PTFE zowotchera nsalu zotentha kwambiri za PTFE zimapereka maubwino anayi ofunikira: kusagwira ntchito (palibe mafuta kapena ufa wofunikira, makeke osakhwima amamasulidwa bwino), kutentha kwakukulu (-70 ° C mpaka 260 ° C, otetezeka ku uvuni mpaka mufiriji), kugwiritsiridwanso ntchito (zikwizikwi, zosavuta kuyeretsa), komanso ngakhale kuwongolera kutentha (kuletsa kuyaka, bulauni moyenera). Mogwirizana ndi chakudya cha FDA, amatulutsa zikopa ndi kupitilira mateti a silikoni okhala ndi kutentha kwabwinoko komanso mawonekedwe owoneka bwino.

PTFE mkulu-kutentha nsalu n'kofunika mu zovala interlining makampani. Ntchito zazikulu: malamba osatha osatha amakina ophatikizana mosalekeza (amateteza zomatira zotentha zosungunuka, zomata zopanda makwinya), chivundikiro chosagwira ndodo ndi nsalu zomangira zosindikizira kutentha (amateteza ma platens kuti asaipitsidwe ndi zomatira), malamba otumizira madontho a madontho / zomatira zomatira kuyanika / sintering), ndi zovundikira nsapato zachitsulo zokanikizira zitsanzo. Kukhuthala kumachokera ku 0.13mm (padding yopepuka) mpaka 0.55mm (malamba onyamula katundu wolemera).

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.

Nsalu yotentha kwambiri ya PTFE (PTFE-yokutidwa ndi fiberglass) imapereka kukana kwamankhwala kwapadera, kupirira ma acid (kuphatikiza aqua regia), alkali amphamvu (kutentha kwachipinda), zosungunulira organic, ndi ma oxidizing agents. Kupatulapo: zitsulo zosungunuka za alkali ndi ma halogen otenthetsera kwambiri amaukira PTFE. Kuwonongeka kwa zokutira kumawonetsa magalasi a fiberglass ku hydrofluoric acid ndi ma alkali otentha kwambiri. Kutentha pamwamba pa 260 ° C kumachepetsa kukana. Pazinthu zambiri zama mankhwala, nsalu ya PTFE imakhalabe yokhazikika komanso yodalirika.

Aokai PTFE adawonetsa mndandanda wake wonse wazinthu ku APFE Shanghai 2026 (Booth 6T602, Hall 6). Zogulitsa zomwe zili ndi fiberglass zolimbitsa thupi za PTFE, makanema oyera a PTFE, magiredi odana ndi malo amodzi, ndi malamba onyamula kutentha kwambiri - zophimba kukonza chakudya, PV lamination, mabatire a lithiamu, zamagetsi, ndi ma CD. Chiwonetserochi chikudutsa pa June 26. Zogulitsa zonse zimathandizira ndondomeko yachizolowezi.

Nsalu zotentha kwambiri za PTFE zimakhala ndi magalasi apamwamba kwambiri a fiberglass ndi PTFE zokutira. Ntchito zazikuluzikulu zotumizira mafakitale (kuphika chakudya, kuyanika nsalu, zoyendera za PCB), chitetezo chowotcherera (zophimba zotchingira kutentha, zishango za spatter), kugwetsa ndi kupanga atolankhani otentha (kuumba mphira, PV lamination), kutchinjiriza magetsi (motor slot liners, zokutira zingwe), zomanga (madenga abwalo, 30 + corrosion yazaka), mlengalenga (mabulangete otentha), ndi ntchito zapadera (kudula laser, kusindikiza kwa 3D).

Kuyanika ndi gawo lofunika kwambiri pakupanga nsalu za PTFE zotentha kwambiri. Zowonongeka zodziwika bwino ndi izi: kung'amba (kuyanika mwachangu, kupukuta khungu), kusuntha (tinthu tating'onoting'ono tating'onoting'ono), mapini / matuza (mpweya wotsekeka kapena nthunzi), mawanga oyera ndi choko (kusuntha kwa surfactant kapena kusakanizika kosakwanira), chikasu / kuphika (kutenthedwa kwa zowonjezera), delamination (kutsika kwapang'onopang'ono) shrinkage), pamwamba youma koma mkati monyowa (kukopa misampha chinyezi), ndi m'mbali zokhuthala (khofi-ring effect). Zothetserazo zimaphatikizapo mbiri yowumitsa bwino, mpweya wabwino, ndi kusamalidwa bwino kwa gawo lapansi.

PTFE emulsion impregnation wa fiberglass nsalu amafuna othandizira osiyanasiyana kukwaniritsa ❖ kuyanika yunifolomu, adhesion amphamvu, ndi malo opanda chilema. Zowonjezera zazikulu ndizo: zonyowetsa (kuchepetsa kupsinjika kwa pamwamba, kupititsa patsogolo kulowa), thickeners (kuwongolera kukhuthala ndi kulemera kwa zokutira), zowongolera pH (kukhazikika emulsion pa pH 9-10), ma silane coupling agents (owonjezera kumamatira kugalasi), zida zopangira mafilimu (PFA/FEP ya sintering), zodzaza ntchito (zoletsa kubisala), zoletsa kubisala (kuchedwetsa kuyanika). Kusankhidwa kumatengera gawo lapansi komanso zofunikira pakuchita.

Nsalu yagalasi yowonjezeredwa ya fiberglass (nsalu ya ulusi wochuluka) imasiyana kwambiri ndi nsalu wamba ya fiberglass pamapangidwe a ulusi. Kupyolera mu chithandizo cha jeti ya mpweya wothamanga kwambiri, zitsulo zamagalasi zopitirira zimalekanitsidwa, zopindika, ndi kufinyidwa kukhala ulusi wowala ngati thonje. Izi zimapanga nsalu zokulirapo, zofewa zokhala ndi kutenthetsa kwapamwamba kwambiri (zosanjikiza mpweya), kufananiza bwino, kusefera kwapamwamba, komanso kukana kung'ambika / kusinthasintha - pamtengo wa mphamvu yotsika pang'ono. Amagwiritsidwa ntchito popanga ma gaskets otentha kwambiri, zokutira mapaipi, zikwama zosefera, ndi zisindikizo za uvuni.

Nsalu ya PTFE yotentha kwambiri (PTFE-yokutidwa ndi fiberglass) imakhala yocheperako, koma zinthu zina zimayambitsa dzimbiri nthawi zina. Kuukira kwachindunji kwa PTFE kumachitika ndi zitsulo zosungunuka za alkali (sodium, potaziyamu), ma fluorinating agents amphamvu (F₂, ClF₃) pa kutentha kwambiri, ndi alkalis amphamvu osungunuka pamwamba pa 300 ° C. Kudzimbiri kosalunjika kumachitika pamene hydrofluoric acid (HF), alkali yotentha kwambiri, kapena asidi wotentha wa phosphoric alowa ndi zopindika ndikuukira gawo lapansi la fiberglass. Pakuti kwambiri mankhwala utumiki, ntchito koyera PTFE filimu popanda fiberglass.