PTFE substrate hi ntumbuluko yikota ku fafazela munyu (ku amukeriwa ka mati <0.01%). Hambiswiritano, matirhelo hinkwawo ya thepi yaya hi muxaka wa adhesive: silicone PSA yikota ku tiyisela tindzhawu tale lwandle (500-1000h salt spray tests,>80% peel retention); acrylic PSA yi tsandzeka. Ku khomiwa kahle ka le henhla, ku cheriwa lokunga riki na bubble, na ku pfariwa ka makumu hi silicone sealant i swa nkoka swinene eka ku tshembheka ka nkarhi woleha eka tipulatifomo ta le lwandle na swikepe.

Thepi ya fiberglass ya PTFE yi lava switifikheti swinharhu swa nkoka swa vuhlayiseki: UL (vuhlayiseki bya gezi na malangavi), FDA (ku landzelela ku khumbana ka swakudya), na ISO 9001:2015 (vulawuri bya khwalithi). Tithepi leti tiyisisiweke ti nyika matirhelo lama nga cincekiki, vutomi byo leha bya ntirho, na ntsengo wa le hansi wa ntsengo hinkwawo wa vun’wini hambi leswi ku nga na ntsengo wa le henhla wa le mahlweni. Minkarhi hinkwayo tiyisisa switifikheti hi ku kongoma na mihlangano leyi humesaka.

Thepi ya mahiselo yale henhla ya PTFE yitirhisiwa eka swiyenge swinharhu swa matirhiselo ya swa vutshunguri: nsirhelelo wa switirhisiwa swo sterilization (titreyi ta autoclave, ku pakiwa ka heat-seal), vutshunguri bya le henhla ka switirhisiwa (ku peta ka low-friction, ku pfaleriwa ka gezi), na switirhisiwa leswi nga nghenisiwa (vascular grafts, sutures). Biocompatibility yi tiyisisiwa hiku tirhisa ISO 10993, naswona FDA 21 CFR 177.1550 yi simeka vuhlayiseki bya masungulo bya switirhisiwa.

Thepi ya mahiselo yale henhla ya PTFE yina ku tiya lokunga kahle eka miseve ya ionizing. Eka 1 kGy ntsena ya gamma exposure, matimba ya tensile ya hunguteka kuya eka ~25% ya original. Yi lulamerile ntsena eka tindzhawu ta mpimo wale hansi (swakudya/ku sterilization ka swa vutshunguri <10 kGy). Eka bindzu ra nyutliya kumbe swihaha-mpfhuka swa le xibakabakeni, tirhisa polyimide kumbe PEEK ematshan’weni ya sweswo.

Eka ti tapes ta PTFE ta mahiselo yale henhla ehansi ka ku nyuperisiwa ka nkarhi woleha, substrate ya PTFE yitshama yirikarhi yinga tirhi hi ti khemikhali, kambe leyara yo namarhela i ndzhawu yo tsana. Mati ya tsanisa silicone PSA; mati ya munyu ya hatlisisa ku bola. Eka tikhemikhali leti nga ni matimba, swinamarheti swa fluorosilicone kumbe perfluoropolyether – kumbe thepi ya PTFE leyi nga riki na swinamarheti – swa laveka. Ku lahlekeriwa hi matimba ya peel kuya fika eka 40% endzhaku ka 48 wa tiawara ematini.

Thepi ya PTFE ya mahiselo yale henhla leyi tirhisiwaka eka switirhisiwa swa ku khumbana ka swakudya yifanele ku tshama eka swipimelo swa mahiselo leswi hlamuseriweke: ≤260°C eka kutirhisiwa loku yaka emahlweni, ≤300°C eka tinhlohlorhi to koma (timinete), naswona ayi tshuki yiva ehenhla ka 327°C (ku bola). Milawu ya FDA na EU a yi boxi nkarhi wa misava hinkwayo – nkarhi wa ku hlangana loku hlayisekeke wu titshege hi mahiselo naswona wu fanele ku tiyisisiwa hi swikambelo swa ku rhurha leswi tekelelaka swiyimo swa xiviri.

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.

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 tshoveka 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.

Tanihi muendli wa xiphurofexinali wa malapi ya mahiselo ya le henhla ya PTFE, Jiangsu Aokai New Materials yi avelana vutivi lebyi faneleke bya indasitiri na wena. Ku soholotiwa ka makumu na ku wa ka tithepi ta mahiselo yale henhla ya PTFE aswi tali ku vangiwa hi xivangelo xin’we, kambe swivangiwa hi mbuyelo lowu hlanganeke wa ku hlawuriwa ka tithepi lokunga fanelangiki, .