Mahiselo ya glass transition (Tg) ya silicone pressure-sensitive adhesive ya kwalomu ka -120°C – yale hansi swinene kutlula ti acrylic adhesives. Tg leyi yale hansi swinene yi hlayisa PTFE high-temperature tape yi olova naswona yi namarhela hambi kuri eka -70°C, leswi sivelaka ku pandzeka ka brittle xikan’we naku endla leswaku kuva na ku namarhela loku tshembekaka eka switirhisiwa swa cryogenic.

Thepi ya mahiselo yale henhla ya PTFE yinga pandzeka kumbe ku tshoveka ehansi ka swiyimo swo phindha-phindha swo gombonyoka na ku pfula. Xihloko lexi xi hlamusela ndlela yo sivela leswi hiku hlawula kahle substrate (glass fibre reinforced), ku enta lokunene (0.18mm tani hi standard), ku hlawula silicone adhesive, na tindlela letinene to veka.

Lapi ra mahiselo yale henhla ra PTFE rinyika ku tiya ka ti khemikhali loku hlawulekeke, ku tiyisela ti acids to tiya, alkalis, ti organic solvents, na tigasi leti onhaka. Xihloko lexi xi hlamusela hi vuxokoxoko swilo swa yona leswi tiyeke, swipimelo (tinsimbi ta alkali leti n’okiweke, swiaki leswi tiyeke swa fluorinating), ni swilo swa nkoka swo tanihi mahiselo, ku hlangana ni ntshikilelo wa michini.

Ku hlawuriwa ka phepha ro humesa kumbe substrate ya filimi na xitirhisiwa xo humesa swi khumba hi ku kongoma ku tshamiseka ka vuhlayiselo na matirhelo ya ku rhurhumela ka thepi ya mahiselo ya le henhla ya PTFE. Xihloko lexi xi pimanisa PET vs. kraft paper substrates na silicone vs. fluorinated release agents, leswi ringanyetaka nhlanganelo lowunene wa zero-residue peeling xikan’we naku tshembheka ka nkarhi woleha.

Tithepi ta PTFE ta mahiselo yale henhla ti tirhisiwa ngopfu eka ku pfalela gezi, kambe swiyimo swa frequency yale henhla na voltage yale henhla switisa makhombo yo hlawuleka: ku onhaka ka gezi, ku humesiwa ka xiphemu, ku dyuhala ka mahiselo, ku lahlekeriwa hi signal ya frequency yale henhla, na ku twisisa mbango. Xihloko lexi xi hlamusela khombo rin’wana ni rin’wana ni ndlela yo ri papalata.

Ku cheriwa ka PTFE aswi pimiwi eka lapi ra fiberglass ntsena. Atikili leyi yi tivisa 7 wa ti substrates tin’wana – aramid, carbon fibre, PBI, porous metal, graphite, asbestos (phased out), na ti ceramic fillers – na swihlawulekisi swa tona swa maendlelo, swipfuno, swipimelo, na matirhiselo ya nkoka.

Lapi ra PTFE leri hefemulaka swinene ra mahiselo yale henhla ri hlanganisa swivumbeko leswinga namarheli, ku tiya ka mahiselo, na ku nghenelela ka moya. Xihloko lexi xi lavisisa matirhiselo ya xona ya nkoka eka ku omisa swiambalo, ku lulamisa swakudya, ku endla swilo leswi hlanganisiweke, swa elektroniki, ku hundzisela hi moya, nsirhelelo wa mbango, na switirhisiwa swo aka.

Xihloko lexi xi hlamusela ndlela yo sivela ku thyakisa na ku onhaka ka matirhelo eka tlhelo leri nga namarheliki ra thepi ya mahiselo ya le henhla ya PTFE hi nkarhi wa endlelo ro peta. Maendlelo ya nkoka ya katsa vulawuri bya xihlovo (ku tshungula ka le henhla loku kongomeke), ku hambanisiwa hi nyama (tifilimi to sirhelela, ti non-stick rollers, zoned drying), na vulawuri bya maendlelo lawa ya antswisiweke.

Xihloko lexi xi hlamusela leswaku hikokwalaho ka yini lapi ra fiberglass leri nga riki na alkali ri ri substrate leyi tsakeriwaka eka lapi ra PTFE ra mahiselo yale henhla. Yi katsa ku hlanganisiwa ka tikhemikhali hiku tirhisa ti silane coupling agents xikan’we na swivumbeko swa nkoka swa physical swofana na thermal stability, dimensional stability, na corrosion resistance – ku tiyisisa matirhelo yo leha eka tindzhawu to tika.

Ku chela thepi ya mahiselo yale henhla ya PTFE hiku tiya eka swiphemu leswi govekeke na leswinga tshamisekangiki handle ka swiphemuphemu na ku soholotiwa ka makumu, endlelo ra matirhelo leri ringaniseriweke i ra nkoka, kukatsa na vutshunguri bya substrate lebyi heleleke, vuswikoti byo chela bya xiphurofexinali na magoza ya kahle yo pfuneta. Exikarhi ka swona, substrate pretreatment i goza ra nkoka swinene, leri vekaka kwalomu ka 70% wa mbuyelo wohetelela wo namarhela.