Polyether ether ketone (PEEK) imhando isina ruvara organic thermoplastic polymer mumhuri ye polyaryletherketone (PAEK), inoshandiswa mukugadzira mainjiniya.Yakatanga kuunzwa neVictrex PLC, ipapo Imperial Chemical Industries (ICI) mukutanga kwema1980.
Properties:PEEK ndeye semicrystalline thermoplastic ine yakanakisa mechaniki uye makemikari kuramba zvimiro zvinochengetwa kune yakanyanya tembiricha.Mamiriro ekugadzirisa anoshandiswa kuumba PEEK anogona kukanganisa crystallinity uye nekudaro ma mechanic properties.The Young's modulus ndeye 3.6 GPa uye simba rayo rekusimba 90 kusvika 100 MPa.[5]PEEK ine tembiricha yegirazi inotenderedza 143 °C (289 °F) uye inonyunguduka kutenderera 343 °C (662 °F).Mamwe magiredhi ane tembiricha inoshanda inoshanda inosvika 250 °C (482 °F).Iyo thermal conductivity inowedzera zvakada kuita mutsara netembiricha pakati pekamuri tembiricha uye solidus tembiricha.Iyo inopesana zvakanyanya nekupisa kwekupisa, pamwe nekurwisa nezvose organic uye aqueous nharaunda.Inorwiswa nema halogens uye yakasimba Bronsted uye Lewis acids, pamwe chete nemamwe ma halogenated compounds uye aliphatic hydrocarbons pakupisa kukuru.Inonyungudika mucocentrated sulfuric acid patembiricha yekamuri, kunyangwe kunyungudika kunogona kutora nguva yakareba kwazvo kunze kwekunge polima iri muchimiro chine chiyero chepamusoro-nzvimbo-kusvika-vhoriyamu, sehupfu hwakatsetseka kana firimu rakatetepa.Iine kupikisa kwakanyanya kune biodegradation.
Applications:Nekuda kwekusimba kwayo, PEEK inoshandiswa kugadzira zvinhu zvinoshandiswa mukuda maapplication, zvinosanganisira mabearings, piston parts, pombi, High-performance liquid chromatography columns, compressor plate valves, uye magetsi ekuvhara tambo.Ndiyo imwe yemapurasitiki mashoma anoenderana ne-ultra-high vacuum application.PEEK inoonekwa seyakakura biomaterial inoshandiswa mukudyara kwekurapa, semuenzaniso, shandisa ine yakakwirira-resolution magineti resonance imaging (MRI), yekugadzira chikamu chinotsiva dehenya muurourosurgical application.
PEEK iri kuwana yakawedzera kushandiswa muspinal fusion zvishandiso uye ekusimbisa tsvimbo.Inoshandiswa zvakanyanya muaerospace, mota, uye makemikari process maindasitiri.PEEK zvisimbiso uye manifolds anowanzo shandiswa mukushandisa mvura.PEEK inoitawo zvakanaka muzvishandiso uko kunoramba kuchikwira tembiricha (kusvika ku500 °F/260 °C) kwakajairika.
Nguva yekutumira: Dec-24-2018