Polyether ether ketone: Difference between revisions

Revision as of 09:46, 19 October 2005

Revision as of 09:52, 19 October 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''' ('''PEEK'''), also referred to as '''[[polyketone]]s''', 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.

[[Image:peek.png]]

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 is used in bearings, piston parts, pumps, compressor plate valves, and cable insulation applications.

PEEK is a [[thermoplastic]] with extrordinary mechanical properties. The Young's Modulus is 3.6 GPa and its tensile strength 170 MPa.

PEEK is also considered an advanced biomaterial used in medical implants.

[[Category:Organic polymers]]

[[ar:PEEK]]