Tepi yopukutidwa ya PTFE imatha kupanga zomatira zolumikizira (kutsekereza) ndi kusamutsa zomatira panthawi yosungirako nthawi yayitali. Zomwe zimayambitsa: PTFE filimu zotanuka kukumbukira ndi silikoni PSA amakwawa pansi pa kupsyinjika / kutentha. Katetezedwe: Kumangika kwa gradient (zolimba zakunja, kumasuka mkati) panthawi yopanga, kuphatikiza kutulutsa zokutira kumbali yosamatira. Sungani pa -15 ° C mpaka 40 ° C, 30-70% RH, yopingasa pazitsulo, tembenuzani mpukutu uliwonse. Kuti muwonjezere zomatira, onjezerani mapepala otulutsa pakati pa zigawo.

Nsalu yotentha kwambiri ya PTFE imapereka zabwino zisanu ndi chimodzi monga lamba wosindikizira wosindikizira: osagwira ndodo (mpaka wosindikizira ndi inki kumasulidwa mwaukhondo), 260°C kutentha kukana (kuyanika bwino), kukhazikika kwa dimensional (<0.5% elongation, kulembetsa kolondola), inertness yamankhwala (imakana phala la dzimbiri), kugunda kwamtundu, kutsika kwamtundu, kutsika kwamphamvu, kutsika kwamphamvu, kutsika kwamphamvu, kutsika kwamphamvu, kutsika kwamphamvu, kutsika kwamphamvu, kutsika kwamphamvu, kutsika kwamphamvu, kutsika kwamphamvu (kutentha kwapakati), antistatic). Zoyenera kusindikiza pazenera, kusindikiza kwa digito, ndi ntchito zosinthira kutentha.

Anti-static PTFE mkulu-kutentha nsalu Chili chosagwira ndodo, kutentha zosagwira (260°C), ndi katundu inert mankhwala muyezo PTFE ndi malo amodzi-dissipative ntchito. Ntchito zazikulu: kupanga zamagetsi (PCB lamination, component handling), PV module lamination (amateteza ESD kuwonongeka kwa maselo a dzuwa), kukonza chakudya ndi mankhwala (ESD-safe baking liners), zomera za mankhwala (anti-corrosion, anti-static ducting), ndi mafakitale a nsalu / kusindikiza. Kukaniza pamwamba nthawi zambiri 10⁶–10⁹ Ω.

PTFE matepi kutentha kwambiri osungidwa mu mpukutu mawonekedwe akhoza kuvutika ndi interlayer adhesion (kutsekereza) ndi zomatira kusamutsidwa ku non-ndodo mbali. Zomwe zimayambitsa: PTFE filimu zotanuka kukumbukira ndi silikoni PSA zikwawa pansi pa mavuto ndi kutentha. Yankho: Kumangika kwa gradient - zolimba pazigawo zakunja, zomasuka m'kati mwake - pogwiritsa ntchito kuwongolera kotseka. Kuthandizira ndi zokutira zotulutsa, kusungirako koyenera (15-40°C, 30-70% RH), kuyika kopingasa, ndi kuzungulira kotala.

Moyo wa ntchito ya nsalu ya PTFE yotentha kwambiri umasiyana kwambiri ndi kagwiritsidwe ntchito. Mankhwala odana ndi dzimbiri amatha kukhala zaka 3+ (4x motalika kuposa mphira). Ma tray ophikira chakudya miyezi yapitayi ndi kuwonongeka pang'ono. Malamba otengera mafakitale amavala kuchokera ku kukangana. PV lamination (150 ° C, EVA contact) ali ndi moyo wapakati. Ntchito zolimbana kwambiri (ma abrasive disc) amakhala ndi moyo waufupi. Mfundo zazikuluzikulu: kuwongolera kutentha (kukhala ≤260 ° C), pewani mikwingwirima yakuthwa, kuyeretsa nthawi zonse, ndikusintha munthawi yake mukakhala matuza kapena achikasu.

Tepi ya PTFE yotentha kwambiri yomwe imagwiritsidwa ntchito pokhudzana ndi chakudya iyenera kulemekeza malire a kutentha: ≤260 ° C kuti agwiritsidwe ntchito mosalekeza (palibe malire a nthawi), 260-300 ° C kwa mphindi 30 zokha, ndipo > 300 ° C ndizoletsedwa. Tepiyo ndi yongolumikizana mosalunjika kokha (ma tray liner, zotchingira kutentha), osati kukulunga chakudya mwachindunji. Osagwira ntchito popanda kuchuluka kwa chakudya (kutentha kowuma). Bwezerani ngati matuza, achikasu, kapena ovala.

Nsalu ya PTFE yotentha kwambiri (PTFE-yokutidwa ndi fiberglass) imakhala yayitali kwambiri ikasungidwa pansi pa 260 ° C, kutali ndi zopinga zakuthwa, ndikutsukidwa ndi zida zofewa. Zinthu zazikulu zomwe zimalepheretsa moyo: kuwonongeka kwamafuta opitilira 260 ° C, kugwedezeka kwa kutentha chifukwa cha kutentha / kuzizira kofulumira, kutopa kwamakina chifukwa chopindika ndi kukangana, kuukira kwamankhwala kuchokera kuzitsulo zosungunula za alkali kapena zotsekemera zolimba, kuwonongeka kwa zitsulo pakutsuka, komanso kuwonekera kwa UV kuti mugwiritse ntchito panja. Ubwino wa zokutira ndi gawo lapansi ndizofunikanso.

Nsalu ya PTFE yotentha kwambiri imakhala yokhazikika mpaka 300 ° C, koma pamoto imawola ndikutulutsa mpweya wapoizoni kwambiri: hydrogen fluoride (HF) (corrosive, pulmonary edema) ndi perfluoroisobutylene (PFIB) (yopanda mtundu, yopanda fungo, ~ 10x poizoni kwambiri kuposa phosgene, antido). Komanso carbon monoxide, zotsalira za PFOA, ndi kufufuza ma dioxin. Masks wamba wamba sagwira ntchito; gwiritsani ntchito zida zopumira zokha (SCBA). Zizindikiro zitha kuchedwa.

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.