Yintoni iPolyurethane?

I-Polyurethane (PU), igama elipheleleyo le-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.Iimpawu ze-polyurethane elastomers ziphakathi 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.

I-polyurethane 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.

Isibhengezo:Eminye imixholo ivela kwi-Intanethi, kwaye umthombo uye waphawulwa.Zisetyenziselwa kuphela ukubonisa izibakala okanye izimvo ezichazwe kweli nqaku.Zezonxibelelwano kunye nokufunda kuphela, kwaye azikho ezinye iinjongo zorhwebo.Ukuba kukho naluphi na ulwaphulo, nceda uqhagamshelane nathi ukuze ucime ngokukhawuleza.


Ixesha lokuposa: Oct-27-2022