PTFE ntama a wɔde to paanoo a ɛyɛ hyew kɛse no de mfaso atitiriw anan ma: adwumayɛ a ɛnyɛ nea ɛbata ho (ɛho nhia ngo anaa esiam, paanoo a ɛyɛ mmerɛw no gyae ma ɛho tew), ɔhyew a ɛtrɛw (-70°C kosi 260°C, ahobammɔ ma fononoo kɔ frigye mu), wotumi san de di dwuma bio (kyinhyia mpempem pii, ɛnyɛ den sɛ wobɛhohoro), ne ɔhyew a ɛkɔ mpo (ɛsiw ɔhyew ano, browning a ɛkari pɛ). Aduan-grade FDA compliant, wɔtra hɔ kyɛ sen parchment krataa na wɔyɛ adwuma sen silicone mats a ɔhyew a ɛkɔ yiye na ɛyɛ fɛ ne soro texture.

PTFE ntama a ɛyɛ hyew kɛse ho hia wɔ ntade a wɔde hyɛ ntam adwuma mu. Nneɛma atitiriw a wɔde di dwuma: conveyor belts a enni awiei a wɔde kɔ so fusing mfiri (ɛsiw ɔhyew a ɛyɛ hyew adhesive a ɛbata ho, wrinkle-free conveying), non-stick cover ne padding ntama ma flat heat press (ɛbɔ platens ho ban fi adhesive efĩ ho), conveyor belts ma dot paste/powder coating lines (ɛkura adhesive dots a enni dɛm bere a ɛyow/sintering), ne dade mpaboa kataso a wɔde yɛ nhwɛsode a wɔde mia. Ne kɛse fi 0.13mm (hare padding) kosi 0.55mm (heavy-duty conveyor belts).

Fiberglass ntama thermal shrinkage ne ade titiriw a ɛde PTFE tape dimensional instability ba. Wɔ PTFE sintering hyew (360-400°C) mu no, wogyae nwene nhyɛso a aka no. Sɛ wɔanhyɛ no so a, ntama no twetwe; sɛ wɔhyɛ so a, wɔto nhyɛso a ahintaw mu, na ɛma akyiri yi ɛtwetwe bere a wɔde ntama resa (150-200°C) ne ɔhyew a wɔde di dwuma awiei no. Ano aduru: fa fiberglass a wɔadi kan ayɛ no hyew a ɛyɛ <0.5% a ɛtwetwe wɔ 400°C di dwuma, na yi nhyɛso a aka no fi hɔ ansa na wode akata so.

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 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 ɛdɔɔso) 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.

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 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.

PTFE ntama a ɛyɛ hyew kɛse (PTFE-coated fiberglass) de mfaso atitiriw anan ma sɛ anti-corrosion lining: nnuru a ɛnyɛ adwuma (ɛko tia aqua regia, alkalis a ɛyɛ den, solvents), ɔhyew a ɛtrɛw (-70°C kosi 260°C kɔ so, 350°C peak), dimensional stability (<0.5% elongation), ne non-stick surface (ɛnyɛ den ahotew, siw nneɛma a ɛbɛboaboa ano ano). Wɔde di dwuma wɔ nnuru a wɔde fa nsu mu, abantenten a wɔde yi sulfur fi mu, nsukorabea a wɔde nsu gu mu, ne nnuan/nnuruyɛ mfiri mu. FDA abasobɔde ahorow a ɛwɔ hɔ.