Nyati sia ƒo nu tso Teflon avɔ si me dzoxɔxɔ le ŋutɔ (PTFE-coated fiberglass fabric) zazã le yamenutomeyimɔ̃wo me ŋu. Nu vevi siwo wozãna: Nu vovovowo wɔwɔ — ɖe asi le avɔ/film ŋu le autoclave molding, ɖekaɖeka ƒuƒoƒo, dzoxɔxɔ gã conveyor belts na prepreg wɔwɔ; Engine kple dzoxɔxɔ gã ƒe dzoxɔxɔ takpɔkpɔ — dzoxɔxɔ ƒe xɔxlɔ̃ avɔwo, dzodoƒe ƒe nutsyɔnu, dzoxɔxɔ gã ƒe kadodo siwo te ŋu trɔna; Elektrikŋusẽ ƒe xɔxlɔ̃ kple ka ƒe kaƒomɔ̃ takpɔkpɔ — ka babla ɖe mɔ̃a ƒe akpa vovovowo kple anyidzeƒe ƒe xɔwo me; Yameʋu ƒe eme kple dzo takpɔkpɔ — dzoxɔmetsovɔ/dzudzɔ mɔxenu siwo ɖo FST ƒe dzidzenuwo gbɔ, dzoxɔxɔ/gbeɖiɖi ƒe xɔxlɔ̃ blanket cladding; Yamenutome kple yamenutome dɔwɔwɔ — multi-layer insulation (MLI) kpekpewo, anti-cold-weld ami liners na ɣe ƒe mɔ̃wo zazã mɔ̃wo kple antenna hinges, dzoxɔxɔ dziɖuɖu avɔ.

Nyati sia ɖe alesi PTFE ƒe nutsyɔnu blana ɖe fiberglass avɔ ƒe anyigba si le Teflon avɔ si me dzoxɔxɔ le ŋutɔ me la me. Atikewo ƒe kadodo tẽ manya wɔ o le PTFE ƒe anyigbadziŋusẽ si bɔbɔ ŋutɔ ta. Wowɔa kadodo to: Mɔ̃wo ƒe kadodo (ŋutilã ƒe kadodo) — PTFE emulsion gena ɖe ka ƒe dometsotsowo me eye wòléa ka bablawo le sintering vɔ megbe; Silane coupling agent pretreatment — wɔa molecule tɔdzisasrã le inorganic glass fibers kple organic primer dome; Chemical primer transition layer — zã PAI, PPS, PES alo PEEK resins kple PTFE micropowder, si wotsɔ de coupling dɔdamɔnu megbe be woawɔ tɔtrɔ ƒe ƒuƒoƒo sesẽ; Hot-melt adhesive film lamination — FEP alo PFA filmwo (melting point 260-310°C) blaa PTFE film siwo wowɔ do ŋgɔ ɖe avɔ ŋu; Gradient wɔwɔme to impregnation geɖe kple sintering tsatsam — dilute gbãtɔ yi kple binder / coupling agent gena ɖe gogloƒe ɖe fibers, kplɔe ɖo dzadzɛ PTFE impregnations, wɔa compositional gradient tso fiberglass yi dzadzɛ PTFE.

Nyati sia ƒo nu tso alesi microporous structure design of breathable Teflon (PTFE) high-temperature tape na ya ƒe gege ɖe eme kple nusiwo xea mɔ na ya kple nusiwo meléna o ƒe nɔnɔmewo da sɔ ŋu. Nu veviwo ƒe dzrewɔwɔ: ya ƒe gege ɖe eme bia be ʋuʋudedi naʋu, gake nusiwo wotsɔ xea mɔ na ya bia be woaƒo ƒu eye esiwo meléna o bia be woawɔ nusiwo le gbadzaa. Aɖaŋuɖoɖo ƒe mɔnu siwo da sɔ: akpɔ ʋuʋudedi ƒe didime le mama dedie nu (0.1-2μm, ne enyo wu la, <0.5μm) dzi be woaxe mɔ ɖe ʋuʋudedi ƒe gege ɖe eme nu eye woalé ʋuʋudedi ƒe ʋuʋudedi me ɖe asi; dziɖuɖu porosity le 50-70% (≈60% nyuitɔ kekeake) gbɔ ɖoɖo Gurley 20-100s / 100cc kple dielectric ŋusẽ ≥2kV na 0.13mm film; xɔ 3D network pore structure (τ≈2.5-4) si me tortuosity gã le be woatsɔ axe mɔ siwo dzi woɖea tsi le tẽe la nu; tu asymmetric gradient pore structure kple dense surface skin layer (1-5μm) na non-stick/insulation kple porous ememe na gbɔgbɔ; de super-oleophobic/hydrophobic anyigba dzi le atikewɔwɔ vɔ megbe evɔ pore blockage manɔmee.

Nyati sia na egbɔkpɔnu siwo wowɔ ɖe ɖoɖo nu hena mɔxexe ɖe adhesive ƒe nugbagbevi kple adhesive ƒe ʋu si dona ne wozã PTFE ƒe dzoxɔxɔ gã ƒe tape tsɔ kpɔa PCB sika asibidɛwo ta le SMT ƒe kpekpe me. Nusi gbɔ wòtso ƒe numekuku: nusiwo susɔ dzɔna tso cohesive kpododonu alo interfacial transfer me; ʋu dona tso viscosity drop kple adhesive overflow le reflow dzoxɔxɔ te. Core solution nye tape tiatia nyuie: silicone PSA kple ɣeyiɣi kpui aɖe ƒe taƒoƒo ≥300 ° C, madzudzɔmadzudzɔe ≥260 ° C, total titrime 0.08-0.13mm kple tsɛ high-cohesion adhesive ƒuƒoƒo, kple anti-ʋu/nu susɔe-maɖe ɖaseɖigbalẽ. Afɔɖeɖe ade ƒe dɔwɔwɔ dzi kpɔkpɔ: dzadzɛnyenye do ŋgɔ na lamination kple IPA; zero-tension lamination kple ya ƒe ʋuʋu blibo; dzoxɔxɔ ƒe nɔnɔmetata si wowɔ nyuie wu le reflow me kple dzoxɔxɔ fafɛ (<2°C/s); vuvɔ ƒe ʋuʋu le 50°C te le 180° ƒe dzogoe dzi; dɔwɔwɔ enumake le gaƒoƒo 24 me eye woazãe zi ɖeka ko; kpododonu gbɔ kpɔkpɔ kple IPA tutu kple 40-50x magnifier ƒe ŋkuléle ɖe nu ŋu. Le PCB siwo ƒe axa eve le gome la, tsɔ kasɛt yeye ɖɔ li wo hafi nàwɔ dɔ le akpa evelia ŋu.

Nyati sia na mɔfiame siwo wowɔ ɖe ɖoɖo nu le mɔxexe ɖe flitete nu le PTFE avɔ si me dzoxɔxɔ le ŋutɔ ŋu le sintering me. Dzoxɔxɔ ƒe ʋuʋu si mesɔ o kple nuteɖeamedzi si mewɔ ɖeka o gbɔe flitete tsona koŋ. Egbɔkpɔnuwo ƒo nu tso dɔwɔwɔ bliboa ŋu: nu xoxowo ƒe substrate dziɖuɖu (dewaxing/dzoxɔxɔ ƒe ɖoɖo bliboe be woaɖe ememe nuteɖeamedzi ɖa); tsidedee kple etutu (nu tsɛ geɖe siwo wotsɔ blaa nu, dzoxɔxɔ ƒe ɖiɖi fafɛ, ʋukuku ƒe ʋuƒo siwo le dɔ wɔm); sintering dzodoƒe dziɖuɖu (1-3% nuɖuɖu fũu akpa na dzoxɔxɔ ƒe shrinkage mɔɖeɖe, closed-loop micro-tension dziɖuɖu, transverse dzoxɔxɔ ɖekawɔwɔ le ±5 ° C, gradient preheating-sintering-fafa curve, ya-flotation dzodoƒewo abe egbɔkpɔnu nyuitɔ kekeake, curved kaka rollers); fafa kple ɖoɖowɔwɔ (fafa vivivi, lée ɖe te be wòakaka vaseɖe esime wòade 100°C, fafa blibo hafi nàƒoe); ŋkuléle ɖe nu ŋu le Internet dzi kple kekeli ƒe ŋkuléle ɖe nu ŋu sesĩe kple infrared scanning.

Nyati sia ƒo nu tso fafa ƒe agbɔsɔsɔme si hiã le PTFE ƒe avɔ si me dzoxɔxɔ le ŋutɔ ƒe ƒoƒo me ŋu. Ne wotsɔ avɔa ƒoe le dzoxɔxɔ 380-400°C me vɔ la, ele be wòato nuto si me kristalo ƒe dzoxɔxɔ le 310-315°C me kabakaba. Fafa ƒe agbɔsɔsɔme si wokafu enye 30-50°C/min ya teti (avɔ tsɛ ate ŋu aɖo 100-200°C/min to ya fafɛ me). Fafa kabakaba (tsitretsitsi) naa kristalo me mekɔna o (45-50%), si naa nusiwo wotsɔ blaa nu falɛfalɛ siwo sesẽ eye woƒe anyigba le gbadzaa, woléna ɖe wo nɔewo ŋu sesĩe, wowɔa dɔ nyuie si me meléna o, eye wotsia tre ɖe delamination kple gbagbã ŋu. Fafa blewu (dzodoƒe ƒe fafa) nana kristalo ƒe ʋeʋẽ lilili (60-70%), si wɔnɛ be nusiwo wotsɔ blaa nu sesẽ, siwo megbãna o, siwo te ŋu tsia, ʋuʋuna eye wogbãna suesuesuewo.

Nyati sia tsɔ xɔme ƒe dzoxɔxɔ kple dzoxɔxɔ gã ƒe tsitsi sɔ kple silicone pressure-sensitive adhesive na PTFE tape. Dzoxɔxɔ gã ƒe tsitsi (120-180°C) naa crosslinked networks dense siwo ŋu ŋusẽ sesẽ si ƒoa ƒu ɖo, si xea mɔ na adhesive ƒe nugbagbevi siwo susɔ le wo ɖeɖe vɔ megbe. Ewɔa atikewo ƒe seke ƒe kadodowo kple PTFE substrates to primer co-curing dzi, si ɖea delamination ƒe afɔkuwo ɖa. Dzoxɔxɔ gã ƒe tsitsi hã ɖea nusiwo me molecule suewo ƒe dzoxɔxɔ le ɖa hafi wotsɔa wo vɛ, si xea mɔ na bubbling kple silicone ami ƒe ɖiƒoƒo le dzoxɔxɔ gbãtɔ me.

Mɔfiame sia ƒo nu tso PTFE dzoxɔxɔ gã tape tiatia na injection molding demolding kple anti-stick dɔwɔwɔwo. Tiatia si wotu ɖe dzoxɔxɔ dzi: ≤260°C na plastik siwo wozãna le xexeame katã (silikon PSA kasɛt si wozãna ɖaa, 0.13-0.18mm); 260-300°C na mɔ̃ɖaŋununya ƒe plastik siwo ƒe dzoxɔxɔ lolo abe PC, PA66, POM (silicone adhesive si ƒe dzoxɔxɔ lolo, 0.18-0.25mm); 300-400°C na PEEK, LCP, PPS si te ɖe duƒula dzodzoewo ŋu (adhesive tape do kpo nu; zã PTFE avɔ si me nulénu mele o alo PFA film). Tiatia si wotu ɖe nusiwo wotsɔ wɔe dzi: nusiwo tacky hiã PTFE dzadzɛ siwo woɖena ɖe go ŋutɔ; glass/mineral yɔ fũu nuwo hiã na kpekpeme-dɔ 0.25mm + wear-tsitretsitsi tape; nusiwo wotsɔ kpena ɖe nu ŋu siwo gblẽa nu le ame ŋu bia be woatsɔ atike si te ŋu nɔa te ɖe nulénu nu kple nusi le ʋeʋẽm; static-sensitive dɔwɔwɔwo hiã anti-static yevu PTFE tape.

Wowɔa avɔ si ƒe dzoxɔxɔ lolo PTFE si te ŋu léa nu geɖe to PTFE tsyɔtsyɔ ɖe fiberglass avɔ si ŋu ŋusẽ le ŋutɔ dzi, si naa ŋusẽ si te ŋu léa nu, dzoxɔxɔ si te ŋu nɔa te ɖe nu ŋu, nɔnɔme siwo me meléna o, atikewo ƒe tsitretsitsi, kple ʋuʋudedi si mebɔ o. Dɔ vevi siwo wozãna dometɔ aɖewoe nye: dɔwɔƒewo ƒe tsɔtsɔ yi teƒe bubuwo (dzoxɔxɔ ƒe nubablɛwo, nuɖuɖu ɖaɖa, avɔlɔ̃mɔ̃wo, pepa/film ƒuƒu); composite molding release avɔ kple dzodzoe nyadzɔdzɔŋlɔla cushion liners; xɔmetsovɔ siwo kpɔa ame ta kple dzoxɔxɔnutsitikewo tsɔtsɔ ƒo ƒui; elektrikmɔ̃ kple transformer ƒe nusiwo xea mɔ na dzoxɔxɔ; bearing siwo wotsɔna ƒua du kple pɔmpiwo ƒe kpeɖeŋutɔ tutu; atikewo ɖeɖeɖa kple valvɔ nutrenu le nuto siwo me nu gblẽna le me. Tensile ŋusẽ gã nana be enɔa anyi didina le tete, vuvu, ƒoƒo enuenu, kple dzoxɔxɔ gã mɔ̃ ƒe nuteɖeamedzi le dɔ sesẽ vovovo siawo me.

Le sintering me la, PTFE ƒe akpa siwo le fiberglass avɔ dzi la ƒuna wu 327°C, si gblẽa lamelae gbãtɔ siwo wotsɔ kɔsɔkɔsɔ si woxatsa kple nusuewo ƒe liƒowo dome tsɔ wɔa amorphous melt. Ne PTFE fa la, egatrɔna zua spherulites siwo me lamellae siwo le radially oriented le, kple kristalo ƒe 50–70%. Fafa ƒe agbɔsɔsɔme ye afia kristalo ƒe blibodede: fafa blewu naa kristalo ƒe nɔnɔme si lolo wu, spherulites lolo wu, sesẽme geɖe wu; ne wotsi kabakaba la, enaa spherulites nyo wu eye wòte ŋu trɔna ɖe nɔnɔmewo ŋu nyuie wu.