Rolled PTFE daim kab xev tuaj yeem tsim interlayer adhesion (blocking) thiab nplaum hloov mus rau lub sijhawm ntev cia. Ua rau: PTFE zaj duab xis elastic nco thiab silicone PSA nkag rau hauv siab / cua sov. Kev tiv thaiv: gradient winding nro (sab nruj, sab hauv xoob) thaum lub sij hawm tsim khoom, ntxiv rau kev tso tawm txheej rau sab tsis-nplaum. Khaws ntawm -15 ° C mus rau 40 ° C, 30-70% RH, kab rov tav ntawm racks, tig rolls peb lub hlis twg. Rau cov qib nplaum tuab, ntxiv cov ntawv tso tawm ntawm cov khaubncaws sab nraud povtseg.

PTFE high-temperature npuag muaj 6 qhov zoo tshaj plaws raws li kev luam ntawv conveyor siv: tsis yog-stick nto (luam ntawv muab tshuaj txhuam thiab number case tso tawm kom huv), 260 ° C kub tsis kam (nqus kom qhuav), qhov ntev stability (<0.5% elongation, meej sau npe), tshuaj inertness (tiv corrosive pastes), tsis muaj kev sib txhuam (cov xim zoo li qub, kev ua haujlwm zoo li qub), thiab kev ua haujlwm zoo. Qhov zoo tshaj plaws rau kev tshuaj ntsuam luam ntawv, luam ntawv digital, thiab daim ntawv thov hloov hluav taws xob.

Anti-static PTFE high-temperature npuag combines cov tsis-stick, tshav kub-resistant (260 ° C), thiab chemically inert zog ntawm tus qauv PTFE nrog static-dissipative kev ua tau zoo. Cov ntawv thov tseem ceeb: kev tsim khoom siv hluav taws xob (PCB lamination, cov khoom siv tuav), PV module lamination (tiv thaiv ESD kev puas tsuaj rau lub hnub ci), cov khoom noj thiab tshuaj ua haujlwm (ESD-kev nyab xeeb ci liner), tshuaj nroj tsuag (tiv thaiv corrosion, anti-static ducting), thiab textile / luam ntawv industries. Surface resistance feem ntau 10⁶–10⁹ Ω.

PTFE high-temperature tapes khaws cia rau hauv daim ntawv yob tuaj yeem raug kev txom nyem los ntawm interlayer adhesion (blocking) thiab nplaum hloov mus rau sab tsis-stick. Hauv paus ua rau: PTFE zaj duab xis elastic nco thiab silicone PSA nkag mus rau hauv siab thiab kub. Kev daws: gradient winding nro - nruj ntawm txheej txheej, xoob ntawm sab hauv txheej - siv kaw-voj nro tswj. Ntxiv nrog rau kev tso tawm txheej, cia kom zoo (15-40 ° C, 30-70% RH), kab rov tav tso, thiab peb lub hlis twg yob tig.

PTFE high-temperature npuag kev pab cuam lub neej txawv heev los ntawm daim ntawv thov. Cov tshuaj tiv thaiv corrosion tuaj yeem siv tau 3+ xyoo (4x ntev dua li roj hmab). Cov tais ci zaub mov lub hli tas los nrog me ntsis degradation. Cov khoom siv conveyor siv los ntawm kev sib txhuam. PV lamination (150 ° C, EVA tiv tauj) muaj lub neej nruab nrab. Cov ntawv thov kev sib txhuam hnyav (abrasive discs) muaj lub neej luv. Cov yam tseem ceeb: tswj qhov kub thiab txias (nyob twj ywm ≤260 ° C), tsis txhob muaj cov creases ntse, tu tsis tu ncua, thiab hloov raws sij hawm thaum blistered los yog yellowed.

PTFE high-temperature daim kab xev siv nyob rau hauv kev sib cuag nrog zaub mov yuav tsum hwm nruj nruj txwv kub: ≤260 ° C rau kev siv tas mus li (tsis muaj sij hawm txwv), 260-300 ° C mus txog 30 feeb xwb, thiab > 300 ° C txwv. Daim kab xev yog rau kev sib cuag ncaj qha nkaus xwb (cov tais ntim khoom, lub hau npog npog), tsis yog qhwv cov zaub mov ncaj qha. Tsis txhob ua haujlwm yam tsis muaj khoom noj khoom haus (qhuav cua sov). Hloov yog blistered, yellowed, los yog hnav.

PTFE high-temperature npuag (PTFE-coated fiberglass) kav ntev tshaj plaws thaum khaws cia hauv qab 260 ° C, kom deb ntawm cov creases ntse, thiab ntxuav nrog cov cuab yeej mos. Cov yam tseem ceeb ntawm lub neej txwv: thermal degradation saum 260 ° C, thermal poob siab los ntawm cua sov / txias, txhua yam qaug zog los ntawm dabtsi yog khoov thiab nro, tshuaj tua kab mob los ntawm molten alkali hlau los yog muaj zog oxidizers, puas los ntawm hlau scrapers thaum ntxuav, thiab UV raug rau sab nraum zoov siv. Qhov zoo ntawm txheej thiab substrate kuj tseem ceeb.

PTFE high-temperature npuag yog ruaj khov mus txog 300 ° C, tab sis nyob rau hauv ib tug hluav taws kub nws decomposes thiab tso tawm cov pa phem heev: hydrogen fluoride (HF) (corrosive, pulmonary edema) thiab perfluoroisobutylene (PFIB) (tsis muaj xim, tsis muaj ntxhiab, ~ 10x ntau toxic tshaj phosgene), tsis muaj tshuaj tiv thaiv. Kuj tseem muaj cov pa roj carbon monoxide, PFOA residues, thiab kab dioxins. Cov qhov ncauj qhov ntswg ua pa tsis zoo; siv lub tshuab ua pa ntawm tus kheej (SCBA). Cov tsos mob yuav ncua.

Silicone siab-sensitive adhesives (PSA) rau PTFE high-temperature tapes sib txawv nyob rau hauv high-temperature aging kev ua tau zoo. Methylphenyl silicone PSA khaws> 85% tev lub zog tom qab 250 ° C / 7 hnub, thaum tus qauv methyl poob rau 50-70%. Ntxiv-kho (hydrosilylation) cov tshuab muaj kev ruaj ntseg zoo dua li peroxide-kho. Txhawm rau txuas ntxiv 200 ° C + kev pabcuam, xaiv cov qib siab-phenyl-kho ntxiv.

Thermally conductive PTFE Pressure-sensitive Adhesive (PSA) tapes yuav tsum ua kom sov thaum nyob nplaum. Ntxiv cov fillers txhim kho thermal conductivity tab sis mob adhesion. Qhov zoo tshaj plaws sib npaug siv spherical coarse hais (raws li cov pob txha conductive) sib xyaw nrog cov khoom zoo (kom sau cov voids), ua kom tag nrho cov muab tub lim loading saum toj kawg nkaus qhov pib percolation. Tsis txhob flakes thiab fibers; lawv tua tack.