Dzadzɛnyenye kple beléle nɛ nyuie didia PTFE avɔ si me dzoxɔxɔ le ŋutɔ ƒe agbenɔƒe ɖe edzi. Klɔe le eŋudɔwɔwɔ vɔ megbe kple le fafa vɔ megbe. Zã brɔs falɛfalɛwo, atike siwo mewɔa akpa aɖeke o, alo aha sesẽ hena ɖiƒoƒo. Mègazã acid/alkali sesẽwo, bleach, alo ga tsɔtsrɔ̃ gbeɖe o. Silicone-mi sisi edziedzi ɖea eƒe vuvu dzi kpɔtɔna. Wɔ ɖe mɔfiame siawo dzi be nàxe mɔ ɖe nusiwo wotsɔ blae nu.

PTFE ƒe dzoxɔxɔ gã ƒe tape mete ŋu nɔa te ɖe keklẽŋusẽ si nye ionizing radiation nu nyuie o. Le gamma 1 kGy ko me la, tensile ŋusẽ ɖiɖina va ɖoa ~25% le gbãtɔ me. Esɔ na nuto siwo me womezãa atike suewo le o (nuɖuɖu/atikewɔwɔ me vidzidzi <10 kGy) ko. Le nuklia dɔwɔƒewo alo yamenutomeyimɔ̃wo gome la, zã polyimide alo PEEK ɖe eteƒe.

PTFE emulsion ƒe nyonyome dodokpɔ lɔ nu vevi ade ɖe eme: nu sesẽ siwo le eme (60±2% le T/FSI ɖesiaɖe me 067-2021), pH (9.0-11.0), nusuewo ƒe lolome mama (laser diffraction/DLS), eƒe ʋeʋẽ (12-30 mPa·s le 25°C), eƒe liƒo (centrifugal, dzoxɔxɔ, tsikpe-tsikpe), kple eƒe dzedzeme. Mɔfiame sia ƒo nu tso dodokpɔmɔnu siwo wozãna ɖaa ŋu na parameter ɖesiaɖe.

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.

Ele be PTFE ƒe dzoxɔxɔ gã ƒe kasɛt si wozãna le nuɖuɖu ƒe kadododɔwo me nanɔ dzoxɔxɔ ƒe seɖoƒe siwo woɖo me: ≤260°C na zazã atraɖii, ≤300°C na eƒe kɔkɔƒe kpuiwo (aɖabaƒoƒo), eye gbeɖe wu 327°C (gbegblẽ). FDA kple EU ƒe sewo megblɔ ɣeyiɣi si woɖo ɖi na xexeame katã o – ɣeyiɣi didi si woatsɔ aƒo ka na ame le dedie nɔ te ɖe dzoxɔxɔ dzi eye ele be woaɖo kpe edzi to ʋuʋu ƒe dodokpɔ siwo srɔ̃a nɔnɔme ŋutɔŋutɔwo me.

PTFE avɔ si ƒe dzoxɔxɔ lolo kple silicone avɔ siaa zãa fiberglass avɔ abe gɔmeɖoanyi ene gake woto vovo le nusi wotsɔ blaa nu me (PTFE resin vs silicone rubber). PTFE nyo wu le nusiwo meléna o, tsitretsitsi ɖe nudodo ŋu, kple atikewo ƒe tsitretsitsi vaseɖe 260°C me. Silicone avɔ naa woate ŋu atrɔ ɖe nɔnɔmewo ŋu nyuie wu, elektrikŋusẽ te ŋu xea mɔ na wo, eye dzo mete ŋu nɔa te ɖe enu o (si ade 230°C). Tiae le nusi nètsɔ ɖo nɔƒe gbãtɔ nu.

PTFE dzoxɔxɔ gã avɔ (PTFE membrane nu) nye tiatia nyuitɔ kekeake na tensile xɔtuɖaŋu. Viɖe veviwo: ƒe 30+ ƒe gota agbenɔnɔ, anyigba si dzi woate ŋu akɔ eɖokui ɖo (tsidzadza klɔa ɖi), kekeli falɛfalɛ ƒe kaka (6-13%), Dzo ƒe dzeside si le Klass A, kple ŋusẽ si le abe gakpo ene si mede 1.5 kg/m2 o. Wozãnɛ le bɔlƒoƒewo, yameʋudzeƒewo, kple xɔ siwo nye dzesiwo le xexeame katã.

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.

PTFE ƒe dzoxɔxɔ gã ƒe kasɛt nyuitɔ tiatia na 3D agbalẽtamɔ̃ ƒe aba dzodzoe bia be woalé fɔ ɖe dzesi vevi ene ŋu: dzoxɔxɔ ƒe tsitretsitsi (vaseɖe 260°C+), nusi wotsɔ fiberglass do ŋusẽe (0.18mm nyuitɔ), silicone adhesive backing kple non-stick etame, kple kekeme/mɔɖeɖe ɖe nu ŋu nyuie. Mɔfiame sia kpena ɖe ŋuwò be màƒo asa na ʋuʋudedi, nusiwo susɔ, kple agbalẽtata ƒe kpododonu.

Glass ƒe tɔtrɔ ƒe dzoxɔxɔ (Tg) si le silicone ƒe nyaƒoɖeamenu-sensitive adhesive me anɔ abe -120°C – si bɔbɔ kura wu acrylic adhesives. Tg sia si bɔbɔ ŋutɔ la nana PTFE ƒe dzoxɔxɔ gã ƒe tape nɔa te sesĩe eye wòléna ɖe nu ŋu le -70°C gɔ̃ hã, si xea mɔ na brittle gbagbã eye wònana woate ŋu alé ɖe nu ŋu si ŋu kakaɖedzi le le cryogenic dɔwɔwɔwo me.