PTFE tepi reusability zimadalira zinthu zinayi: zomatira chiphunzitso (mkulu crosslink kachulukidwe, otsika silikoni migration, microphase kapangidwe kwa repositionable tack), gawo lapansi anangula (pamwamba kutsegula + zoyambira kuteteza kutengerapo zomatira kutengerapo), ❖ kuyanika kumbuyo (kumasula wosanjikiza kuteteza zomatira pa unwinding), ndi kagwiridwe koyenera (zoyera zomatira pamwamba, zomatira zolondola pamwamba, kupewa zomatira pamwamba). Zomatira zotsuka ndi madzi zimatha kuchira> 90% tack pambuyo poyeretsa.

Fiberglass nsalu matenthedwe shrinkage ndiye chifukwa chachikulu cha PTFE tepi dimensional kusakhazikika. Pa kutentha kwa PTFE sintering (360-400 ° C), kupsinjika kotsalira koluka kumatulutsidwa. Ngati sichiletsa, nsalu imachepa; Ngati atalephereka, kupsinjika kobisika kumatsekeredwa, kumapangitsa kuchepa pang'onopang'ono pakuchiritsa zomatira (150-200 ° C) ndikutentha komaliza. Yankho: gwiritsani ntchito magalasi a fiberglass asanayambe kutentha ndi <0.5% shrinkage pa 400 ° C, kuchotsa kupsinjika kotsalira musanayambe kupaka.

Tepi ya PTFE yotalikirana ndi kutentha imafunikira silikoni PSA yomwe imasunga kumamatira kuchokera -70°C mpaka 260°C. Zinthu zazikuluzikulu zamapangidwe: kusanjikiza koyambira koyambira (kuteteza kutsetsereka), kusanjikizana kwa chilumba cha m'nyanja (MQ resin Islands + polysiloxane continuous phase), gradient crosslinking (wosanjikiza kwambiri wamkati wokana kukwawa, wosanjikiza wakunja wosanjikizana wocheperako), ndi zodzaza ndi kutentha kwa oxidation (cerium resistance). Magawo a Phenyl-modified siloxane amapondereza kutentha kwa crystallization, zomwe zimathandiza kusinthasintha pansipa -100 ° C.

Chodulidwa kumapeto kwa nkhope ya PTFE tepi yotentha kwambiri imakhudza kwambiri zomatira ndikukweza m'mphepete panthawi yogwiritsira ntchito. Kung'ambika kosawoneka bwino (masamba osawoneka bwino, ngodya zosayenera) kumapanga ulusi wa guluu, kufewetsa zomatira m'mphepete, ndikuwonetsa magalasi a fiberglass - zomwe zimatsogolera kutulutsa, kulumikizana kofooka, ndikutukuka pakutentha kapena kupsinjika. Nkhope zosawoneka bwino (zopindikira, zotuluka) zimayambitsa kugawanikana kosagwirizana, kuyendetsa zomatira kukwawa panthawi yosungira. Nkhope yabwino yomalizira imakhala yosalala, yotsekemera, komanso yopanda kuwonongeka - imagwira ntchito ngati chisindikizo chomwe chimatseka zomatira ndikuonetsetsa kuti pali mgwirizano wonse.

Pa PTFE tepi ❖ kuyanika, zosungunulira volatilization mlingo wa silikoni kuthamanga tcheru zomatira ndi yofunika ndondomeko chizindikiro. Kuthamanga kwambiri → kusenda pamwamba, kusayenda bwino, zibowo (zosungunulira zotsekeredwa), ndi ma craters (kuundana kapena kupangitsidwa ndi zoyipa). Kuchedwetsa kwambiri → kugwa, m'mbali zokhuthala, ndikunyowetsa pa PTFE yamphamvu yotsika. Njira yoyenera: kusinthasintha koyambirira kwapang'onopang'ono pakuwongolera ndi kuthawa kwa thovu, kenako kufulumizitsa kuyanika kuti mupange mawonekedwe. Gwiritsani ntchito zosungunulira zosakanizika (toluene/xylene + kuyanika mwachangu) ndi kutentha kwa uvuni wa gradient (otsika → sing’anga →pamwamba).

Tepi ya PTFE yotentha kwambiri imataya kumamatira pambuyo pogwiritsidwa ntchito mobwerezabwereza chifukwa cha kuipitsidwa kwa pamwamba (fumbi, mafuta a silicone), kulephera kwa zomatira (zotsalira), kapena kugwirizanitsa kofooka kwa gawo lapansi. Mayankho: silicone ya high-crosslink PSA (kutsika pang'ono, kugwedeza bwino / kugwira mphamvu), chithandizo choyambirira pa gawo lapansi la PTFE, magalasi a fiberglass wandiweyani, ndikugwira bwino (malo oyera, peel ozizira, 180 ° angle). Kuyesa kwachulukidwe kumatsimikizira kusintha.

Tepi ya PTFE yotentha kwambiri yosungidwa pansi pamikhalidwe yodziwika (10-25 ° C, 40-70% RH, kutali ndi UV / kupanikizika kwakukulu) imakhala ndi moyo wa alumali wa miyezi 3-6 (makalasi apamwamba mpaka miyezi 12). Zofunika zowonongeka: mphamvu ya peel siyenera kutsika pansi pa 70% ya mtengo woyamba; palibe zotsalira zomatira pambuyo pochotsa kutentha kwakukulu; palibe carbonization kapena akulimbana pa kutentha oveteredwa. Kufufuza mwachangu: kumasuka kwapamanja, kuyesa kotsalira kwa 260 ° C, ndi kuyesa kwa lamination shrinkage.

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.

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.

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.