PTFE high-temperature fabric (PTFE-coated fiberglass) yikahle swinene eka microwave heating hikuva yi hundzisela ti microwaves handle ko tswonga eneji, yi lwisana na 260°C, naswona yina xivumbeko lexi nga namarheliki. Switirhisiwa swikatsa ti microwave baking mats, ti industrial dryer conveyor belts, ti reactor linings to gayela ti khemikhali, na ti microwave popcorn bag liners. Tigredi ta FDA leti kumekaka eka ku hlangana na swakudya.

Lapi ra mahiselo yale henhla ya PTFE (PTFE-coated fiberglass) rina ku tiya ka flex lokunga kahle hikuva substrate ya fiberglass hi ntumbuluko yi brittle. Malapi yo olova (0.08mm) ya hanya eka madzana kuya eka magidi ya ku peta; ti grade to tika (>0.25mm) ti pandzeka endzhaku ka makume. Satin weave yi tlula plain weave. Eka ku gombonyoka loku yaka emahlweni ka reciprocating, languta filimi ya PTFE leyi tiyeke kumbe lapi leri sekeriweke eka aramid ematshan’wini ya sweswo.

Thepi ya mahiselo yale henhla ya PTFE yi tirhela indasitiri ya PV eka mintirho yimbirhi yohambana: process consumable (yi sivela ku namarhela ka EVA overflow eka ti laminators, solder mask) na insulation ya vutomi byo leha (busbar wrap, junction box fixation). Ku tirhisiwa endzeni ka nkarhi hinkwawo, tithepi tifanele ku hundza IEC 61215: 1000-2000h damp heat, UV, thermal cycling (-40°C kuya eka +85°C), na silicone PSA na shrinkage <1%.

Lapi ra mahiselo yale henhla ya PTFE (PTFE-coated fiberglass) ritirhisiwa ngopfu eka ku kandziyisa ka swiambalo na ku daya eka mabandhi yo gandlisa yo hundzisela ku hisa (180-230°C), swifunengeto swa tafula ro gandlisa hi xikirini, mabandhi ya mesh yo omisa, mabandhi ya muchini wo fusa, na ku phutsela hi roller. Vuandlalo bya yona lebyi nga namarheli byi sivela masalela ya inki/adhesive, leswi hungutaka nkarhi wo basisa na ku antswisa khwalithi ya malapi. Mabandhi lama nga heriki lama nga riki na swirhabyani ma endla leswaku ku va ni vuhumelerisi lebyi yaka emahlweni.

Thepi ya mahiselo yale henhla ya PTFE leyi cheriweke eka mabanga yo hisa na swiphemu swo pfalela yi tisa mimpimo ya mune ya nkoka: yi sivela ku namarhela ka plastiki leyi n’okiweke (yi herisa nkarhi wo yima), yi sirhelela ti dies to pfalela to durha, yi homogenizes ku hisa/ntshikelelo eka swisirhelelo leswi nga cincekiki, naswona yi hunguta ku hlangana ka filimi. Thepi leyi seketeriweke hi fiberglass (0.13-0.25 mm) leyingana silicone PSA (≥260°C) ya hlohleteriwa. Thepi ya ntima ya anti-static ya milayeni ya rivilo lerikulu.

Lapi ra mahiselo yale henhla ya PTFE (PTFE-coated fiberglass) i xitirhisiwa xo sefa xa xiyimo xale henhla eka swiyimo swo tika: ku susiwa ka ntshuri wa gasi ya flue (semende, ku hisiwa ka thyaka, ti boilers ta malahla kuya fika eka 260°C), ku sefiwa ka mati lawa ya onhaka (acids, alkalis, oils), ku sefa ka swakudya/pharmaceutical sterile, na ti filters ta HEPA cleanroom. Xiphemu lexi nga namarheliki xi sivela ku caking ka ntshuri naswona swipfumelela ku basisiwa hiku olova. Ti membrane-laminated grades ti fikelela ku humesiwa ka swilo swale hansi swinene.

Lapi ra mahiselo yale henhla ra PTFE ri hlayisa ku pfaleriwa ka kahle swinene ka gezi 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.

Nhundzu ya water vapor barrier ya PTFE adhesive tape yikumiwa ngopfu hi swihoxo swa coating (micropores, microcracks, fibre wicking) kutlula PTFE’s intrinsic hydrophobicity. Pure PTFE film yi nyika ntsena WVTR ya le xikarhi. Multi-layer coating na lamellar fillers (mica, glass flakes) swiendla leswaku kuva na labyrinth effect, leswi hungutaka swinene ku hundziseriwa ka vapor. Eka ku pfariwa ka ndzhongho wale henhla, boxa swifunengeto leswi tsindziyeleke.

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), ti conveyors ta swakudya leswi oxiweke, tilayini to kufumeta swilondza, ti tunnel leti titimelaka, ti heat sealers, na roller wrapping. Swi hunguta ku tlanga hi nkarhi na nkarhi wo basisa.

Ku tiya ka creep ka PTFE high-temperature adhesive tape ehansi ka ndzhwalo wa nkarhi woleha lowu nga cinciki (ngopfu ngopfu eka 200-260°C) swikumiwa hi swilo swimbirhi: silicone PSA crosslink density (crosslinking yale henhla yi sivela ku khuluka) na muxaka wa substrate (fiberglass-reinforced PTFE yi lwisana na cold creep; pure PTFE film creeps). Xinamarheti lexi nga crosslinked xi tsandzeka hi ku hatlisa loko ku hisa ngopfu. Ti layers to namarhela leti tiyeke ti engetela khombo ra creep.