PTFE dzoxɔxɔ gã avɔ si xea mɔ na gaskets ƒoa dielectric ŋusẽ gã (si li ke le fafa te), -70 ° C va ɖo 260 ° C dzoxɔxɔ dometsotso, xexeame katã ƒe atikewo ƒe tsitretsitsi (negbe alkali ga siwo wotsɔ ƒo ƒu), non-stick surface (xea mɔ na creepage), anti-creep (fiberglass ŋusẽdodo vs. dzadzɛ PTFE), tensile ŋusẽ gã, low friction (μ=0.05-0.1), kple V-0 dzobibi ƒe dzeside. Ne wotsɔe sɔ kple mica, rababa, kple PTFE gasket dzadzɛwo la, PTFE avɔ naa woate ŋu atrɔ ɖe nɔnɔmewo ŋu nyuie wu, woate ŋu awɔ dɔ tso eŋu, eye wòte ŋu nɔa te ɖe didime nu ɣeyiɣi didi. Enyo ŋutɔ na transformers, motor insulation, atike flange nutrenu, kple semiconductor dɔwɔnuwo.

PTFE avɔ ƒe gbadzaƒe le sintering me bia be woakpɔ tete, dzoxɔxɔ, kple mɔxexeɖenu dzi pɛpɛpɛ. Mɔnu veviwo: stenter mɔ̃ (pin plates léa kekeme ɖe te, xea mɔ na weft ƒe ɖeɖe), gradient temperature profile (dzoxɔxɔ blewu → 380-400°C hold → blewu fafa le 310°C te hafi ɖea asi le tension), pre-shrunk substrate (ɖea weaving stress hafi coating), kple uniform coating thickness (xea mɔ na differential melting). Ele be woalé stenter ƒe mɔxexe ɖe enu me ɖe asi vaseɖe esime wòafa le PTFE ƒe kristalo ƒe teƒe (anɔ abe 310°C ene) te be woaxe mɔ ɖe aʋawɔwɔ nu.

Coating ɖekawɔwɔ le PTFE emulsion impregnation le fiberglass avɔ nye agbemɔ na adzɔnu ƒe nyonyome. Nusiwo wotsɔ blaa nu si mesɔ o hea: nusiwo meléna ɖe nu ŋu o (eléna ɖe teƒe tsɛwo), mɔ̃wo ƒe gbɔdzɔgbɔdzɔ (nuteɖeamedzi ƒe agbɔsɔsɔ, vuvu), elektrikŋusẽ ƒe malikenyenye (ʋuʋudedi ƒe ʋuʋudedi ɖiɖina va ɖoa 1/10), atikewo ƒe gege ɖe eme (pinhole ƒe xɔxlɔ̃), didime ƒe nyawo (warpage), kple dɔwɔwɔ ƒe gbɔdzɔgbɔdzɔ (belt wandering, thickness variation). Nu ɖekawɔwɔ ƒe nutsyɔtsyɔ bia be woakpɔ emulsion ƒe ʋeʋẽ, nu sesẽ siwo le eme, avɔ ƒe tete, squeeze gaps, kple multi-zone drying/sintering profiles dzi pɛpɛpɛ.

PTFE avɔ si ƒe dzoxɔxɔ lolo la toa xɔtuɖoɖo ƒe tɔtrɔ ƒe akpa ene me ne dzoxɔxɔ le dzi yim: le 260°C te – micro-cracking blewu kple residual additive volatilization; le 327°C (melting point) – kristalo-to-amorphous ƒe tɔtrɔ, nusi wotsɔ blae la fa, delaminate tso fiberglass me; 400-500°C – PTFE ɖea polymerize ɖa (eɖea aɖi ya ɖa), nusi wotsɔ blae la nu yina; wu 500°C – fiberglass fa (840°C fafɛƒe) eye wòbua xɔtuɖoɖo ƒe blibonyenye. Nɔ 260°C te ɖaa, ƒo asa na >300°C ƒe taƒoƒo hena dɔwɔwɔ dedie.

PTFE dzoxɔxɔ gã avɔ yame atikewɔwɔ gblẽa atike ƒe dɔmawɔmawɔ na kadodo / agbalẽtata. Mɔnu ene: atikewo ƒe nuŋɔŋlɔ (sodium-naphthalene, anyigbadziŋusẽ 20→40-50 dyn/cm, viviti si nɔa anyi ɖaa, micro-porous structure), plasma-dɔdamɔnu (nano-roughening, dɔwɔwɔ ƒe ƒuƒoƒo ƒe grafting, fesre kpui si le dɔ wɔm), corona-dɔdamɔnu (thin-film, gbegblẽ kabakaba, goglome si seɖoƒe li na), kple laser-dɔdamɔnu (precision micro-patterning, controlled carbonization). Mɔnuwo katã naa ŋutilã me ƒuna eye wotsɔa atike dea polar ƒuƒoƒowo (C=O, -OH, -COOH) me be woate ŋu abla ɖe adhesive ŋu.

Nu xoxowo ƒe dzadzɛnyenye nye gɔmeɖoanyi vevitɔ na PTFE avɔ ƒe nyonyome si me dzoxɔxɔ le ŋutɔ. Ðiƒoƒowo (nu siwo susɔ siwo dzea dɔ gɔme, nusiwo wɔa dɔ ɖe anyigba dzi, ga ions, lolomedzidzenu siwo ŋu ɖiƒoƒo le) nana dzoxɔxɔ ƒe gbegblẽ kaba (kuɖɔwo, ʋuʋudedi siwo wu 260°C), anyigba siwo me meléna o siwo mesɔ o (adhesion anchor points), elektrikŋusẽ ƒe xɔxlɔ̃ dzi ɖena kpɔtɔna (dielectric ƒe bu, gbagbã ƒe ʋuʋudedi si bɔbɔ ɖe anyi), mɔ̃ ƒe ŋusẽ gbɔdzɔna (stress concentration, cracking), kple ɣie/amadede ƒe tɔtrɔ. Nu xoxo siwo le dzadzɛ ŋutɔ kpɔa egbɔ be wowɔ PTFE avɔ si wɔ ɖeka kple FDA, si nɔa agbe didi, si wɔa dɔ nyuie.

PTFE-si wotsɔ fiberglass avɔ sintering bia ɣeyiɣi si sɔ pɛpɛpɛ be woalée ɖe 370-400°C. Dzodoƒe siwo yia edzi: 30-90s (le sue) va ɖo 3-5+ min (titrime). Dzodoƒe siwo wotsɔa hatsotsowo wɔe: 5-15 min. Ne wometsɔ tsi ƒoe nyuie o naa nusiwo me mekɔ o, siwo me mekɔ o, siwo le ƒuƒuie, siwo ƒuna; ne wotsɔe ƒu gbe fũ akpa nana wòzua ɣie, wògbãna, eye aɖi si nye fluoride gas dona. Dɔwɔwɔ ƒe nyonyome: zã dzodoƒe ƒe dzoxɔxɔdzidzenu, wɔ ŋkuléle ɖe nu ŋu (si me kɔ afã kple afã, si te ŋu trɔna bɔbɔe), eye nàwɔ tepe hehe dodokpɔwo. Kpɔ egbɔ ɣesiaɣi be dzoxɔxɔ si ƒe titrime bliboa sɔ.

PTFE avɔ si me dzoxɔxɔ le ŋutɔ hiã be woalé ŋku ɖe eŋu nyuie be woakpɔ egbɔ be ele dedie eye wòanɔ agbe didi. Mɔxexeɖenu veviwo: mègawu 260°C gbeɖe o (ne wu 320°C naa dzudzɔ si me aɖi le dona), mègaƒo asa na ʋuʋudedi ɖaɖɛwo (egbãa nusi wotsɔ blae, enaa fiberglass dona), mègakɔ nu ŋu o (ga ƒe lãfu gblẽa nu le nusi meléna o ŋu), dzra dzoxɔxɔ ƒe kekeɖenudɔa ɖo (exea mɔ na eƒe vuvu), eye nàɖɔlii ne ʋuʋudedi alo ʋuʋudedi le eŋu. Fiase si woxatsa, si le adzɔge tso UV gbɔ. Do asigɛ siwo xea mɔ na dzoxɔxɔ ne èle wo zãm.

PTFE avɔ si me dzoxɔxɔ le ŋutɔ ƒe dzoxɔxɔ ƒe kekeɖenudɔwɔwɔ (CTE) ƒe xexlẽdzesi nye 30-60 ppm/°C (warp/weft) – ekɔ wu fiberglass ɖeɖeko gake ebɔbɔ kura wu PTFE dzadzɛ (100-200 ppm/°C). PTFE toa gbeɖiɖi ƒe tɔtrɔ kpata (1-2%) me le 19°C kple 30°C ƒe akpa ƒe tɔtrɔwo me. Be nàƒo asa na buckling, tearing, kple delamination: wɔ clearances hena kekeɖenudɔwɔwɔ faa, ƒo asa na tensioning to phase transition temperatures, zã automatic tensioners ɖe conveyor belts dzi, eye nàwɔ anti-buckling overlap design. Ele vevie be woalé ŋku ɖe tsi si le sisim le vuvɔ me ŋu edziedzi.

PTFE avɔ ƒe abolomegba siwo ƒe dzoxɔxɔ lolo la naa viɖe vevi ene: woƒe dɔwɔwɔ si meléna ɖe nu ŋu o (mehiã be ami alo wɔ o, abolomegba siwo me wodea nu viviwoe dona le dzadzɛnyenye me), dzoxɔxɔ si keke ta (-70°C va ɖo 260°C, ele dedie na dzodoƒe yi nufamɔ̃ me), woate ŋu azãe ake (woƒe tsatsam akpe geɖe, wo ŋu kɔklɔ le bɔbɔe), kple dzoxɔxɔ ƒe tsɔtsɔ gɔ̃ hã (exea mɔ na dzobibi, browning si da sɔ). Wonɔa agbe didi wu lãgbalẽgbalẽ si wotsɔa lãgbalẽ wɔe eye wowɔa dɔ wu silicon-mats siwo ƒe dzoxɔxɔ ƒe tsɔtsɔ yi teƒe bubu nyuie wu eye woƒe gowo ƒe nɔnɔme le nyuie wu.