Yintoni iPFA?
Igama lesiNgesi likaPFAyi: Polyfluoroalkoxy, igama lesiTshayina ngu: tetrafluoroethylene - perfluorinated alkoxy vinyl ether copolymer (ekwaziwa njenge: alkylates perfluorinated, soluble polytetrafluoroethylene)PFAi-resin yinto entsha ye-melt-processable fluoroplastics, i-PFA, i-FEP, i-PTFE iipropati zemichiza ziyafana, kodwa i-FEP ingasetyenziswa kuphela ngaphantsi kwe-200 degrees, i-PTFE ayinakutofwa.
1, Ubunzima obuthile: 2.13-2.167g / cm3
2, Ukubunjwa ukushwabana: 3.1-7.7%
3, iqondo lobushushu lokubumba: 350-400℃
4 、 Indawo yokunyibilika ye-PFA imalunga ne-580F kunye noxinzelelo yi-2.13- 2.16g/cc (g/cm3).
Iimpawu kunye nokusetyenziswa okuphambili kwePFA
I-PFA yaziwa ngokuqhelekileyo njenge-Fusible PTFE, kwaye iipropati zayo ezahlukeneyo ziphezulu kwi-fluoroplastics, kwaye ukusetyenziswa kwayo kufana ne-FEP.Isetyenziswa ngokubanzi kwishishini le-semiconductor, kunye nezonyango, iikhemikhali kunye ne-anti-corrosion, izithuthi kunye nezinye iindawo.
I-PFA ifumaneka kwifom ye-pellet yokubumba kunye ne-extrusion, ifom ye-powder yokubumba kunye nokugquma, kunye neemveliso ezigqityiweyo ezifana neefilimu, amashiti, iintonga kunye ne-tubing.I-resin ye-PFA esasazwa kwiimarike zase-US yi-brand ye-Teflon esuka kwi-DUPOut, i-brand ye-Neoflon esuka kwi-Daikin, i-brand ye-Hthen evela e-Ansimont, kunye ne-brand ye-Hostafl evela kwi-HOechst Celanese.
1, Usetyenziso oluphambili lwePFA.
①.Ilungele ukuveliswa kwamalungu anganyangekiyo ku-corrosion, iindawo ezikwaziyo ukunxiba, izitywina, iindawo zokugquma kunye nezixhobo zezixhobo zonyango.
②.Iingcingo zobushushu obuphezulu kunye nokugqunyelelwa kwentambo, izixhobo zokulwa nomhlwa, izinto zokutywina, iimpompo zempompo kunye neevalvu, kunye nezikhongozeli zeekhemikhali.
2. Ukwenza umsebenzi
①.Izinto zeCrystalline, ukufunxa okuncinci kokufuma.Inokucutshungulwa kwiimveliso ngeendlela eziqhelekileyo ze-thermoplastic processing.
②.Ukungahambi kakuhle, kulula kakhulu ukubola, ukubola kuvelisa igesi enobungozi.Ukushisa kokubumba akufanele kudlule i-degrees ezingama-475, isikhunta kufuneka sitshiswe kwi-150-200 degrees, kwaye inkqubo yokuthululela kufuneka ibe nokuchasana okuphantsi kokuhamba kwezinto.
③.Iigranule eziguquguqukayo, inaliti kunye nokubumba okuphumayo.Ubushushu bokubumba i-350-400 degrees, ngaphezu kwe-475 degrees kulula ukubangela ukuguquka kwebala okanye amaqamza.Kwaye qaphela ukuba kuya kuba nzima ngakumbi ukuyidiliza.
④.Ngenxa yokuba izinto ezityhidiweyo zinefuthe elibi kwisinyithi, imveliso yexesha elide, ukungunda kufuna unyango lwe-chromium plating.
Ukusebenza kwezinto eziphathekayo
I-1, i-PFA yi-copolymer encinci ye-perfluoropropyl perfluorovinyl ether kunye ne-polytetrafluoroethylene.I-Melt bonding iphuculwe, i-viscosity yesisombululo iyancitshiswa, ngelixa ukusebenza kungatshintshi xa kuthelekiswa ne-PTFE.Le resin inokucutshungulwa ngokuthe ngqo kwiimveliso ngendlela eqhelekileyo yokubumba i-thermoplastic.
I-2, ubushushu bokusetyenziswa kwexesha elide - 80 - 260 degrees, inokumelana neekhemikhali ezigqwesileyo, ukuxhathisa ukubola kuzo zonke iikhemikhali, i-coefficient ephantsi yokukhuhlana kwiplastiki, kukho iimpawu ezintle zombane, ukugquma kombane akuchaphazeli ubushushu, "ukumkani weplastiki" wabiza.
I-3, ukuxhathisa kwayo kweekhemikhali kunye ne-PTFE efanayo, ingcono kune-vinylidene fluoride.
I-4, ukuxhathisa kwayo kunye nokunyanzeliswa kwayo kungcono kune-PTFE, amandla aphezulu, ukunyusa ukuya kwi-100-300%.Iipropathi ezilungileyo ze-dielectric, ukumelana nemitha ebalaseleyo.
I-5, I-non-toxic: inert ye-physiologically, inokufakwa emzimbeni womntu.
Ixesha lokuposa: Nov-18-2022