revision as of 18:12, 18 April 2005

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:''This article is about the resin. For the BASIC programming language function, see [[PEEK and POKE]]''.

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Polyetheretherketones, also referred to as polyketones, are obtained from aromatic dihalides and bisphenolate salts by nucleophilic substitution. The bisphenolate salt is formed "in situ" from bisphenol and either added sodium or added alkali metal carbonate or hydroxide.

'''PEEK''' is a family of [[thermoplastic]] [[resin]]s, of type [[polyetheretherketone]]. PEEK is a registered [[trademark]] of [[Victrex plc]], the principal developer and manufacturer. PEEK resins are used in medical and chemical instrumentation, due to their extraordinary solvent resistance (comparable to [[PTFE]]) and physical strength. [[Tubing]] and [[fittings]] for [[high-pressure liquid chromatography]] are often made of PEEK.

[[Image:peek.png]]

==External link==

*[http://www.victrex.com Victrex' website]

PEEK is partially crystalline, and has a glass transition temperature of 143 °C and a melting temperature of 334 °C. The material is resistant to both organic and aqueous environments, and are used in bearings, piston parts, pumps, compressor plate valves, and cable insulation applications.

[[Category:Organic polymers]]