PTFE ƒe dzoxɔxɔ gã ƒe kasɛt la te ŋu nɔa te ɖe dze sisi nu nyuie ŋutɔ, gake nusiwo gbɔdzɔe nye nusi léna ɖe nu ŋu kple fiberglass substrate ƒe goawo. Dodokpɔmɔnu: 1000h neutral salt spray (NSS) dodokpɔ, dzidzedze le peel ƒe ŋusẽ léle ɖe te (≥80% hiã), ŋku ƒe gbɔdzɔgbɔdzɔ (kɔkɔ, blistering), kple ga substrate ƒe xɔxlɔ̃. Le ƒumelãwo kple nuto siwo me dze sɔ gbɔ ɖo gome la: zã silicone PSA (menye acrylic o), PTFE substrate si me wode tsii bliboe, tsɔ nutrenu si te ŋu nɔa te ɖe yame ƒe nɔnɔme nu xea goawo nu, eye nàtsɔ primer asisi ɖe ga ŋu.

Silicone pressure-sensitive adhesives (PSA) na PTFE dzoxɔxɔ gã ƒe kasɛtwo to vovo ŋutɔ le dzoxɔxɔ gã ƒe tsitsi ƒe dɔwɔwɔ me. Methylphenyl silicone PSA léa >85% ƒe lãgbalẽ ƒe ŋusẽ ɖe te le 250°C/ŋkeke 7 megbe, esime methyl ƒomevi si wozãna ɖaa la ɖiɖina va ɖoa 50-70%. Addition-cured (hydrosilylation) systems naa liƒo nyuitɔ sã wu peroxide-cured. Ne èdi be yeawɔ dɔ le 200°C+ si yia edzi la, tia phenyl ƒe dzesi siwo wotsɔ kpe ɖe wo ŋu siwo woda gbe le.

Ele be dzoxɔxɔ ƒe PTFE pressure-sensitive adhesive (PSA) tapes nakplɔ dzoxɔxɔ esime wole ƒoƒom. Fillers tsɔtsɔ kpe ɖe eŋu nana dzoxɔxɔ ƒe tsɔtsɔme nyona ɖe edzi gake egblẽa nu le adhesion ŋu. Dadasɔ nyuitɔ zãa nu suesuesue siwo le dzogoe ene me siwo le ƒuƒuie (abe ƒunukpeƒe si kplɔa nu ene) siwo wotsɔ tsaka kple nusue suesuesuewo (be woatsɔ ayɔ teƒe siwo le ƒuƒlu me), si wɔnɛ be agba si wotsɔ yɔa nuawo katã me nɔa tsi si sina toa eme ƒe dzidzenua dzi vie. Ƒo asa na flakes kple fibers; wowua tack.

PTFE dzoxɔxɔ gã tape subɔa PV dɔwɔƒea le akpa vovovo eve me: dɔwɔwɔ consumable (xea mɔ na EVA overflow adhesion le laminators, solder mask) kple agbe didi xɔxlɔ̃ (busbar wrap, junction box fixation). Be woazã ememe tegbee la, ele be kasɛtwo nato IEC 61215: 1000-2000h dzoxɔxɔ si me tsi le, UV, dzoxɔxɔ ƒe tsatsam (-40°C va ɖo +85°C), kple silicone PSA kple shrinkage <1%.

PTFE ƒe dzoxɔxɔ gã ƒe kasɛt si wotsɔ dea dzoxɔxɔ-nutrenu hɛwo kple nutrenu ƒe kakɛwo ŋu naa asixɔxɔ vevi ene: xea mɔ na plastik si wotsɔ ƒo ƒu ƒe ƒoƒo (eɖea ɣeyiɣi si me womewɔa dɔ o ɖa), ekpɔa nutrenu siwo xɔ asi ta, enaa dzoxɔxɔ/nyaƒoɖeamenu ɖeka hena nutrenu siwo nɔa anyi ɖaa, eye wòɖea film ƒe ʋuʋu dzi kpɔtɔna. Wokafui be woatsɔ fiberglass-backed tape (0.13-0.25 mm) si me silicone PSA (≥260°C) le. Anti-static black tape na fli siwo zɔna kabakaba.

Wokpɔa tsi ƒe dzoxɔxɔ mɔxenu ƒe nɔnɔme si le PTFE adhesive tape ŋu koŋ to nutsyɔnu ƒe gbɔdzɔgbɔdzɔwo (micropores, microcracks, fiber wicking) me tsɔ wu PTFE ƒe intrinsic hydrophobicity. Pure PTFE film naa WVTR si le titina ko. Multi-layer coating kple lamellar fillers (mica, glass flakes) wɔa labyrinth effect, si ɖea yaƒoƒo ƒe kaka dzi kpɔtɔna ŋutɔ. Ne èdi be yeatsɔ nutrenu si me fafa le ŋutɔ la, gblɔ nusiwo woatsɔ atsyɔ nu wo dzi siwo me wode tsii.

Le PTFE ƒe dzoxɔxɔ gã ƒe kasɛtwo gome le nyɔnyrɔ ɖe tsi me ɣeyiɣi didi me la, PTFE ƒe gɔmeɖoanyia gakpɔtɔ nyea atike si mewɔa dɔ o, gake nusi léna ɖe nu ŋu lae nye nusi gbɔdzɔ. Tsi gbɔdzɔa silicone PSA; dzetsi naa xɔxlɔ̃ kabakaba. Le atike sesẽwo gome la, fluorosilicone alo perfluoropolyether adhesives – alo PTFE tape si me aŋɔ mele o – hiã. Peel ƒe ŋusẽ bu va ɖo 40% le gaƒoƒo 48 le tsi me megbe.

PTFE ƒe dzoxɔxɔ gã ƒe kasɛt hiã be woadzrae ɖo nyuie be wòalé eƒe ƒoƒo ɖe nu ŋu, wòate ŋu atrɔ ɖe nɔnɔmewo ŋu, eye wòaɖe asi le eŋu ƒe dɔwɔwɔ. Nudidi veviwo dometɔ aɖewoe nye dzoxɔxɔ dzi ɖuɖu (10-30°C), fafa si mede 60% o, kekeli ƒe ƒoƒo asa na, atikewo ɖeɖe ɖe aga, wo ɖoɖo ɖe tsitrenu, kple yaƒoƒo. Dze FIFO ƒe nudzraɖoƒewo dzikpɔkpɔ dzi eye nàlé ŋku ɖe wo ŋu edziedzi.

Tiatia si wowɔ le pepa si woɖena ɖe go alo film substrate kple nusi ɖea asi le eŋu kpɔa ŋusẽ ɖe nudzraɖoƒe ƒe liƒo kple peeling dɔwɔwɔ dzi tẽ le PTFE ƒe dzoxɔxɔ gã tape. Nyati sia tsɔ PET vs. kraft paper substrates kple silicone vs. fluorinated release agents sɔ kple wo nɔewo, eye wòkafu nu nyuitɔ kekeake si woatsɔ aƒo ƒui na zero-residue peeling kple kakaɖedzi ɣeyiɣi didi.