PTFE ƒe dzoxɔxɔ gã ƒe kasɛt si wotsɔ dea dzoxɔxɔ-nutrenu hɛwo kple nutrenu ƒe kakɛwo ŋu naa asixɔxɔ vevi ene: xea mɔ na aŋe 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.

PTFE ƒe dzoxɔxɔ gã ƒe adhesive tape ƒe creep tsitretsitsi le ɣeyiɣi didi ƒe agba madzudzɔmadzudzɔe te (vevietɔ le 200-260°C) la, wotsɔa nu eve dea dzesii: silicone PSA crosslink density (crosslinking si lolo wu xea mɔ na sisi) kple substrate ƒomevi (fiberglass-reinforced PTFE tsi tre ɖe cold creep ŋu; pure PTFE film creepps). Aŋe si wometsɔ ka blae o la doa kpo nu kabakaba ne dzoxɔxɔ sesẽ. Nusiwo wotsɔna léa nu ɖe ​​nu ŋu siwo le kpekpem wu dzia afɔku si le ʋuʋu me ɖe edzi.

Le PTFE dzoxɔxɔ gã tape si wozãna le abrasive sliding friction dɔwɔwɔwo, dzidzenu non-stick kple dzoxɔxɔ tsitretsitsi mesɔ gbɔ o. Tiatia ƒe dzidzenu veviwo: Taber abrasion ƒe bu (<15 mg/1000 cycles), PTFE ƒe nutsyɔnu si woɖɔli si yɔ fũu (carbon/graphite/MoS2), PV seɖoƒe ŋuti nyatakakawo, substrate ƒe ŋusẽ (≥200 N/cm), kple mating surface roughness (Ra 0.2-0.4 μm). Nugbɔ takpɔkpɔ nyuie kple eƒe kadodo blibo le vevie ŋutɔ na agbenɔƒe didi.

PTFE substrate nye dzetsi si wotsɔna ƒua gbe le dzɔdzɔme nu (tsi ƒe xɔxlɔ̃ <0.01%). Ke hã, tape ƒe dɔwɔwɔ bliboa nɔ te ɖe adhesive ƒomevi dzi: silicone PSA te ŋu nɔa te ɖe ƒumelãwo ƒe nɔnɔmewo nu (500-1000h dze sisi dodokpɔwo,>80% peel retention); acrylic PSA do kpo nu. Atikewɔwɔ nyuie le anyigba dzi, kuɖɔ manɔmee, kple nutrenu kple silicone nutrenu le nugbɔ le vevie ŋutɔ be kakaɖedzi nanɔ eŋu ɣeyiɣi didi le ƒuta nuƒolanɔƒewo kple tɔdziʋuwo.

PTFE fiberglass tape hiã dedienɔnɔ ŋuti ɖaseɖigbalẽ vevi etɔ̃: UL (elektrik kple dzo ƒe dedienɔnɔ), FDA (nuɖuɖu ƒe kadodo ƒe sedziwɔwɔ), kple ISO 9001:2015 (nyonyo dzi kpɔkpɔ). Kasɛt siwo ŋu woɖo kpee naa dɔwɔwɔ ɣesiaɣi, woƒe agbenɔƒe didi wu, eye ga si wozãna ɖe wo tɔ ta katã dzi ɖena kpɔtɔna togbɔ be ga si wozãna do ŋgɔ la lolo wu hã. Kpɔ ɖaseɖigbalẽwo dzi tẽ ɣesiaɣi kple dɔwɔƒe siwo naa ɖaseɖigbalẽwo.

Wozãa PTFE ƒe dzoxɔxɔ gã ƒe kasɛt le atikewɔwɔ ƒe akpa etɔ̃ me: dɔlékuiwutikewo takpɔkpɔ (autoclave trays, heat-seal packaging), dɔwɔnu ƒe anyigba dzi dɔdamɔnu (low-friction coating, electrical insulation), kple mɔ̃ siwo woate ŋu ade ame me (vascular grafts, sutures). Woto ISO 10993 dzi ɖo kpe nugbagbewo ƒe ɖekawɔwɔ dzi, eye FDA 21 CFR 177.1550 ɖo gɔmeɖoanyi nuwo ƒe dedienɔnɔ anyi.

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.

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.