Polyether ether ketone (PEEK) Properties & Applications

Polyether ether ketone (PEEK) ndi polyether ether ketone (PEEK) ndi polyether organic thermoplastic polima mu banja la polyaryletherketone (PAEK), yomwe imagwiritsidwa ntchito popanga uinjiniya.Idayambitsidwa ndi Victrex PLC, kenako Imperial Chemical Industries (ICI) koyambirira kwa 1980s.

Katundu:PEEK ndi semicrystalline thermoplastic yokhala ndi zida zabwino kwambiri zamakina ndi mankhwala zomwe zimasungidwa kutentha kwambiri.Zomwe zimagwiritsidwa ntchito poumba PEEK zimatha kukhudza crystallinity ndichifukwa chake makina amakina.The Young's modulus ndi 3.6 GPa ndi mphamvu yake yokhazikika 90 mpaka 100 MPa.PEEK ili ndi kutentha kwa galasi lozungulira 143 ° C (289 ° F) ndipo imasungunuka mozungulira 343 ° C (662 ° F).Magiredi ena ali ndi kutentha kothandiza kwa ntchito mpaka 250 °C (482 °F).Thermal conductivity imawonjezeka pafupifupi mofanana ndi kutentha pakati pa kutentha kwa chipinda ndi kutentha kwa solidus.Imalimbana kwambiri ndi kuwonongeka kwa kutentha, komanso kuukira ndi madera a organic ndi amadzimadzi.Amawukiridwa ndi ma halogens ndi amphamvu a Bronsted ndi Lewis acids, komanso ma halogenated compounds ndi aliphatic hydrocarbons pa kutentha kwakukulu.Imasungunuka mu sulfuric acid yoyikira kutentha kwa firiji, ngakhale kusungunuka kungatenge nthawi yayitali pokhapokha polima ili mu mawonekedwe omwe ali ndi chiŵerengero chapamwamba chapamwamba, monga ufa wabwino kapena filimu yopyapyala.Ili ndi kukana kwakukulu kwa biodegradation.

Mapulogalamu:Chifukwa cha kulimba kwake, PEEK imagwiritsidwa ntchito popanga zinthu zomwe zimagwiritsidwa ntchito povuta, kuphatikiza ma bearings, pisitoni, mapampu, zipilala zamadzimadzi zowoneka bwino kwambiri, ma valve a compressor plate, ndi kutsekereza chingwe chamagetsi.Ndi amodzi mwa mapulasitiki ochepa omwe amagwirizana ndi ma vacuum apamwamba kwambiri.PEEK imatengedwa ngati biomaterial yotsogola yomwe imagwiritsidwa ntchito muzoyika zachipatala, mwachitsanzo, kugwiritsa ntchito chithunzithunzi chapamwamba cha maginito (MRI), popanga chigaza cholowa m'malo mwa neurosurgical application.

PEEK ikupeza kugwiritsidwa ntchito kowonjezereka pazida zophatikizira msana ndi ndodo zolimbitsa.Amagwiritsidwa ntchito kwambiri m'makampani opanga ndege, magalimoto, komanso mafakitale.PEEK zisindikizo ndi manifolds amagwiritsidwa ntchito kwambiri popaka madzimadzi.PEEK imachitanso bwino pamapulogalamu omwe kutentha kosalekeza (mpaka 500 °F/260 °C) kumakhala kofala.