Ifilimu ye-PTFE inokufikelela kumgangatho we-DIN4012 wokukhusela umlilo kwinqanaba le-B1, ukushisa okunyibilikayo kunokufikelela kwi-200 ℃, kwaye akulula ukubamba umlilo.Ubunzima bokukhanya, i-ductility elungileyo, amandla aphezulu oxinzelelo, akukho lula ukukrazula.Ubomi benkonzo ende, engaphantsi kweminyaka engama-30, i-raw material eyanelisayo kwi-double-layer removable roof structures.Ngenxa yokuba ifilimu ye-PTFE itywina ikhonkco lesakhiwo semolekyuli ngeeathom zefluorine, ukukwazi kwayo ukufunxa ezinye izinto zekhemikhali kubuthathaka kakhulu.Kwihlabathi elikhulu, umphezulu wefilimu ye-PTFE imalunga ne-185N/M, i-raw material iphantsi, kwaye ayincangathi.
Ke ngoko, iifilimu ze-PTFE ikakhulu zibonisa iipropathi ezilungileyo zokuzicoca kunye nokumelana namanzi.Ifilimu yeTeflon yinto ekrwada yeTeflon-coated glass fiber.I-PTFE ithambile kakhulu kwisimo esiqinileyo.Ingubo kufuneka inyibilike kwaye ifakwe kwi-fiberglass.Iqondo lobushushu lokunyibilika lingaphezulu kwe-400 ℃, kwaye i-frequency yokugquma ifuna amaxesha angama-10.Kule khonkco, i-fiber yeglasi iya kuba phuzi ngenxa yokushisa okuphezulu, kwaye ngokuphindaphindiweyo ukugubungela, umbala unzima.Ke ngoko, izinto zefilimu ye-PTFE polytetrafluoroethylene zisandula ukuvelisa umbala omdaka.Nangona kunjalo, imathiriyeli yefilimu ye-PTFE polytetrafluoroethylene inokwetyisa kwaye ifunxe imitha ye-ultraviolet ekukhanyeni kwelanga.
Ifilimu yeTeflon ayinakuncamathelwa.Ukususela kuhlalutyo lweempawu zayo ezibonakalayo, kukho ezi zizathu zilandelayo ezibalulekileyo: umgangatho ophantsi, ubukhulu becala elikhulu, uhlalutyo olulungileyo lokuzinza kweekhemikhali, isakhiwo esinomlinganiselo ophezulu wefilimu ye-polytetrafluoroethylene, kunye nexabiso eliphantsi le-SP le-parameter ye-solubility yefilimu ye-polytetrafluoroethylene.Umphezulu uphantsi, kwaye ukuxhaswa kwendawo kwinqanaba elibalulekileyo ngokuqhelekileyo alikho likhulu.I-PTFE inoxinzelelo lwangaphambili lwe-interfacial tension ye-118 degrees, i-rearward interfacial tension ye-91 degrees, kunye ne-interfacial tension ye-104 degrees.Zonke iimathiriyeli ekrwada zinkulu kwaye ukuxinana kobuso kuphezulu.Uluhlu lokuthambisa luncinci, oko kukuthi, ukuncamatheliswa kakubi kunye nokunamathelisa okunganelanga.Ifilimu yeplastiki yeTeflon emanzi, ngoko ke akukho kubambelela kakuhle kwisayizi yengqolowa yeTeflon, uzinzo oluhle lweekhemikhali zohlalutyo, ukudumba kwe-teflon kunye nokunyibilika konke kuneepholima zekristale azinakugqunywa kwifilimu yeplastiki yeTeflon enzima yepolymer imixokelelwane ye-macromolecular kumphezulu.
Ixesha lokuposa: Aug-01-2022