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 bwino), 260°C kutentha kukana (kuyanika bwino), kukhazikika kwa dimensional (<0.5% elongation, kulembetsa kolondola), inertness yamankhwala (imakana phala la corrosive), kugunda kwamtundu, kutsika kwamtundu, kutsika kwamtundu, 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 high-temperature nsalu imaphatikiza zosagwira ndodo, zosagwira kutentha (260 ° C), ndi katundu wa inert wa PTFE wokhazikika ndi static-dissipative performance. 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 yotalika kwambiri ikasungidwa pansi pa 260°C, kutali ndi mikwingwirima yakuthwa, ndikutsukidwa ndi zida zofewa. Zinthu zazikulu zomwe zimalepheretsa moyo: kuwonongeka kwa kutentha pamwamba pa 260 ° C, kugwedezeka kwa kutentha chifukwa cha kutentha / kuzizira mofulumira, kutopa kwa makina chifukwa chopindika ndi kukangana, kugwidwa ndi mankhwala kuchokera ku zitsulo zosungunuka za alkali kapena oxidizer amphamvu, kuwonongeka kwa zitsulo zopangira zitsulo poyeretsa, ndi kukhudzana ndi UV pogwiritsira ntchito kunja. Ubwino wa zokutira ndi gawo lapansi ndizofunikanso.

Nsalu yotentha kwambiri ya PTFE 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, PFOA zotsalira, 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.