Iimveliso

I-Polyurethane (PU), igama elipheleleyo yi-polyurethane, i-polymer compound.Yenziwe ngu-Otto Bayer ngowe-1937.Zingenziwa kwiiplastiki ze-polyurethane (ingakumbi iiplastiki ezinogwebu), iifiber ze-polyurethane (ezibizwa ngokuba yi-spandex e-China), i-polyurethane rubbers kunye ne-elastomers.

I-polyurethane ethambileyo ubukhulu becala sisakhiwo somgca we-thermoplastic, esinozinzo olungcono, ukuxhathisa iikhemikhali, ukomelela kunye neempawu zoomatshini kunezixhobo zogwebu zePVC, kwaye ine-deformation encinci yoxinzelelo.Ine-insulation efanelekileyo ye-thermal, ukugquma kwesandi, ukuxhathisa ukothuka kunye nokusebenza kwe-anti-virus.Ke ngoko, isetyenziselwa ukupakisha, ukugquma isandi, izixhobo zokucoca.

Iplastiki ye-polyurethane eqinile ilula ngobunzima, igqwesileyo kwi-insulation yesandi kunye nokufakwa kwe-thermal, ukuxhathisa imichiza, iimpawu zombane ezilungileyo, ukusetyenzwa lula, kunye nokufunxa kwamanzi aphantsi.Isetyenziswa ikakhulu kulwakhiwo, iimoto, ishishini lokuhamba ngenqwelomoya, izixhobo zokugquma i-thermal.

Ukusebenza kwe-polyurethane elastomer kuphakathi kweplastiki kunye nerabha, ukuxhathisa kweoli, ukuxhathisa ukunxiba, ukumelana nobushushu obuphantsi, ukumelana nokuguga, ubunzima obuphezulu kunye nokuqina.Isetyenziswa kakhulu kwishishini leembadada nakwishishini lezonyango.I-polyurethane ingasetyenziselwa ukwenza izinto zokuncamathelisa, iingubo, isikhumba sokwenziwa, njl.

Ipolyurethane yavela kwi-1930s.Emva kweminyaka ephantse ibe yi-80 yophuhliso lwetekhnoloji, olu lwazi luye lwasetyenziswa ngokubanzi kwinkalo yefenitshala yasekhaya, ulwakhiwo, iimfuno zemihla ngemihla, ezothutho, kunye nezixhobo zasekhaya.