PTFE ga-otutu fabric (PTFE-coated fiberglass) ni o ni o tayọ gbona mọnamọna resistance laarin awọn oniwe-deede iṣẹ ibiti o ti -70°C to 260°C. O le fi aaye gba gigun kẹkẹ otutu otutu, fun apẹẹrẹ, gbigbe lati firisa -50°C si titẹ gbigbona 260°C. Awọn onipò Ere paapaa yege itutu agbaiye lojiji lati 260°C sinu omi 10°C. Bibẹẹkọ, awọn ohun elo iyalẹnu lati awọn iwọn otutu ti o ga ju 300°C (nitosi aaye yo PTFE's 327°C) yoo fa fifalẹ lẹsẹkẹsẹ ati delamination. Sobusitireti fiberglass pese iduroṣinṣin iwọn; ti a bo PTFE jẹ ipin idiwọn.

Aṣọ iwọn otutu giga PTFE ni lilo pupọ ni ile-iṣẹ kemikali fun awọn ohun elo bọtini meje: awọn gasiketi flange ati awọn paipu paipu (koju awọn acids / alkalis lagbara), riakito ati awọn ohun elo ojò (idilọwọ ipata irin, mimọ irọrun), awọn baagi àlẹmọ fun gaasi ibajẹ ibajẹ (to 260 ° C), awọn isẹpo imugboroja ipata fun awọn ducts, anti-adhesion, itusilẹ itanna / ifasilẹ atijọ, itusilẹ itanna idabobo murasilẹ. FDA ati UL onipò wa.

PTFE ga-otutu fabric jẹ idurosinsin to 300 ° C, sugbon ni a ina o decomposes ati ki o tu gíga oloro gaasi: hydrogen fluoride (HF) (corrosive, ẹdọforo edema) ati perfluoroisobutylene (PFIB) (colorless, odorless, ~ 10x diẹ majele ti phosgene, ko si antidote). Paapaa monoxide erogba, awọn iṣẹku PFOA, ati awọn dioxins itọpa. Awọn iboju iparada ẹfin deede ko ni doko; lo ohun elo mimi ti ara ẹni (SCBA). Awọn aami aisan le jẹ idaduro.

Awọn aṣoju ipari dada ti a lo si aṣọ gilaasi ṣaaju ki ibora PTFE jẹ pataki fun iṣẹ ṣiṣe asọ iwọn otutu giga PTFE ikẹhin. Awọn aṣoju idapọmọra Organosilane ṣẹda awọn afara molikula laarin okun gilasi inorganic ati Organic PTFE, igbelaruge agbara peeli lati <2 N/cm si 4-8+ N/cm. Itọju to dara tun ṣe alekun resistance ooru (260°C+), iṣẹ dielectric, ati resistance kemikali. Aṣọ ti ko ni itọju nyorisi delamination, bubbling, ati igbesi aye iṣẹ kukuru.

Didara to dara ati itọju fa igbesi aye ti aṣọ-iwọn otutu giga PTFE. Mọ lẹhin lilo ati lẹhin itutu agbaiye. Lo awọn gbọnnu rirọ, awọn ifọsẹ didoju, tabi oti fun awọn abawọn. Maṣe lo awọn acids/alkalis lagbara, Bilisi, tabi awọn scrapers irin. Lubrication epo silikoni deede dinku yiya. Tẹle awọn itọsona wọnyi lati yago fun ibajẹ ti a bo.