Matla a phahameng a PTFE lesela la mocheso o phahameng oa mocheso ke motsoako oa fiberglass e phahameng ea tenacity le PTFE coating. Lisebelisoa tsa bohlokoa tse tsamaisang indasteri (ho baka lijo, ho omisa masela, lipalangoang tsa PCB), ts'ireletso ea welding (sekoaelo sa mocheso-sealer, lithebe tsa spatter), ho theola le ho etsa mochini oa khatiso o chesang (ho bopa rabara, PV lamination), insulation ea motlakase (motor slot liners, wraps cable), membrane ea meralo (marulelo a lebala la lipapali, lilemo tse 30 tsa li-anti-corrosion) aerospace (likobo tsa mocheso), le lisebelisoa tse khethehileng (ho itšeha ka laser, khatiso ea 3D).

Ho omisa ke mohato oa bohlokoa oa tlhahiso ea lesela la mocheso o phahameng oa PTFE. Litšitiso tse tloaelehileng li kenyelletsa: ho petsoha (ho omisa ka potlako haholo, letlalo la letlalo), ho falla ha letlalo (likaroloana li falla holimo, tlamahano e fokolang ea ka hare), li-pinholes / li-blister (moea o koaletsoeng kapa mouoane), matheba a masoeu le ho chalking (ho falla ha surfactant kapa fusion e sa fellang), yellowing / coking (ho futhumala ho feteletseng ha li-additives), delamination (lekhapetla la lamunu), khatello ea kelello e feta (lekhapetla la lamunu). shrinkage), bokaholimo bo omileng empa kahare bo le metsi (ho holoha letlalo ho ts'oara mongobo), le mats'oafo a teteaneng (phello ea kofi). Litharollo li kenyelletsa lintlha tse laoloang tsa ho omisa, moea o nepahetseng, le pretreatment ea substrate.

PTFE emulsion impregnation ea fiberglass lesela hloka bathusi ba fapa-fapaneng ho finyella ho roala junifomo, ho khomarela ka matla, le bokaholimo bo se nang sekoli. Li-additives tsa bohlokoa li kenyelletsa: lisebelisoa tsa ho kolobisa (fokotsa tsitsipano ea holim'a metsi, ho ntlafatsa ho kenella ka hare), li-thickeners (taolo ea viscosity le boima ba ho roala), balaoli ba pH (ho tsitsisa emulsion ho pH 9-10), li-silane coupling agents (ho matlafatsa ho khomarela likhalase), lithuso tsa ho etsa filimi (PFA / FEP bakeng sa sintering), li-fillers tse sebetsang (ho thibela li-pifonholes le li-conductivity). (ho omisa butle). Khetho e itšetlehile ka substrate le litlhoko tsa tshebetso.

Lesela le atolositsoeng la fiberglass (lesela la khoele e ngata) le fapane haholo le lesela le tloaelehileng la fiberglass ka sebopeho sa khoele. Ka phekolo ea jete ea moea e nang le khatello e phahameng, likhoele tse sa khaotseng tsa khalase lia aroloa, li holofalitsoe, 'me li fetotsoe hore e be khoele e boima, e kang ea k'hothone. Sena se etsa lesela le letenya, le bonolo le nang le mokelikeli o phahameng oa mocheso (mekhabiso ea moea e qabeletsoeng), ho lumellana ho molemo, ho sebetsa hantle ka ho fetisisa, le ho ntlafala ha ho lla / ho hanyetsa - ka theko ea matla a fokolang a fokolang. E sebelisoa bakeng sa li-gaskets tse nang le mocheso o phahameng, liphaephe tse koahelang, mekotla ea li-filters, le litiiso tsa ontong.

Bohloeki ba thepa e tala ke motheo oa ts'ebetso ea lesela la mocheso o phahameng oa PTFE. Emulsion e phahameng ea PTFE (ha ho na li-ion tsa tšepe, ha ho na masala a tlaase-molek'hule-boima) e tiisa ho hanyetsa mocheso (ha ho na mosehla ho fihlela ho 260 ° C), e tsitsitseng e se nang thupa, le matla a phahameng a dielectric. Bakeng sa khalase ea fiberglass, E-glass e se nang alkali (Na₂O <0.8%) e boloka matla le ho pata mocheso ka mocheso o phahameng; Khalase e mahareng/e phahameng haholo e baka tshenyeho. Ho tlosoa ka ho feletseng ha lisebelisoa tsa ho loha ho thibela carbonization le delamination. Bohloeki bo ama ka kotloloho bophelo ba ts'ebeletso, ho latela maemo a lijo, le ts'epo ea motlakase.

Ho omisoa ka nepo ha lesela la fiberglass ho bohlokoa bakeng sa ho roala PTFE, ho kenngoa ha resin, kapa lamination. Mekhoa e meraro ea phekolo e ka sehloohong: ho tlosoa ha mongobo ka 105-120 ° C (10-30 min ho itšetlehile ka boima ba 'mele), ho hloekisa metsi / mocheso ho 300-450 ° C (LOI <0.1%, qoba> 500 ° C), le ho futhumatsa pele ho 60-100 ° C pele ho roala. Laola ho tšoana ha mocheso oa ontong (±5°C), ho ntša mongobo ka likhoka, le ho sireletsa masela a hloekisitsoeng ka silane ka tlase ho 110°C. Boloka lesela le omisitsoeng ka mekotleng e tiisitsoeng kapa likamoreng tse omeletseng (<30°C, <40% RH).

Lesela la mocheso o phahameng oa PTFE (PTFE-coated fiberglass) le batla le inert ka lik'hemik'hale, empa lintho tse itseng li baka kutu tlas'a maemo a itseng. Tlhaselo e tobileng ea PTFE e etsahala ka tšepe ea alkali e qhibilihisitsoeng (sodium, potasiamo), li-fluorinating agents tse matla (F₂, ClF₃) ka mocheso o phahameng, le li-alkali tse matla tse qhibilihisitsoeng ka holimo ho 300 ° C. Khoho e sa tobang e etsahala ha hydrofluoric acid (HF), alkalis e chesang haholo, kapa hot phosphoric acid e kenella ka bofokoli ba ho koahela 'me e hlasela karoloana ea fiberglass. Bakeng sa ts'ebeletso e feteletseng ea lik'hemik'hale, sebelisa filimi e hloekileng ea PTFE ntle le fiberglass.

Lesela la PTFE le nang le mocheso o phahameng oa mocheso (PTFE-coated fiberglass) le na le ts'oaetso e ntle haholo ea mocheso ka har'a mefuta e tloaelehileng ea ts'ebetso ea -70 ° C ho isa ho 260 ° C. E ka mamella ho palama baesekele ka potlako, mohlala, ho tloha sehatsetsing sa -50 ° C ho ea ho mochine o chesang oa 260 ° C. Limaraka tsa pele li bile li pholoha ho pholile ka tšohanyetso ho tloha ho 260 ° C ho ea ho 10 ° C metsi. Leha ho le joalo, ho tšosa thepa ho tloha mocheso o ka holimo ho 300 ° C (haufi le ntlha ea ho qhibiliha ea PTFE ea 327 ° C) ho tla baka ho phunyeha le ho senya hang-hang. Fiberglass substrate e fana ka botsitso ba dimensional; ho roala PTFE ke ntlha e fokotsang.

PTFE lesela la mocheso o phahameng oa mocheso le sebelisoa haholo indastering ea lik'hemik'hale bakeng sa lits'ebetso tse supileng tsa bohlokoa: li-flange gaskets le li-pipe linings (ho hanyetsa li-acids tse matla / alkali), li-reactor le li-tank linings (li thibela ho bola ha tšepe, ho hloekisa habonolo), mekotla ea sefa bakeng sa khase e senyang ea flue (ho fihlela ho 260 ° C), anti-corrosion atoloso, manonyeletso bakeng sa ho roala. ho bopa ha motsoako, le liphutheloana tsa motlakase / tsa mocheso. FDA le limaraka tsa UL lia fumaneha.

PTFE high-themperature lesela (PTFE-coated fiberglass) e fana ka melemo e mene e ka sehloohong e le lesela le khahlanong le kutu: lik'hemik'hale tse nang le lik'hemik'hale (ho hanyetsa aqua regia, li-alkalis tse matla, li-solvents), mocheso o pharaletseng (-70 ° C ho 260 ° C e tsoelang pele, 350 ° C tlhoro), botsitso ba dimensional (<0.5% le botsitso bo sa sisinyeheng), ho thibela ho hloekisoa ha metsi, ho thibela ho tsitsa holimo (<0.5%). E sebelisoa liphaepheng tsa lik'hemik'hale, litora tsa desulfurization, litanka tsa pickling, le lisebelisoa tsa lijo/pharma. Limaraka tsa FDA li fumaneha.