PTFE high-temperature npuag (PTFE-coated fiberglass) muaj cov thermal poob siab zoo nyob rau hauv nws qhov kev ua haujlwm ntawm -70 ° C txog 260 ° C. Nws tuaj yeem tiv taus kev kub ceev ceev, xws li txav los ntawm -50 ° C lub freezer mus rau 260 ° C kub xovxwm. Cov qib hwm tseem muaj sia nyob tam sim ntawd txias los ntawm 260 ° C rau hauv dej 10 ° C. Txawm li cas los xij, kev poob siab ntawm cov khoom los ntawm qhov kub siab tshaj 300 ° C (ze PTFE's 327 ° C melting point) yuav ua rau tawg tam sim ntawd thiab delamination. Lub fiberglass substrate muab qhov ntev stability; PTFE txheej yog qhov txwv.

PTFE high-temperature npuag yog dav siv nyob rau hauv kev lag luam tshuaj rau xya daim ntaub ntawv tseem ceeb: flange gaskets thiab cov yeeb nkab hauv ob sab phlu (resists muaj zog acids / alkalis), reactor thiab tank linings (tiv thaiv hlau corrosion, yooj yim tu), lim hnab rau corrosive flue gas (txog 260 ° C), anti-corrosion expansion pob qij txha rau ducts, ducts, molding, thiab hluav taws xob / thermal rwb thaiv tsev qhwv. FDA thiab UL qib muaj.

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.

Nto xov cov neeg ua hauj lwm siv rau fiberglass ntaub ua ntej PTFE txheej yog ib qho tseem ceeb rau qhov kawg PTFE high-temperature daim ntaub. Organosilane coupling cov neeg ua haujlwm tsim cov txuas txuas ntawm cov iav fiber ntau thiab cov organic PTFE, txhawb nqa lub zog tev ntawm <2 N / cm rau 4-8 + N / cm. Kev kho kom zoo kuj tseem txhim kho cov cua sov (260 ° C +), dielectric kev ua tau zoo, thiab tshuaj tiv thaiv. Cov ntaub tsis kho ua rau delamination, bubbling, thiab lub neej ua haujlwm luv.

Kev tu thiab tu kom zoo txuas ntxiv lub neej ntawm PTFE high-temperature ntaub. Ntxuav tom qab siv thiab tom qab txias. Siv cov txhuam hniav mos, cov tshuaj ntxuav tes tsis huv, lossis dej cawv rau stains. Tsis txhob siv cov kua qaub/alkalis, tshuaj dawb, lossis hlau scrapers. Tsis tu ncua silicone roj lubrication txo hnav. Ua raws li cov lus qhia no txhawm rau tiv thaiv cov txheej txheem puas tsuaj.