Imikhiqizo

I-Polyurethane (PU), igama eligcwele le-polyurethane, iwuhlobo lwe-macromolecular compound.Yenziwe ngu-Otto Bayer ngo-1937. I-polyurethane ihlukaniswe ngohlobo lwe-polyester nohlobo lwe-polyether.Zingenziwa zibe ipulasitiki ye-polyurethane (ikakhulukazi i-foam plastic), i-polyurethane fiber (ebizwa ngokuthi i-spandex e-China), irabha ye-polyurethane ne-elastomer.I-polyurethane ethambile ngokuyinhloko iyisakhiwo somugqa we-thermoplastic, esinokuzinza okungcono, ukumelana namakhemikhali, ukuqina kanye nezakhiwo zemishini kunezinto zegwebu le-PVC, futhi linokuguqulwa okuncane kokucindezelwa.Ukufakwa kahle kokushisa, ukwahlukanisa umsindo, ukumelana nokushaqeka kanye nokusebenza kokulwa namagciwane.Ngakho-ke, isetshenziswa njengokupakisha, ukwahlukanisa umsindo nezinto zokuhlunga.Ipulasitiki ye-polyurethane eqinile inesisindo esincane, ihle kakhulu ekuhlukaniseni umsindo nokushisa, ukumelana namakhemikhali, kuhle ekusebenzeni kukagesi, kulula ukusetshenzwa, nokumunca amanzi aphansi.Isetshenziswa kakhulu ekwakhiweni, kwezimoto, embonini yezindiza kanye nezinto zokwakha ezishisayo.Ukusebenza kwe-polyurethane elastomer kuphakathi kwepulasitiki nenjoloba, ekwazi ukumelana namafutha, ukuhuzuka, izinga lokushisa eliphansi, ukuguga, ubulukhuni obuphezulu nokunwebeka.Isetshenziswa kakhulu embonini yezicathulo kanye nemboni yezokwelapha.I-polyurethane nayo ingasetshenziselwa ukwenza izinto zokunamathisela, ukunamathela, isikhumba sokwenziwa, njll