Ukuze unciphise izindleko zomkhiqizo futhi uthole ukusebenza okwengeziwe,I-Polyurethane ThermoplasticAma-elatomers angasetshenziswa njengama-ejenti ajwayelekile asetshenziswa ekuthentekeleni okuhlukahlukene kwe-thermoplastic nezinto zokwakha eziguquliwe.
Ngenxa yePolyurethaneUkuba yi-polymer ebabazekayo, kungahambelana nama-polar resin noma ama-rubber, njengokuthi lapho kusetshenziswa ngokuhlanganiswa ne-chlortethylene (CPE) ukukhiqiza imikhiqizo yezokwelapha; Ukuhlanganiswa ne-AB kungathatha isikhundla sokusetshenziswa kwamapulasitiki we-thermoplastic; Lapho isetshenziswa ngokuhlanganiswa nePolycarbonate (PC), inezakhiwo ezifana nokumelana kawoyela, ukumelana kaphethiloli, nokumelana nomthelela, futhi kungasetshenziswa ukwenza imizimba yemoto; Ukuxuba ne-polyester kungathuthukisa ukusebenza kwayo kobunzima; Ngaphezu kwalokho, ingahambisana kahle ne-polyvinyl chloride, i-polyoxymethylene (pom), noma i-polyvinylidene chloride; I-Polyester Polyurethane ingahambelana kahle ne-15% ye-nitrile ruble noma i-40% ye-nitrile yenjoloba / i-polyvinyl chloride ehlanganisa irabha; Ama-polytheate polyurethane angahambelana kahle ne-40% ye-nitrile rublerubrur / polyvinyl chloride inhlanganisela yokunamathela; Futhi kungahambisana ne-acrylonitrile styrene (san) Copolymers; Kungakha isakhiwo senethiwekhi ye-interpenetrating (ipn) nge-polysiloxanes esebenzayo. Iningi lalezi zinama ezinenhla ezihlanganiswe ngenhla sezivele zikhiqizwe ngokusemthethweni.
Eminyakeni yamuva nje, kube nenani elandayo lokucwaninga ngokuqina kwe-pom byI-TPUeChina. Ukuhlanganiswa kwe-TPU ne-POM akugcini nje ngokuthuthukisa ukumelana okushisa okuphezulu kanye nezakhiwo zemishini ze-TPU, kepha futhi kunesibopho esikhulu se-POM. Abanye abacwaningi babonise ukuthi ekuhlolweni kwe-Tensile Fracture, uma kuqhathaniswa nePom Matrix, ama-Alloys we-POM nge-TPU kwezengezo athola ukuguqulwa kusuka ekuqhekekeni kwe-briclile. Ukungezwa kwe-TPU kuphinde kunikeze amandla ngokusebenza kwememori yokwakhe. Isifunda se-Crystalline kaPom sisebenza njengesigaba esinqunyelwe sememori yokwakha i-alloy, ngenkathi indawo ye-Amorphous TPU ne-POM isebenza njengesigaba esiguqukayo. Lapho izinga lokushisa lokuphendula kabusha liyi-165 ℃ kanti isikhathi sokutakula singu-120 s, izinga lokutakula le-alloy lifinyelela ngaphezulu kwama-95%, futhi umphumela wokutakula ungcono kakhulu.
I-TPU kunzima ukuhambisana nezinto ezingezona ze-polymer ezifana ne-polyethylene, i-polypropylene, irabha ye-ethylene, irovu ye-ethylene, irowu rubber, futhi ayikwazi ukukhiqiza izinto ezihlanganisiwe ngokusebenza okuhle. Ngakho-ke, izindlela zokwelashwa ezingaphezulu ezifana ne-plasma, ukuphuma kwe-corona, chemistry emanzi, i-primer, ilangabi, noma amagesi asebenzayo ajwayele ukusetshenziselwa owokugcina. Isibonelo, imikhiqizo ye-American Air kanye nezinkampani zamakhemikhali zingathuthukisa kakhulu i-modulus yokugoba, amandla ashukumisayo, futhi zigqoke ukumelana kwesisindo se-ultra-high moletural polyethylene kahle ngesilinganiso se-f2 / o2 esisezingeni eliphezulu, bese sengeze ku-polyurethane latomers ngesilinganiso esingu-10%. Ngaphezu kwalokho, ukwelashwa kwegesi okusebenzayo kwe-F2 / O2 kungafakwa kwimicu emifushane esetshenzisiwe ephakeme ngobude obungu-6-35mm okukhulunywe ngenhla, okungathuthukisa ukuqina nokuqina kwezinyembezi zezinto ezibonakalayo.
Isikhathi Sokuposa: Jan-19-2024