Polyether ether ketone (PEEK) shine polymer thermoplastic na halitta mara launi a cikin dangin polyaryletherketone (PAEK), ana amfani dashi a aikace-aikacen injiniya.Victrex PLC ne ya fara gabatar da shi, sannan Imperial Chemical Industries (ICI) a farkon 1980s.
Kaddarori:PEEK wani thermoplastic ne na semirystalline tare da ingantattun kayan juriya na inji da sinadarai waɗanda ke riƙe da yanayin zafi mai girma.Yanayin sarrafawa da ake amfani da shi don ƙirƙirar PEEK na iya yin tasiri ga crystallinity kuma saboda haka kayan aikin injiniya.Matsakaicin Matasa shine 3.6GPa kuma ƙarfin taurinsa 90 zuwa 100 MPa.[5]PEEK yana da zafin canjin gilashin kusan 143 °C (289 °F) kuma yana narkewa a kusa da 343 ° C (662 ° F).Wasu maki suna da zafin aiki mai amfani har zuwa 250 °C (482 °F).Ƙarƙashin zafin jiki yana ƙaruwa kusan layi tare da zafin jiki tsakanin zafin jiki da zafin jiki mai ƙarfi.Yana da matukar juriya ga lalatawar thermal, da kuma kai hari ta wurin matsugunan halitta da na ruwa.Ana kaiwa hari da halogens da Bronsted da Lewis acid mai ƙarfi, da kuma wasu mahadi masu halogenated da aliphatic hydrocarbons a yanayin zafi.Yana narkewa a cikin sulfuric acid mai daɗaɗɗa a cikin zafin jiki, ko da yake narkar da na iya ɗaukar lokaci mai tsawo sai dai in polymer yana cikin wani nau'i mai girman girman yanki-zuwa girma, kamar foda mai kyau ko fim na bakin ciki.Yana da babban juriya ga biodegradation.
Aikace-aikace:Saboda ƙarfinsa, ana amfani da PEEK don ƙirƙira abubuwan da aka yi amfani da su a aikace-aikace masu buƙata, gami da bearings, sassan piston, famfo, ginshiƙan ginshiƙan chromatography na ruwa mai ƙarfi, bawul ɗin farantin kwampreso, da murfin kebul na lantarki.Yana ɗaya daga cikin ƴan robobi da suka dace da aikace-aikacen miya mai ƙarfi.Ana ɗaukar PEEK a matsayin ci-gaba na biomaterial da ake amfani da shi a cikin kayan aikin likitanci, misali, amfani da babban hoton maganadisu na maganadisu (MRI), don ƙirƙirar kwanyar musanyawa a cikin aikace-aikacen neurosurgical.
PEEK yana samun ƙarin amfani a cikin na'urorin haɗakar kashin baya da kuma ƙarfafa sanduna.Ana amfani da shi sosai a cikin sararin samaniya, motoci, da masana'antar sarrafa sinadarai.Ana yawan amfani da hatimin PEEK da manifolds a aikace-aikacen ruwa.PEEK yana aiki da kyau a aikace-aikace inda ci gaba da yanayin zafi (har zuwa 500 °F/260 °C) ya zama gama gari.
Lokacin aikawa: Dec-24-2018