Polyurethane (PU), uas nws lub npe tag nrho yog polyurethane, yog ib qho polymer compound.Nws tau tsim los ntawm Otto Bayer thiab lwm tus hauv xyoo 1937. Polyurethane muaj ob pawg: hom polyester thiab hom polyether.Lawv tuaj yeem ua rau hauv cov yas polyurethane (feem ntau yog ua npuas ncauj), polyurethane fibers (hu ua spandex hauv Suav teb), polyurethane roj hmab thiab elastomers.
Mos polyurethane feem ntau muaj cov qauv thermoplastic linear.Nws muaj kev ruaj ntseg zoo dua, tshuaj tiv thaiv, resilience thiab txhua yam khoom dua li cov ntaub ntawv PVC ua npuas ncauj, thiab muaj tsawg compression deformation.Zoo rwb thaiv tsev kub, suab rwb thaiv tsev, tiv thaiv kev vibration thiab tiv thaiv kab mob kev ua haujlwm.Yog li ntawd, nws yog siv los ua ntim, suab rwb thaiv tsev, thiab lim khoom.
Rigid polyurethane yas muaj lub teeb yuag, zoo heev suab rwb thaiv tsev, tshav kub rwb thaiv tsev kev ua tau zoo, tshuaj tiv thaiv, hluav taws xob zoo, ua tau yooj yim, thiab tsis tshua muaj dej nqus.Nws yog tsuas yog siv los ua cov khoom siv rau kev tsim kho, tsheb, kev lag luam aviation, thiab thermal rwb thaiv tsev.
Cov khoom ntawm polyurethane elastomer yog nruab nrab ntawm cov yas thiab roj hmab, roj tsis kam, puas ntsoog, tsis kub tsis kam, aging kuj, siab hardness thiab elasticity.Feem ntau siv hauv kev lag luam khau thiab kev lag luam kho mob.Polyurethane kuj tseem siv tau los ua cov nplaum, txheej, tawv hluavtaws, thiab lwm yam.
Polyurethane tau tshwm sim hauv xyoo 1930.Tom qab ze li yim caum xyoo ntawm kev txhim kho thev naus laus zis, cov khoom siv no tau siv dav hauv cov khoom siv hauv tsev, kev tsim kho, cov khoom siv niaj hnub, kev thauj mus los, thiab cov khoom siv hauv tsev.
Kev lag luam thoob ntiaj teb polyurethane yog nyob rau hauv cov teb chaws tsim nyob hauv Europe thiab Amelikas.Cov cheeb tsam Asia-Pacific feem ntau yog sawv cev los ntawm Tuam Tshoj, Nyiv, thiab Kaus Lim Qab Teb.Lub teb chaws thiab cheeb tsam saum toj no suav txog 90% ntawm lub ntiaj teb polyurethane ua lag luam.Ntawm lawv, kuv lub teb chaws tag nrho cov polyurethane noj nyiaj rau ib nrab ntawm lub ntiaj teb no.Muaj ntau ntau hom polyurethane khoom nyob rau hauv lub ntiaj teb no thiab lawv tau siv nyob rau hauv ntau yam teb.Txog rau thaum xaus ntawm 2016, tag nrho cov zis ntawm polyurethane nyob rau hauv lub ntiaj teb no tau mus txog 22 lab tons.
Post lub sij hawm: Jun-03-2019