Tepi ya PTFE yotentha kwambiri imakhala ndi kukana kutsitsi kwa mchere, koma mfundo zofooka ndi zomatira ndi m'mphepete mwa fiberglass gawo lapansi. Njira zowunikira: Kuyesa kwa 1000h osalowererapo mchere wa mchere (NSS), kuyeza kusungidwa kwa peel mphamvu (≥80% yofunika), zolakwika zowoneka (kukweza, kuphulika), ndi dzimbiri lachitsulo. Pamalo am'madzi komanso okhala ndi chifunga chamchere wambiri: gwiritsani ntchito silicone PSA (osati acrylic), gawo lapansi la PTFE lokhazikika, sindikizani m'mphepete ndi chosindikizira cholimbana ndi nyengo, ndikuyika zoyambira pazitsulo.

Zomatira za silicone zotengera kupanikizika (PSA) za PTFE matepi otentha kwambiri zimasiyana mosiyanasiyana pakukalamba kwambiri. Methylphenyl silicone PSA imasungabe> 85% mphamvu ya peel pambuyo pa 250 ° C/7 masiku, pomwe mtundu wa methyl umatsikira mpaka 50-70%. Machitidwe owonjezera (hydrosilylation) amapereka kukhazikika kwabwinoko kuposa kuchiritsidwa ndi peroxide. Pantchito yopitilira 200°C+, sankhani magiredi apamwamba aphenyl owonjezera.

Thermally conductive PTFE pressure-sensitive adhesive adhesive (PSA) matepi ayenera kuchititsa kutentha pamene akumamatira. Kuwonjezera ma fillers kumapangitsa kuti matenthedwe azitha koma kumapweteka kumamatira. Mulingo woyenera kwambiri umagwiritsa ntchito tinthu tating'ono tozungulira (monga ma skeleton oyendetsa) osakanikirana ndi tinthu tating'onoting'ono (kudzaza ma voids), kusungitsa zodzaza zonse pamwamba pa chigawo cha percolation. Pewani flakes ndi ulusi; amapha zingwe.

Tepi ya PTFE yotentha kwambiri imathandizira makampani a PV m'maudindo awiri osiyana: njira zogwiritsira ntchito (zimaletsa kumatira kwa EVA kusefukira pa laminator, chigoba cha solder) ndi kusungunula kwa moyo wautali (kukulunga kwa mabasi, kukonza bokosi lolumikizana). Kuti mugwiritse ntchito kosatha mkati, matepi ayenera kudutsa IEC 61215: 1000-2000h kutentha kwachinyezi, UV, njinga yamoto yotentha (-40 ° C mpaka + 85 ° C), ndi silikoni PSA ndi shrinkage <1%.

Tepi ya PTFE yotentha kwambiri yomwe imagwiritsidwa ntchito pamipeni yosindikiza kutentha ndi zomangira zosindikizira zimapereka mfundo zinayi zazikuluzikulu: zimateteza kumamatira kwa pulasitiki yosungunuka (kuchotsa nthawi yopuma), kumateteza kusindikiza kokwera mtengo, kumapangitsa kutentha / kupanikizika kwa zisindikizo zosasinthasintha, ndi kuchepetsa kukangana kwa filimu. Fiberglass-backed tepi (0.13-0.25 mm) yokhala ndi silicone PSA (≥260 ° C) ikulimbikitsidwa. Anti-static wakuda tepi ya mizere yothamanga kwambiri.

The madzi nthunzi chotchinga katundu wa PTFE zomatira tepi anatsimikiza makamaka ndi ❖ kuyanika zolakwika (micropores, microcracks, CHIKWANGWANI wicking) osati PTFE a intrinsic hydrophobicity. Filimu yoyera ya PTFE imapereka WVTR yapakatikati yokha. Mipikisano wosanjikiza zokutira ndi lamellar fillers (mica, magalasi flakes) amapanga labyrinth zotsatira, kuchepetsa kwambiri kufala kwa nthunzi. Kuti musindikize chinyezi chambiri, tchulani zokutira zolimba.

Kulimbana ndi kukana kwa tepi yomatira ya PTFE yotentha kwambiri pansi pa katundu wanthawi yayitali (makamaka pa 200-260 ° C) kumatsimikiziridwa ndi zinthu ziwiri: silicone PSA crosslink density (high crosslinking imalepheretsa kutuluka) ndi mtundu wa gawo lapansi (fiberglass-reinforced PTFE imatsutsa kuzizira kozizira; filimu yoyera ya PTFE imakwawa). Zomatira zosagwirizana zimalephera mwachangu pakutentha kwakukulu. Zomata zokhuthala zimawonjezera chiopsezo chokwera.

Kwa PTFE matepi otentha kwambiri pansi pa kumizidwa kwa nthawi yaitali, gawo lapansi la PTFE limakhalabe ndi mankhwala, koma zomatira ndizofooka. Madzi amafooketsa silikoni PSA; madzi amchere amathandizira kuti dzimbiri. Pa mankhwala aukali, zomatira za fluorosilicone kapena perfluoropolyether - kapena tepi ya PTFE yopanda zomatira - ndiyofunika. Kutaya mphamvu kwa peel mpaka 40% pambuyo pa maola 48 m'madzi.

Tepi ya PTFE yotentha kwambiri imafuna kusungidwa koyenera kuti ikhale yomatira, kusinthasintha, ndi kutulutsa ntchito. Zofunikira zazikulu ndi kuwongolera kutentha (10-30 ° C), chinyezi chochepera 60%, kupewa kuwala, kudzipatula kwamankhwala, kuyika molunjika, ndi mpweya wabwino. Tsatirani kasamalidwe ka FIFO ndikuwunika pafupipafupi.

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.