Lapi ra mahiselo yale henhla ra PTFE ri hlayisa ku pfaleriwa ka gezi lokunene kusuka eka -180°C kuya eka 260°C: volume resistivity >1013 Ω·cm eka 200°C, dielectric constant yitshamisekile eka 2.0-2.1. Ehenhla ka 260°C, PTFE ya olova, ya bola ehenhla ka 327°C, yi lahlekeriwa hi insulation hilaha kunga heriki. Ehansi ka 0°C, insulation ya antswisiwa kambe coating yi hundzuka brittle. Tshama endzeni ka 260°C kuva u kuma matirhelo yo tshembheka.

Lapi ra mahiselo yale henhla ya PTFE (PTFE-coated fiberglass) ri kahle swinene eka mabandhi yo fambisa swakudya hikokwalaho ka ku tiya ka rona ka 260°C eka kuhisa, -70°C ku olova ka xirhami, vuandlalo lebyi nga namarheliki, na ku landzelela FDA. Switirhisiwa swa nkoka: ti oven ta bakery (tibiscuit, xinkwa, pizza), switirhisiwa swo fambisa swakudya leswi oxiweke, tilayini to kufumeta swilondza, tithanele to titimela, swisirhelelo swo hisa, na ku phutsela hi roller. Swi hunguta ku tlanga hi nkarhi na nkarhi wo basisa.

Switirhisiwa swo hetisa ehenhla leswi cheriweke eka lapi ra fiberglass loko kungase peta PTFE swina nkoka swinene eka matirhelo yohetelela ya lapi ra mahiselo yale henhla ya PTFE. Ti organosilane coupling agents ti endla mabuloho ya molecular exikarhi ka inorganic glass fibre na organic PTFE, leswi tlakusaka matimba ya peel kusuka eka <2 N/cm kuya eka 4-8+ N/cm. Vutshunguri lebyi faneleke byi tlhela byi antswisa ku tiya ka kuhisa (260°C+), matirhelo ya dielectric, na ku tiya ka tikhemikhali. Lapi leri nga tshunguriwangiki ri yisa eka delamination, bubbling, na vutomi byo koma bya ntirho.

Warp na weft density ya lapi ra fiberglass swi boha matirhelo ya lapi ra mahiselo yale henhla ya PTFE. Density yale henhla yi engetela matimba ya tensile xikan’we naku olova ka le henhla kambe yi hunguta matimba ya tear (inverted U-curve), ku olova, na ku nghena ka coating. Density leyinene yi ringanisela ku nghena, ku tsandzeka ku handzuka, ku olova, na ku hetisa ehenhla. Density yale hansi yi fambelana na dynamic bending; density yale henhla ya non-stick na insulation.

Calendering – ku tshikelela lapi leri funengetiweke hi PTFE exikarhi ka ti mirror rollers leti hisiweke eka 360-380°C – swi cinca swinene xivumbeko xa le henhla, swivumbeko swa ku humesiwa, ku nga ngheni, na matirhelo ya michini. Yi hunguta ku khwaxa kusuka eka Ra 0.5-1.0 μm kuya eka <0.05 μm, yi pfala ti pinholes, yi antswisa ku tiya ka ku onhaka, kambe yi hunguta matimba yo handzuka xikan’we naku olova. I swa nkoka eka ti release liners na ku pfaleriwa ka gezi.

Fiberglass weave pattern – plain, twill, kumbe satin – yi khumba swinene swivumbeko swa lapi ra mahiselo yale henhla ya PTFE. Satin weave yinyika matimba yale henhla swinene ya tear (2-3x plain) xikan’we naku olova, leswinga kahle eka dynamic bending. Plain weave yinyika kutshamiseka ka kahle swinene ka dimensional xikan’we naku namarhela ka peel, leswi faneleke eka switirhisiwa swa static. Twill yi ringanisela swivumbeko hinkwaswo leswaku swi tirhisiwa hi ku angarhela.

Kufana ka ku peta ka lapi ra mahiselo yale henhla ya PTFE swikumiwa hi swilo swa mune: ku endliwa ka ku peta (sayizi ya ti particle 0.15-0.35 μm, viscosity, solid content), endlelo ro peta & sintering (ku peta ka blade ku tsakeriwa kuva kufana), khwalithi ya substrate (weave pattern, pre-treatment), na ndzhawu ya vuhumelerisi (20-25°C, <60% RH). Dip + blade combined process yi ringanisela ku nghena na ku olova ka le henhla.

Ku basisiwa loku faneleke na ku hlayisiwa swi engetela vutomi bya lapi ra mahiselo yale henhla ya PTFE. Hlantswa endzhaku ko tirhisa na endzhaku ko titimela. Tirhisa maburashi yo olova, swibasisi leswi nga riki na xihlawuhlawu kumbe byala eka swivati. U nga tshuki u tirhisa ti acid/alkali to tiya, bleach, kumbe swikhwama swa nsimbi. Ku cheriwa ka mafurha ya silicone nkarhi na nkarhi swi hunguta ku onhaka. Landzelela swiletelo leswi ku sivela ku onhaka ka coating.

PTFE lapi ra mahiselo yale henhla na lapi ra silicone hivumbirhi bya swona switirhisa lapi ra fiberglass tani hi xisekelo kambe swihambana hi switirhisiwa swo peta (PTFE resin vs silicone rubber). PTFE yi humelela swinene eka ku nga namarheli, ku lwisana na ku onhaka, na ku lwisana na tikhemikhali ku fika eka 260°C. Lapi ra silicone rinyika ku olova lokukulu, ku pfaleriwa ka gezi, na ku tiya ka ndzilo (kufika eka 230°C). Hlawula hi ku ya hi leswi u swi rhangisaka emahlweni.

PTFE lapi ra mahiselo yale henhla (PTFE membrane material) i xihlawuhlawu xa premium eka tensile architecture. Swipfuno swa nkoka: vutomi byale handle bya malembe ya 30+, ndzhawu yo ti basisa (mati ya mpfula ya hlantswa thyaka), ku hundziseriwa ka ku vonakala ko olova (6-13%), Class A fire rating, na matimba yofana na nsimbi ehansi ka 1.5 kg/m2. Yi tirhisiwa eswitediyamu, eswihambukelweni swa swihaha-mpfhuka ni le miakweni leyi nga ni swifaniso emisaveni hinkwayo.