I-Polyurethane (PU), igama eligcwele le-polyurethane, iyinhlanganisela ye-polymer.Yenziwe ngu-Otto Bayer ngo-1937. I-polyurethane ihlukaniswe izigaba ezimbili: uhlobo lwe-polyester nohlobo lwe-polyether.Angenziwa amapulasitiki e-polyurethane (ikakhulukazi amapulasitiki anegwebu), imicu ye-polyurethane (ebizwa ngokuthi i-spandex e-China), amarabha e-polyurethane nama-elastomers.

I-polyurethane ethambile ngokuyinhloko iyisakhiwo somugqa we-thermoplastic, esinokuzinza okungcono, ukumelana namakhemikhali, ukuqina kanye nezakhiwo zemishini kunezinto zegwebu le-PVC, futhi linokuguqulwa okuncane kokucindezelwa.Inokufakwa kahle kwe-thermal, ukufakwa komsindo, ukumelana nokushaqeka nokusebenza kwe-anti-virus.Ngakho-ke, isetshenziswa njengokupakisha, ukwahlukanisa umsindo, izinto zokuhlunga.

Ipulasitiki ye-polyurethane eqinile inesisindo esincane, ihle kakhulu ekufakeni umsindo kanye nokufaka ukushisa okushisayo, ukumelana namakhemikhali, izakhiwo ezinhle zikagesi, ukucutshungulwa kalula, nokumunca amanzi aphansi.Isetshenziswa kakhulu ekwakhiweni, kwezimoto, embonini yezindiza, izinto zokwakha ezishisayo.Izakhiwo ze-polyurethane elastomers ziphakathi kwepulasitiki nenjoloba, ukumelana nowoyela, ukumelana nokugqoka, ukumelana nokushisa okuphansi, ukumelana nokuguga, ukuqina okuphezulu nokunwebeka.Isetshenziswa kakhulu embonini yezicathulo kanye nemboni yezokwelapha.I-polyurethane nayo ingasetshenziselwa ukwenza izinto zokunamathisela, ukunamathela, isikhumba sokwenziwa, njll.

I-polyurethane yavela ngawo-1930.Ngemva kweminyaka ecishe ibe ngu-80 yokuthuthuka kobuchwepheshe, le nto isisetshenziswe kabanzi emkhakheni wefenisha yasekhaya, ukwakhiwa, izidingo zansuku zonke, ezokuthutha, nezinto zikagesi zasendlini.

Isimemezelo:Okunye okuqukethwe kuvela ku-inthanethi, futhi umthombo uqashelwe.Zisetshenziselwa kuphela ukukhombisa amaqiniso noma imibono eshiwo kulesi sihloko.Ezokuxhumana nokufunda kuphela, futhi azizona ezinye izinjongo zentengiso.Uma kukhona ukwephulwa komthetho, sicela usithinte ukuze sikususe ngokushesha.