Nsalu yotentha kwambiri ya PTFE imapangidwa kudzera mumiyezo imodzi yokha (chiphaso chimodzi: chofulumira, chotsika mtengo, chophikira chopyapyala, cholimba chokhala ndi mapini) kapena kuyika kwamitundu yambiri (madutsa 2-3+: zosalala, wandiweyani, wopanda pinhole, PTFE zili 50-70%, magwiridwe antchito apamwamba, mtengo wapamwamba). Dip imodzi imagwirizana ndi ma gaskets otsika, mateti osakhalitsa, ndi zinthu zopumira. Ma dip ambiri amafunikira pamapepala ophikira zakudya, malamba onyamula osamata, magawo ozungulira othamanga kwambiri, ma liner amankhwala, ndi nembanemba zamamangidwe.

PTFE pamwamba kutentha nsalu pamwamba mankhwala amaswa inertness mankhwala kwa kugwirizana/kusindikiza. Njira zinayi: etching mankhwala (sodium-naphthalene, pamwamba mphamvu 20→ 40-50 dyn/cm, wosanjikiza mdima wokhazikika, micro-porous structure), mankhwala a plasma (nano-roughening, ntchito gulu Ankalumikiza, lalifupi yogwira zenera), corona mankhwala (woonda-filimu, mofulumira kuwola, pang'ono kuya), ndi laser chithandizo (molondola yaying'ono-patterning, controlled carbonization). Njira zonse zimakhala zowawa ndikuyambitsa magulu a polar (C=O, -OH, -COOH) kuti athe kulumikiza zomatira.

Kuyera kwazinthu zopangira ndiye maziko oyambira amtundu wa PTFE wotentha kwambiri. Zonyansa (zoyambira zotsalira, zowonjezera, ma ion zitsulo, zoipitsidwa) zimayambitsa kuwonongeka kwa kutentha msanga (mathovu, matuza opitilira 260 ° C), malo osamata (malo omatira), kuchepetsa kutchinjiriza kwa magetsi (kutayika kwa dielectric, kutsika kwamagetsi), kufooka kwamphamvu kwamakina (ndi kupsinjika kwamtundu wachikasu), kufooka kwa makina (ndi kupsinjika kwachikasu). Zopangira zoyera kwambiri zimatsimikizira kuti FDA imagwirizana, imakhala ndi moyo wautali, nsalu ya PTFE yogwira ntchito kwambiri.

PTFE- TACHIMATA fiberglass nsalu nsalu sintering amafuna yeniyeni kugwira nthawi pa 370-400 °C. Ng'anjo zopitilira: 30-90s (zoonda) mpaka 3-5+ min (zokhuthala). Ng'anjo zamagulu: 5-15 min. Pansi-sintering kumayambitsa opaque, zokutira zaukali zomwe zimasenda; Kuchuluka kwa sinter kumayambitsa chikasu, brittleness, ndi kutulutsa mpweya wapoizoni wa fluoride. Kukhathamiritsa kwa njira: gwiritsani ntchito zowunikira kutentha kwa ng'anjo, fufuzani zowoneka (zowoneka bwino, zosinthika), ndikuyesa kuyesa kukoka matepi. Nthawi zonse onetsetsani kutentha kokwanira.

Nsalu ya PTFE yotentha kwambiri imafuna kusamala mosamala kuti zitsimikizire chitetezo ndi moyo wautali. Njira zazikulu zodzitetezera: musapitirire 260 ° C (pamwamba pa 320 ° C imatulutsa utsi wapoizoni), pewani mikwingwirima yakuthwa (yopaka ming'alu, imawonetsa magalasi a fiberglass), osatsukidwa ndi abrasive (ubweya wachitsulo umawononga malo osamangira ndodo), sungani chilolezo chokulitsa kutentha (kuletsa kung'ambika), ndikuyikanso m'malo mwa matuza kapena kusenda. Sitolo idagubuduzika, kutali ndi UV. Valani magolovesi oteteza kutentha mukamagwira ntchito.

Nsalu ya PTFE yotentha kwambiri imakhala ndi coefficient of thermal expansion (CTE) ya 30-60 ppm/°C (warp/weft) - yapamwamba kuposa fiberglass yokha koma yotsika kwambiri kuposa PTFE yoyera (100-200 ppm/°C). PTFE imasintha modzidzimutsa (1-2%) pa 19 ° C ndi 30 ° C kusintha kwa gawo. Kupewa kung'ung'udza, kung'ambika, ndi kung'ambika: zilolezo zamapangidwe kuti zikulitseni kwaulere, pewani kukanikiza pakusintha kutentha kwa gawo, gwiritsani ntchito ma tensioner pa malamba otumizira, ndikuyikani anti-buckling overlop design. Kuyendera pafupipafupi kwa kuzizira ndikofunikira.

PTFE zowotchera nsalu zotentha kwambiri za PTFE zimapereka maubwino anayi: magwiridwe antchito osamata (palibe mafuta kapena ufa wofunikira, makeke osakhwima amamasulidwa bwino), kutentha kwakukulu (-70°C mpaka 260°C, otetezeka ku uvuni mpaka mufiriji), kugwiritsiridwa ntchitonso (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 chosakhala ndi ndodo ndi nsalu zomangira zosindikizira kutentha (amateteza ma platens kuti asaipitsidwe), 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).

Anti-static PTFE nsalu zimatheka kudzera njira zikuluzikulu ziwiri: ❖ kuyanika doping (kusakaniza zodzaza conductive ngati mpweya wakuda mu PTFE emulsion, kupanga percolation network pa ndende yovuta) ndi gawo lapansi kuluka (embedding ulusi conductive mu fiberglass nsalu). Kulimbana kwapamwamba kumayendetsedwa pa 10⁵–10⁹ Ω. Mfundo: pangani njira yoyendetsera yomwe imatulutsa ma static charges nthawi yomweyo, kupewa kudzikundikira kowopsa. Kuyika pansi ndikofunikira kuti ntchito igwire bwino.

Nsalu yotentha kwambiri ya PTFE (PTFE-yokutidwa ndi fiberglass) imapereka kukana kwapadera kwamankhwala, kupirira ma acid (kuphatikiza aqua regia), alkali amphamvu (kutentha), zosungunulira organic, ndi 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.