Nkhaniyi ikukhudzana ndi zizindikiro zazikulu za PTFE tepi yotentha kwambiri yomwe imagwiritsidwa ntchito popaka vacuum, chithandizo cha kutentha kwa vacuum ndi malo ofanana. Zofunikira zazikulu zimasiyana kwambiri ndi kugwiritsa ntchito mlengalenga: kutulutsa mpweya ndikovuta kwambiri (TML≤1%, CVCM≤0.1%; magalasi owulutsa ndege / kuwala amafuna TML≤0.5%, CVCM≤0.01%); kukana kutentha kuyenera kutsimikiziridwa pa gawo lapansi la PTFE (260 ° C) ndi wosanjikiza zomatira; Siloxane PSA yoyeretsedwa mwapadera imafunikira kuti mupewe kuipitsidwa kwa siloxane; Kutentha kwakukulu kumalepheretsa kukwawa ndi kukweza m'mphepete; ukhondo sumafuna kukhetsa kwa ulusi komanso kutsika kwa ayoni; tepi yotsutsa-static (resistivity pamwamba 10⁶-10⁹ Ω/sq) imalepheretsa kuwonongeka kwa ESD; kukana kwa plasma kuyenera kuwunikidwa panjira za sputtering/PECVD; Kutsika kwamafuta pansi pa 2% kumatsimikizira kubisala bwino.

Nkhaniyi ikufananiza kutentha kwa chipinda ndi kutentha kwapamwamba kwa zomatira za PTFE za PTFE. Kutentha kwapamwamba (120-180 ° C) kumapanga maukonde ophatikizika okhala ndi mphamvu zolumikizana mwamphamvu, kuteteza zotsalira zomatira pambuyo pakusenda. Amapanga ma anchoring bond okhala ndi magawo a PTFE kudzera pa primer co-curing, kuchotsa ziwopsezo za delamination. Kutentha kwapamwamba kumachotsanso kusungunuka kwa mamolekyu musanayambe kubereka, kuteteza kuphulika ndi kuipitsidwa kwa mafuta a silicone pakuwotcha koyamba.

Bukuli limakhudza kusankha kwa tepi yotentha kwambiri ya PTFE pakumangira jekeseni ndi ntchito zotsutsana ndi ndodo. Kusankha kotengera kutentha: ≤260 ° C kwa pulasitiki wamba (standard silicone PSA tepi, 0.13-0.18mm); 260-300 ° C kwa mapulasitiki opangira kutentha kwambiri monga PC, PA66, POM (zomatira za silicone zapamwamba, 0.18-0.25mm); 300-400 ° C ya PEEK, LCP, PPS pafupi ndi othamanga otentha (tepi yomatira imalephera; gwiritsani ntchito nsalu ya PTFE yopanda zomatira kapena filimu ya PFA). Kusankhidwa kozikidwa pazida: zida zomangira zimafunikira malo omasuka a PTFE; magalasi/mineral zodzazidwa ndi zinthu zimafuna heavy-ntchito 0.25mm+ kuvala zosagwira tepi; zowonjezera zowononga zimafuna zomatira zosagwirizana ndi mankhwala ndi gawo lapansi lowundana; ma static-sensitive application amafunikira tepi yotsutsa-static yakuda ya PTFE.

PTFE- TACHIMATA fiberglass nsalu chimagwiritsidwa ntchito pokonza mphira chifukwa kutentha kukana, sanali ndodo katundu, ndi otsika mikangano. Ntchito zazikuluzikulu zikuphatikiza: kutulutsa zingwe za mbale / vacuum vulcanization ndi kuumba matayala; malamba osamata a mphero zotseguka, makalendala, ndi mizere yozizirira; nsalu yotchinga yosungiramo mphira yomaliza; kusamalira mwapadera silicone ndi fluororubber; ndi ma tray ovunikira kuti azichiritsa pambuyo. Ubwinowu umaphatikizapo kuthetsa kumatira kwa nkhungu, kuchepetsa kugwiritsa ntchito zotulutsa, kuteteza kukulunga kwa ma roller, ndikuwonetsetsa kuti akugwetsa bwino.

Kutentha kwa magalasi (Tg) a zomatira zotengera kukakamiza kwa silikoni ndi pafupifupi -120 ° C - kutsika kwambiri kuposa zomatira za acrylic. Tg yotsika kwambiri iyi imasunga tepi yotentha kwambiri ya PTFE kukhala yosinthika komanso yomata ngakhale pa -70 ° C, kuteteza kusweka kwamphamvu ndikupangitsa kumamatira kodalirika muzogwiritsa ntchito cryogenic.

Kusankhidwa kwa pepala lotulutsa kapena gawo laling'ono la filimu ndi wothandizira kumasula kumakhudza mwachindunji kukhazikika kwa kusungirako ndi kupukuta kwa PTFE tepi yotentha kwambiri. Nkhaniyi ikufanizira magawo a mapepala a PET vs kraft ndi silicone vs.