I-Polyether ether ketone (PEEK) IiPropati kunye nosetyenziso

I-Polyether ether ketone (PEEK) i-polymer ye-organic thermoplastic engenambala kwintsapho ye-polyaryletherketone (PAEK), esetyenziswa kwizicelo zobunjineli.Yaziswa ekuqaleni yiVictrex PLC, emva koko i-Imperial Chemical Industries (ICI) ekuqaleni koo-1980.

Iinkcazelo ngeempawu:I-PEEK yi-semicrystalline thermoplastic eneempawu ezibalaseleyo zoomatshini kunye neekhemikhali zokuxhathisa ezigcinwa kumaqondo obushushu aphezulu.Iimeko zokucubungula ezisetyenziselwa ukubumba i-PEEK zinokuchaphazela i-crystallinity kwaye ngoko ke iipropati zomatshini.Imodyuli yoMncinci yi-3.6 GPa kunye namandla ayo okuqina angama-90 ukuya kwi-100 MPa.I-PEEK ineqondo lobushushu leglasi elimalunga ne-143 °C (289 °F) kwaye inyibilika malunga ne-343 °C (662 °F).Amanye amabakala anobushushu obusebenzayo obufikelela kuma-250 °C (482 °F).I-thermal conductivity inyuka phantse ngokuhambelana nobushushu phakathi kweqondo lokushisa kwegumbi kunye nobushushu be-solidus.Ixhathisa kakhulu ukuthotywa kwe-thermal, kunye nokuhlaselwa yi-organic and aqueous environments.Ihlaselwa yi-halogens kunye ne-Bronsted eqinile kunye ne-Lewis acids, kunye nezinye iikhompawundi ze-halogenated kunye ne-aliphatic hydrocarbons kumaqondo aphezulu.Inyibilika kwi-asidi ye-sulfuric egxininisiweyo kwiqondo lokushisa, nangona ukuchithwa kungathatha ixesha elide kakhulu ngaphandle kokuba i-polymer ikwimo enomlinganiselo ophezulu we-surface-area-to-volume ratio, njengomgubo ocolekileyo okanye ifilimu encinci.Inokuxhathisa okuphezulu kwi-biodegradation.

Usetyenziso:Ngenxa yokuqina kwayo, i-PEEK isetyenziselwa ukwenza izinto ezisetyenziswa kwizicelo ezifunwayo, kubandakanywa iibheringi, iinxalenye zepiston, iimpompo, iikholamu zechromatography yolwelo olusebenza ngokuPhezulu, iivalve zeplate yecompressor, kunye nokufakelwa kwentambo yombane.Yenye yeeplastiki ezimbalwa ezihambelana nosetyenziso lwevacuum ephezulu kakhulu.I-PEEK ithathwa njenge-biomaterial ephuculweyo esetyenziswa kufakelo lwezonyango, umz., ukusetyenziswa nge-high-resolution magnetic resonance imaging (MRI), ekudaleni ukhakhayi oluthatha indawo yenxenye kwizicelo ze-neurosurgical.

I-PEEK ifumana ukusetyenziswa okwandisiweyo kwizixhobo zokudibanisa umgogodla kunye neentonga zokuqinisa.Isetyenziswa kakhulu kwi-aerospace, i-automotive, kunye nemizi-mveliso yenkqubo yeekhemikhali.Amatywina e-PEEK kunye nee-manifolds ziqhele ukusetyenziswa kwizicelo zolwelo.I-PEEK iphinda iqhube kakuhle kwizicelo apho amaqondo obushushu aphezulu aqhubekayo (ukuya kuma-500 °F/260 °C) aqhelekile.