Lesela la PTFE le nang le mocheso o phahameng oa mocheso (PTFE-coated fiberglass) le na le khanyetso e fokolang hobane fiberglass substrate ka tlhaho e brittle. Masela a masesaane (0.08mm) a pholoha mameno a makholo ho isa ho a likete; limaraka tse boima (> 0.25mm) petsoha ka mor'a tse ngata. Molumo oa Satin o feta ho loha ka mokhoa o hlakileng. Bakeng sa ho kobeha ho sa khaotseng, nahana ka filimi e tiileng ea PTFE kapa lesela le thehiloeng ho aramid.

Lesela la PTFE le nang le mocheso o phahameng oa mocheso (PTFE-coated fiberglass) le sebelisoa haholo ho hatisa masela le ho daea mabanta a khatiso a fetisa mocheso (180-230 ° C), likoahelo tsa tafole ea khatiso ea skrine, mabanta a marang-rang a omisang, mabanta a mochine o kopanyang, le ho phuthela ka rolara. Sebaka sa eona se se nang thupa se thibela masala a enke / sekhomaretsi, ho fokotsa nako ea ho hloekisa le ho ntlafatsa boleng ba lesela. Mabanta a sa feleng a se nang moeli a nolofalletsa tlhahiso e tsoelang pele.

PTFE high-themperature fabric (PTFE-coated fiberglass) ke premium filthara mecha ea litaba bakeng sa maemo a feteletseng: flue gas lerōle ho tlosoa (samente, litšila tse chesoang, liboiler tsa mashala tse fihlang ho 260 ° C), filtration ea mokelikeli o senyang (acids, alkalis, oli), lijo / meriana sterile filtration, le li-filters tsa HEPA. Sebaka se se nang lithupa se thibela lerōle ho phunya 'me se lumella ho hloekisa habonolo. Membrane-laminated grade fumana tlhahiso e tlase haholo.

PTFE lesela la mocheso o phahameng oa mocheso le boloka motlakase o babatsehang ho tloha ho -180°C ho ea ho 260°C: resistivity ea molumo >10¹³ Ω·cm ho 200°C, dielectric e tsitsitseng e tsitsitseng ho 2.0-2.1. Ka holimo ho 260°C, PTFE ea nolofatsa, e bola ka holimo ho 327°C, e lahleheloa ke ho intša ka ho sa feleng. Ka tlase ho 0 ° C, ho hloekisoa hoa ntlafala empa ho roala ho fetoha ho senyeha. Lula ka har'a 260 ° C bakeng sa ts'ebetso e tšepahalang.

Lisebelisoa tsa ho qeta holim'a metsi tse sebelisoang lesela la fiberglass pele ho roala ha PTFE li bohlokoa bakeng sa ts'ebetso ea ho qetela ea lesela la mocheso o phahameng oa PTFE. Organosilane coupling agents e theha marokho a limolek'hule pakeng tsa fiber ea inorganic glass le PTFE ea tlhaho, e matlafatsang matla a peel ho tloha ho <2 N/cm ho isa ho 4-8+ N/cm. Kalafo e nepahetseng e boetse e matlafatsa ho hanyetsa mocheso (260 ° C +), ts'ebetso ea dielectric, le lik'hemik'hale tse hanyetsanang le lik'hemik'hale. Lesela le sa phekoloeng le lebisa ho delamination, ho phatloha le bophelo bo khutšoanyane ba tšebeletso.

Fiberglass weave pattern - plain, twill, kapa satin - e ama haholo PTFE thepa ea lesela la mocheso o phahameng oa mocheso. Satin weave e fana ka matla a phahameng a ho tabola (2-3x thota) le ho tenyetseha, e loketseng ho kobeha ho matla. Plain weave e fana ka botsitso bo botle ka ho fetesisa le ho khomarela lekhapetla, e loketseng lits'ebetso tse tsitsitseng. Twill e leka-lekanya thepa eohle bakeng sa tšebeliso e akaretsang.

Coating ho ts'oana ha lesela la mocheso o phahameng oa PTFE ho khethoa ke lintlha tse 'nè: sebopeho sa ho roala (saese ea boholo ba 0.15-0.35 μm, viscosity, dikahare tse tiileng), mokhoa oa ho roala le oa sintering (ho roala ka lehare ho khethoa bakeng sa ho lumellana), boleng ba substrate (mofuta oa weave, pele ho phekolo), le tikoloho ea tlhahiso (20-25% R <60%). Dip + blade e kopantseng ts'ebetso e leka-lekanya ho kenella le ho boreleli holimo.

Ho hloekisa le tlhokomelo e nepahetseng ho lelefatsa bophelo ba lesela la mocheso o phahameng oa PTFE. Hloekisa ka mor'a ho sebelisoa le ka mor'a ho pholile. Sebelisa borashe bo bonolo, li-detergents tse sa jeleng paate, kapa joala bakeng sa litšila. Le ka mohla u se ke ua sebelisa li-acid tse matla/alkalis, bleach, kapa metal scrapers. Ho tlotsa oli ea silicone khafetsa ho fokotsa ho roala. Latela litataiso tsena ho thibela tšenyo ea lira.

PTFE lesela la mocheso o phahameng oa mocheso le lesela la silicone ka bobeli li sebelisa lesela la fiberglass e le motheo empa li fapane ka thepa ea ho roala (PTFE resin vs silicone rabara). PTFE e ipabola tabeng ya ho se thure, ho se mamelle, le ho hanyetsa dikhemikhale ho fihla ho 260°C. Lesela la silicone le fana ka maemo a holimo, ho kenya motlakase, le ho hanyetsa mollo (ho fihlela ho 230 ° C). Khetha ho latela lintho tse tlang pele bophelong ba hau.

Lesela la PTFE la mocheso o phahameng le fana ka khanyetso e ikhethang ea lik'hemik'hale, le mamella acid e matla, alkalis, solvents organic, le likhase tse senyang. Sengoliloeng sena se qaqisa lintho tsa sona tse hanyetsanang, mefokolo (metaele ea alkali e qhibilihisitsoeng, lisebelisoa tse matla tsa fluorinating), le lintlha tsa bohlokoa joalo ka mocheso, khatello ea maikutlo le khatello ea maikutlo.