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).

Anti-static PTFE lesela le fihlellwa ka mekhoa e 'meli e meholo: ho roala doping (ho kopanya li-fillers tse tsamaisang tse kang carbon black ho emulsion ea PTFE, ho etsa marang-rang a percolation nakong ea mahloriso a bohlokoa) le substrate weaving (ho kenya likhoele tsa conductive ka har'a lesela la fiberglass). Ho hanyetsa ha sefahleho ho laoloa ho 10⁵–10⁹ Ω. Molao-motheo: theha tsela ea conductive e ntšang litefello tse tsitsitseng hang-hang, ho thibela ho bokellana ho kotsi. Ho beha fatše hoa hlokahala bakeng sa ts'ebetso e sebetsang.

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.

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 tšetsoeng 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.