Daim ntawv qhia no npog PTFE high-temperature daim kab xev xaiv rau kev txhaj tshuaj molding demolding thiab anti-stick daim ntaub ntawv. Kev xaiv kub raws li: ≤260 ° C rau cov yas dav dav (tus qauv silicone PSA daim kab xev, 0.13-0.18mm); 260-300 ° C rau high-temperature engineering yas xws li PC, PA66, POM (high-temp silicone nplaum, 0.18-0.25mm); 300-400 ° C rau PEEK, LCP, PPS nyob ze cov neeg ua haujlwm kub (cov nplaum nplaum tsis ua haujlwm; siv cov ntaub nplaum tsis muaj PTFE lossis PFA zaj duab xis). Cov khoom siv raws li kev xaiv: tacky cov ntaub ntawv xav tau siab tso tawm ntshiab PTFE nto; iav / ntxhia ntim cov ntaub ntawv yuav tsum tau ua haujlwm hnyav 0.25mm + hnav-resistant daim kab xev; corrosive additives xav tau chemically resistant nplaum thiab ntom substrate; static-sensitive daim ntaub ntawv yuav tsum tau anti-static dub PTFE daim kab xev.

High-tensile PTFE high-temperature daim ntaub yog tsim los ntawm txheej PTFE mus rau high-strength fiberglass ntaub, muab tensile zog, tshav kub tsis kam, tsis-stick zog, tshuaj tiv thaiv, thiab tsis muaj kev sib txhuam. Cov ntawv thov tseem ceeb muaj xws li: kev lag luam xa khoom (lub thawv ntim cua sov, ci zaub mov, tshuab ziab khaub ncaws, ntawv / zaj duab xis ziab); composite molding tso tawm ntaub thiab kub xovxwm cushion liners; vuam tiv thaiv kab hlau rhuav thiab thermal rwb thaiv tsev tsho; hluav taws xob lub cev muaj zog thiab transformer rwb thaiv tsev; tsim zawv zawg bearings thiab cov kav dej txhawb nqa; chemical filtration thiab valve sealing nyob rau hauv corrosive ib puag ncig. Lub zog tensile siab ua kom ruaj khov nyob rau hauv qhov nro, tearing, rov flexing, thiab kub-kub txhua yam kev ntxhov siab thoob plaws cov kev siv ntau yam hnyav.

Thaum lub sij hawm sintering, PTFE hais ntawm fiberglass ntaub yaj saum 327 ° C, rhuav tshem thawj folded-chain lamellae thiab particle ciam teb los tsim ib qho amorphous yaj. Thaum txias, PTFE recrystallizes rau hauv spherulites tsim ntawm radially oriented lamellae, nrog crystallinity li 50-70%. Txias tus nqi txiav txim siab siv lead ua zoo meej: qeeb txias yields ntau dua crystallinity, loj spherulites, hardness ntau dua; ceev quenching muab finer spherulites thiab txhim kho yooj.