PTFE board (tseem hu ua PTFE board, Teflon board, Teflon board) muab faib ua ob hom: molding thiab tig.Nws cov khoom siv dav siv thiab muaj cov khoom zoo tshaj plaws: siab thiab kub tsis kam (-192 ° C-260 ° C), corrosion kuj (muaj zog acid, muaj zog alkali, aqua regia, thiab lwm yam), huab cua tsis kam, rwb thaiv tsev siab, siab lubrication, tsis-adhesion, Non-toxic thiab lwm yam zoo heev yam ntxwv.Polytetrafluoroethylene (Lus Askiv abbreviation yog Teflon lossis [PTFE, F4]), lub npe hu ua "Plastic King", Suav lub npe "Teflon", "Teflon" (teflon), "Teflon", "Teflon", "Teflon" thiab lwm yam.
Nws yog lub siab molecular compound polymerized los ntawm tetrafluoroethylene, thiab nws cov qauv yooj yim yog -[-CF2-CF2-]n-, uas muaj tshuaj lom neeg ruaj khov thiab corrosion kuj (polytetrafluoroethylene yog hu ua PTFE lossis F4 , yog ib qho ntawm feem ntau corrosion. -Cov ntaub ntawv pov thawj nyob hauv lub ntiaj teb niaj hnub no, "Plastic King" feem ntau hu ua polytetrafluoroethylene, nws yog cov yas uas muaj kev tiv thaiv corrosion zoo tshaj plaws.Nws tsis cuam tshuam los ntawm cov kua qaub, alkalis, ntsev, oxidants Corrosion, txawm tias aqua regia tsis muaj dab tsi ua. Nrog nws, yog li nws yog lub npe hu ua yas huab tais, nws yog resistant rau tag nrho lwm yam tshuaj tshwj tsis yog molten hlau sodium thiab kua fluorine. Tsis nplaum, hluav taws xob rwb thaiv tsev thiab zoo aging kuj, zoo heev kub kuj (tuaj yeem ua hauj lwm rau lub sij hawm ntev ntawm qhov kub thiab txias. +250 ° C rau -180 ° C). PTFE nws tus kheej tsis muaj tshuaj lom rau tib neeg, tab sis nws yog siv rau hauv cov txheej txheem ntau lawm Ib qho ntawm cov khoom siv raw ntawm perfluorooctanoate ammonium (PFOA) yog suav tias yog cov kab mob carcinogen.
Kub -20 ~ 250 ° C (-4 ~ + 482 ° F), tso cai rau txias txias thiab cua sov tam sim ntawd, los yog hloov ua haujlwm txias thiab kub.
Siab -0.1 ~ 6.4Mpa (Lub tshuab nqus tsev tag nrho txog 64kgf / cm2) (Lub tshuab nqus tsev puv rau 64kgf / cm2)
Nws cov khoom tsim tau daws ntau yam teeb meem hauv kev lag luam tshuaj lom neeg, roj av thiab tshuaj hauv peb lub tebchaws.PTFE seals, gaskets, gaskets, PTFE seals, thiab gaskets yog ua los ntawm kev ncua polymerized PTFE resin molding.Piv nrog rau lwm cov yas, PTFE muaj cov yam ntxwv ntawm cov tshuaj tiv thaiv corrosion, thiab nws tau dav siv los ua cov khoom sib khi thiab cov khoom ntim.
Nws cov khoom ua tiav thermal decomposition ntawm txog 500 degrees Celsius suav nrog tetrafluoroethylene, hexafluoropropylene thiab octafluorocyclobutane, uas yuav decompose heev corrosive fluorine-muaj gases ntawm kub kub.
Post lub sij hawm: Jan-17-2023