PTFE lesela la mocheso o phahameng oa mocheso oa ho baka limmete li fana ka melemo e mene ea bohlokoa: ts'ebetso e se nang thupa (ha ho na oli kapa phofo e hlokahalang, li-pastry tse bonolo li lokolloa ka mokhoa o hloekileng), mocheso o pharaletseng (-70 ° C ho ea ho 260 ° C, o bolokehile bakeng sa ontong ho ea sehatsetsing), ho sebelisoa hape (li-cycles tse likete, ho bonolo ho hloekisa), esita le conduction ea mocheso (e thibela ho chesa, ho leka-lekana ho sootho). E tsamaellana le FDA ea boemo ba lijo, e ntša pampiri e entsoeng ka letlalo 'me e feta limmete tsa silicone tse nang le mocheso o betere le sebopeho se setle sa bokaholimo.

Lesela la mocheso o phahameng oa PTFE le bohlokoa indastering ea ho kopanya liaparo. Lisebelisoa tsa bohlokoa: mabanta a sa feleng a conveyor bakeng sa mechini e tsoelang pele e kopanyang (e thibela sekhomaretsi se chesang se qhibilihisang, se se nang wrinkles), sekoaelo se se nang thupa le lesela la ho roala likhatiso tsa mocheso o bataletseng (sireletsa lipolanete ho silafatsoa sekhomaretsi), mabanta a conveyor bakeng sa pente ea matheba / phofshoana e koaheletsoeng ka matheba. ho omisa / ho sintering), le likoahelo tsa lieta tsa tšepe bakeng sa ho hatella sampole. Botenya bo tloha ho 0.13mm (padding e bobebe) ho isa ho 0.55mm (mabanta a tsamaisang thepa a boima).

Fiberglass lesela thermal shrinkage ke sesosa se ka sehloohong sa PTFE tepi dimensional ho se tsitse. Ho PTFE sintering thempereichara (360-400 ° C), masala a loha khatello ea kelello e lokolloa. Haeba e sa thibeloe, lesela lea fokotseha; haeba e thibetsoe, khatello ea kelello e patehileng e koaletsoe, e bakang ho fokotseha ha morao nakong ea ho phekola ka sekhomaretsi (150-200 ° C) le ho futhumatsa ho qetela. Tharollo: sebelisa fiberglass e behiloeng pele ho mocheso e nang le <0.5% shrinkage ho 400 ° C, ho felisa khatello ea kelello e setseng pele u roala.

Lesela la PTFE le nang le mocheso o phahameng oa mocheso (PTFE-coated fiberglass) le fana ka khanyetso e ikhethang ea lik'hemik'hale, e mamellang concentrated acids (ho kenyeletsoa le aqua regia), li-alkali tse matla (mocheso oa kamore), li-solvents le li-oxidizing agents. Mekhelo: tšepe ea alkali e qhibilihisitsoeng le metsoako ea halogen ea mocheso o phahameng e hlasela PTFE. Tšenyo ea ho roala e pepesetsa fiberglass ho hydrofluoric acid le alkalis e chesang haholo. Mocheso o ka holimo ho 260 ° C o fokotsa ho hanyetsa. Bakeng sa libaka tse ngata tsa lik'hemik'hale, lesela la PTFE le lula le tsitsitse ebile le tšepahala.

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.

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 hanyetsanang le aqua regia, li-alkali tse matla, li-solvents), mefuta e mengata ea mocheso (-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 (<0.5% ho hloekisoa holimo), ho thibela ho tsitsa ha metsi. E sebelisoa liphaepheng tsa lik'hemik'hale, litora tsa desulfurization, litanka tsa pickling, le lisebelisoa tsa lijo/pharma. Limaraka tsa FDA li fumaneha.