Ukuze kuncishiswe izindleko zomkhiqizo futhi kutholakale ukusebenza okwengeziwe,i-thermoplastic ye-polyurethaneAma-elastomer angasetshenziswa njengezinto zokuqinisa ezivame ukusetshenziswa ukuqinisa izinto ezahlukene zerabha ze-thermoplastic kanye nerabha eziguquliwe.
Ngenxa yei-polyurethaneNjengoba iyi-polymer e-polar kakhulu, ingahambisana nama-resin noma ama-raber e-polar, njengalapho isetshenziswa kanye ne-polyethylene e-chlorinated (CPE) ukukhiqiza imikhiqizo yezokwelapha; Ukuxuba ne-ABS kungathatha indawo yokusetshenziswa kwepulasitiki ye-thermoplastic yobunjiniyela; Uma isetshenziswa kanye ne-polycarbonate (PC), inezakhiwo ezifana nokumelana namafutha, ukumelana nophethiloli, kanye nokumelana nomthelela, futhi ingasetshenziswa ukwenza imizimba yezimoto; Ukuxuba ne-polyester kungathuthukisa ukusebenza kwayo kokuqina; Ngaphezu kwalokho, ingahambisana kahle ne-polyvinyl chloride, i-polyoxymethylene (POM), noma i-polyvinyllidene chloride; i-polyester polyurethane ingahambisana kahle nerabha ye-nitrile engu-15% noma irabha ye-nitrile/polyvinyl chloride engu-40%; i-polyether polyurethane ingahambisana kahle ne-40% nitrile rubber/polyvinyl chloride blend adhesive; ingahambisana futhi ne-acrylonitrile styrene (SAN) copolymers; Ingakha isakhiwo senethiwekhi ehlanganayo (IPN) ngama-polysiloxanes asebenzayo. Iningi elikhulu lezinamathiseli ezihlanganisiwe ezishiwo ngenhla selivele likhiqizwe ngokusemthethweni.
Eminyakeni yamuva nje, kube nocwaningo olwandayo mayelana nokuqina kwe-POMI-TPUeShayina. Ukuhlanganiswa kwe-TPU ne-POM akugcini nje ngokuthuthukisa ukumelana nokushisa okuphezulu kanye nezakhiwo zemishini ze-TPU, kodwa futhi kuqinisa kakhulu i-POM. Abanye abacwaningi bakhombisile ukuthi ekuhlolweni kokuqhekeka okucindezelekile, uma kuqhathaniswa ne-POM matrix, ama-POM alloys ane-TPU angeziwe adlula ekuguqukeni kusuka ekuqhekekeni okuqhekekile kuya ekuqhekekeni okuhlanganisiwe. Ukwengezwa kwe-TPU kuphinde kunikeze i-POM ukusebenza kwememori yesimo. Isifunda sekristalu se-POM sisebenza njengesigaba esinqunyiwe se-alloy yememori yesimo, kuyilapho isifunda esingaguquki se-TPU ne-POM engaguquki sisebenza njengesigaba esiguqukayo. Lapho izinga lokushisa lokuphendula kokululama lingu-165 ℃ futhi isikhathi sokululama singamasekhondi angu-120, izinga lokululama le-alloy lifinyelela ngaphezu kwama-95%, futhi umphumela wokululama ungcono kakhulu.
I-TPU kunzima ukuhambisana nezinto ze-polymer ezingezona ezi-polar ezifana ne-polyethylene, i-polypropylene, irabha ye-ethylene propylene, irabha ye-butadiene, irabha ye-isoprene, noma i-waste rubber powder, futhi ayikwazi ukukhiqiza izinto ezihlanganisiwe ngokusebenza okuhle. Ngakho-ke, izindlela zokwelapha ubuso njenge-plasma, i-corona discharge, i-wet chemistry, i-primer, i-flame, noma amagesi asebenzayo zivame ukusetshenziswa kulokhu kokugcina. Isibonelo, imikhiqizo yomoya yaseMelika kanye nezinkampani zamakhemikhali zingathuthukisa kakhulu i-modulus yokugoba, amandla okudonsa, kanye nokumelana nokuguguleka kwe-polyethylene fine powder enesisindo sama-molecule esingu-3-5 million ngemuva kokwelashwa kobuso begesi esebenzayo ye-F2/O2, futhi ingezwe kuma-polyurethane elastomers ngesilinganiso esingu-10%. Ngaphezu kwalokho, ukwelashwa kobuso begesi esebenzayo ye-F2/O2 kungasetshenziswa kuma-fiber amafushane aqondiswe ubude obungu-6-35mm okukhulunywe ngawo ngenhla, okungathuthukisa ukuqina nokuqina kokuklebhuka kwezinto ezihlanganisiwe.
Isikhathi sokuthunyelwe: Jan-19-2024