Polyether ether ketone: Difference between revisions

Revision as of 14:51, 28 April 2023

Revision as of 02:11, 7 May 2023

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|footnotes=<ref>A. K. van der Vegt & L. E. Govaert, Polymeren, van keten tot kunstof, {{ISBN|90-407-2388-5}}.</ref>

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'''Polyether ether ketone''' ('''PEEK''') is a beigecolourless [[organic compound|organic]] [[thermoplastic]] [[polymer]] in the [[polyaryletherketone]] (PAEK) family, used in engineering applications. The polymer was first developed in November 1978,<ref>{{Cite web|title=Victrex celebrates 40 years of PEEK success|url=https://www.victrex.com/en/news/2018/11/40-years-of-peek-success|access-date=2021-11-01|website=Victrex|language=en}}</ref> later being introduced to the market by Victrex PLC, then [[Imperial Chemical Industries]] (ICI) in the early 1980s.<ref>{{cite web|url=http://drakeplastics.com/peek/|title=Why PEEK?|website=drakeplastics.com|access-date=23 April 2018}}</ref>

==Synthesis==

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==Applications==

PEEK is used to fabricate items for demanding applications, including [[Bearing (mechanical)|bearings]], [[piston]] parts, [[pumps]], [[high-performance liquid chromatography]] columns, compressor plate [[valves]], and [[electrical cable]] [[Electrical insulation|insulation]]. It is one of the few plastics compatible with [[ultra-high vacuum]] applications, which makes it suitable for aerospace, automotive, and chemical industries.<ref name=":0">{{Cite web|title=PEEK (Polyether Ether Ketone)|url=http://www.scientificspine.com/spinal-materials/peek.html|website=www.scientificspine.com|access-date=2020-05-06}}</ref> PEEK is used in [[medical implant]]s, for example in creating a partial replacement skull in neurosurgical applicationapplications. PEEK is used in dentistry for example Customised dental implant, Fixed and removal dental prosthesis, Denture, for replacing missing teeth.

PEEK is used in [[spinal fusion]] devices and reinforcing rods.<ref name="space probe use">{{cite web|last=Lauzon|first=Michael|title=Diversified Plastics Inc., PEEK playing role in space probe|url=http://www.plasticsnews.com/article/20120504/NEWS/305049956|work=PlasticsNews.com|publisher=[[Crain Communications Inc]]|date=May 4, 2012|access-date=May 6, 2012}}</ref> It is [[Radiodensity|radiolucent]], but it is hydrophobic causing it to not fully fuse with bone.<ref name=":0" /><ref>{{Cite web|title=10 Porous TLIF cages to Know...!|url=http://www.thespinemarketgroup.com/10-porous-tlif-cages-to-know/|date=2020-02-01|website=SPINEMarketGroup|language=en-US|access-date=2020-05-06}}</ref> PEEK seals and manifolds are commonly used in fluid applications. PEEK also performs well in high temperature applications (up to 500&nbsp;°F/260&nbsp;°C).<ref>{{cite web|title=Properties of PEEK Material|url=http://www.uplandfab.com/peek-machining|website=www.uplandfab.com}}</ref> Because of this and its low thermal conductivity, it is also used in [[fused filament fabrication]] (FFF) printing to thermally separate the hot end from the cold end.