PTFE ntama a ɛyɛ hyew kɛse (PTFE-coated fiberglass) ma nnuru a ɛyɛ soronko a ɛko tia, egyina acid a wɔahyɛ no den (a aqua regia ka ho), alkalis a ano yɛ den (wɔ dan mu hyew mu), organic solvents, ne oxidizing agents ano. Nea ɛka ho: alkali dade a ayɛ hyew ne halogen nnuru a ɛyɛ hyew kɛse tow hyɛ PTFE so. Nneɛma a wɔde kata so a ɛsɛe no ma fiberglass nya hydrofluoric acid ne alkali a ɛyɛ hyew a wɔahyɛ no den. Ɔhyew a ɛboro 260°C ma ahoɔden a ɛko tia no so tew. Wɔ nnuru a atwa yɛn ho ahyia dodow no ara fam no, PTFE ntama da so ara yɛ nea ɛyɛ den yiye na wotumi de ho to so.

PTFE ntama a ahoɔden kɛse wom yɛ fiberglass a ɛyɛ den kɛse ne PTFE a wɔde kata so a wɔabom ayɛ. Nneɛma atitiriw a wɔde di dwuma span mfiridwuma mu nneɛma a wɔde fa (aduan a wɔde to, ntama a wɔde twitwiw, PCB akwantu), welding ahobammɔ (ɔhyew-sealer kataso, spatter kyɛm), demolding ne ɔhyew press forming (rɔba molding, PV lamination), anyinam ahoɔden insulation (motor slot liners, cable wraps), architectural membranes (agumadibea dan atifi, 30 + mfe nkwa), nnuru anti-corrosion (ntrɛwmu nkwaa, tank a wɔde kata so), ahunmu (ntama a wɔde hyew nneɛma), ne nneɛma titiriw a wɔde di dwuma (laser twa, 3D tintim).

Drying yɛ anammɔn titiriw wɔ PTFE ntama a ɛyɛ hyew kɛse a wɔyɛ mu. Mfomso ahorow a ɛtaa ba ne: mpaapaemu (ɛwo ntɛmntɛm dodo, ɛho honam ani honam ani hwɛbea), ade a wɔde kata so no tu (nsu nketenkete no kɔ soro, emu nkitahodi yɛ mmerɛw), pinholes/blisters (mframa anaa nsu a ɛyɛ hyew a wɔakyere), nsensanee fitaa ne chalking (surfactant migration anaasɛ fusion a enni mũ), yellowing/coking (additives a ɛyɛ hyew dodo), delamination (shrinkage stress exciceeds adhesion), orange peel (ɛnyɛ pɛpɛɛpɛ), warpage (a ɛnyɛ pɛpɛɛpɛ shrinkage), soro dry nanso emu nsu (honam ani afiri no nsu), ne anoano a ɛyɛ den (coffe-ring effect). Ano aduru no fa drying profiles a wɔahyɛ so, mframa a ɛfata, ne substrate pretreatment ho.

PTFE emulsion impregnation of fiberglass ntama hwehwɛ aboafo ahorow na ama wɔanya biako coating, adhesion a emu yɛ den, ne sintɔ-free surfaces. Nneɛma atitiriw a wɔde ka ho ne: nneɛma a ɛma nsuo (ɛtew ɔfasuo so nhyɛsoɔ so, ɛma nsuo a ɛkɔ mu no tu mpɔn), nneɛma a ɛma ɛyɛ den (ɛhwɛ viscosity ne coating weight so), pH regulators (ɛma emulsion no gyina pH 9-10), silane coupling agents (ɛma ahwehwɛ a ɛbata ho no yɛ kɛseɛ), film-forming aids (PFA/FEP ma sintering), functional fillers (wear resistance, conductivity), defoamers (siw ano pinholes), ne humectants (a ɛyow brɛoo). Paw gyina substrate ne adwumayɛ ahwehwɛde so.

Fiberglass ntama a wɔatrɛw mu (ntama a wɔde asaawa ayɛ a ɛyɛ kɛse) yɛ soronko koraa wɔ ntama a wɔde fiberglass ayɛ a wɔtaa de di dwuma ho wɔ asaawa nhyehyɛe mu. Ɛdenam mframa a ano yɛ den a wɔde yɛ adwuma so no, wɔtetew ahwehwɛ nhama a ɛkɔ so no mu, twitwiw, na wɔde hyɛ asaawa a ɛyɛ kɛse te sɛ kotoku mu. Eyi ma ntama a ɛyɛ den, ɛyɛ mmerɛw a ɛwɔ ɔhyew a ɛkorɔn (mframa a wɔakyekyere no), ɛyɛ nea ɛne ne ho hyia yiye, ɛyɛ filtration efficiency a ɛkorɔn, ne tear/flex resistance a ɛkɔ anim – a ɛho ka yɛ den a ɛba fam kakra. Wɔde yɛ gasket a ɛyɛ hyew kɛse, paipu wraps, filter bags, ne oven seals.

Raw material ahotew ne fapem a PTFE a ɛkorɔn-ɔhyew ntama adwumayɛ. PTFE emulsion a ɛho tew kɛse (dade ions biara nni hɔ, nkae a emu duru sua biara nni mu) hwɛ hu sɛ ɔhyew a ɛko tia (ɛnyɛ kɔkɔɔ a ɛkɔ soro kodu 260°C), ɛnyɛ nea ɛbata ho a ɛyɛ den, na dielectric ahoɔden a ɛkorɔn. Wɔ fiberglass ho no, E-glass a alkali nnim (Na2O <0.8%) kura ahoɔden ne nea ɛbɔ ho ban wɔ ɔhyew a ɛkɔ soro mu; medium/high-alkali glass ma nneɛma sɛe. Sɛ woyi nneɛma a wɔde nwene kɛse fi hɔ koraa a, esiw carbonization ne delamination ano. Ahotew ka ɔsom nkwa, aduan-grade a wodi so, ne anyinam ahoɔden ahotoso so nkɛntɛnso tẽẽ.

Fiberglass ntama a wɔde di kan ma ɛyow yiye no ho hia kɛse ma PTFE a wɔde kata so akyiri yi, resin a wɔde bɛhyɛ mu, anaa lamination. Ayaresa atitiriw abiɛsa: nsu a woyi fi hɔ wɔ 105-120°C (simma 10-30 a egyina emu duru so), dewaxing/thermal cleaning wɔ 300-450°C (LOI <0.1%, kwati>500°C), ne preheating wɔ 60-100°C ansa na wɔde akata so. Di fononoo mu hyew a ɛyɛ pɛ (±5°C) so, hyɛ sɛ wɔma nsu fi mu, na bɔ ntama a wɔde silane ayɛ ho ban wɔ 110°C ase. Fa ntama a ayow sie nkotoku a wɔatoto mu anaa adan a ɛyɛ nwunu (<30°C, <40% RH).

Ɛkame ayɛ sɛ PTFE ntama a ɛyɛ hyew kɛse (PTFE-coated fiberglass) yɛ nea nnuru ntumi nyɛ adwuma, nanso nneɛma bi ma nsɛe wɔ tebea pɔtee bi mu. PTFE ntua tẽẽ ba wɔ alkali dade a wɔanwene (sodium, potassium), nneɛma a ɛyɛ den a ɛma fluorinating (F2, ClF3) wɔ ɔhyew a ɛkorɔn mu, ne alkali a ano yɛ den a wɔanwene a ɛboro 300°C so. Nsɛe a ɛnteɛ ba bere a hydrofluoric acid (HF), alkalis a ɛyɛ hyew a wɔahyɛ no den, anaa phosphoric acid a ɛyɛ hyew hyɛn nneɛma a wɔde kata so no mu sintɔ ahorow mu na ɛtow hyɛ fiberglass substrate no so no. Sɛ wopɛ nnuru a ɛtra so a, fa PTFE sini a ɛho tew a fiberglass nni mu di dwuma.

PTFE ntama a ɛyɛ hyew kɛse (PTFE-coated fiberglass) wɔ ɔhyew a ɛko tia a ɛkyɛn so wɔ ne dwumadi a ɛyɛ -70°C kosi 260°C mu. Etumi gyina ɔhyew kyinhyia a ɛkɔ ntɛmntɛm ano, s.e., sɛ efi -50°C frigye mu kɔ 260°C afiri a ɛyɛ hyew mu. Premium grades mpo tra ase sɛ onwini mpofirim fi 260°C kɔ 10°C nsu mu. Nanso, sɛ wobɔ ade no ahodwiriw fi ɔhyew a ɛboro 300°C (a ɛbɛn PTFE 327°C melting point) a, ɛbɛma mpaapaemu ne delamination ntɛm ara. Fiberglass substrate no ma dimensional gyina pintinn; PTFE a wɔde kata so no ne ade a ɛto ano hye.

Wɔde PTFE ntama a ɛyɛ hyew kɛse di dwuma kɛse wɔ nnuruyɛ mu ma nnwuma atitiriw ason: flange gaskets ne pipe linings (ɛko tia acid/alkali a ano yɛ den), reactor ne tank linings (ɛsiw dade nsɛe ano, ɛnyɛ den sɛ wobɛhohoro), filter bags ma corrosive flue gas (ɛkɔ 260°C), anti-corrosion expansion joints ma ducts, anti-adhesion welding pads, gyae ntama ma composite molding, ne anyinam ahoɔden / ɔhyew insulation wraps. FDA ne UL abasobɔde ahorow a ɛwɔ hɔ.