Polyurethane (PU), eo lebitso la eona le felletseng e leng polyurethane, ke motsoako oa polymer.E ile ea hlahisoa ke Otto Bayer le ba bang ka 1937. Polyurethane e na le mekhahlelo e 'meli: mofuta oa polyester le mofuta oa polyether.Li ka etsoa ka polasetiki ea polyurethane (haholo-holo foam), likhoele tsa polyurethane (tse bitsoang spandex Chaena), rabara ea polyurethane le li-elastomers.
Polyurethane e bonolo haholo e na le sebopeho sa mela ea thermoplastic.E na le botsitso bo betere, ho hanyetsa lik'hemik'hale, ho tiea le lisebelisoa tsa mochini ho feta lisebelisoa tsa foam tsa PVC, 'me e na le deformation e fokolang ea compression.Ho kenya mocheso o motle, ho kenya molumo, ho thibela ho sisinyeha le ts'ebetso ea anti-virus.Ka hona, e sebelisoa e le ho paka, ho koala molumo, le lisebelisoa tsa filthara.
Plastiki e thata ea polyurethane e na le boima bo bobebe, ho kenya molumo o motle haholo, ts'ebetso ea ho kenya mocheso, ho hanyetsa lik'hemik'hale, ts'ebetso e ntle ea motlakase, ts'ebetso e bonolo, le ho monya metsi a tlase.E sebelisoa haholo-holo e le thepa ea meralo bakeng sa kaho, likoloi, indasteri ea lifofane, le ho kenya mocheso oa mocheso.
Thepa ea polyurethane elastomer e pakeng tsa polasetiki le rabara, ho hanyetsa oli, khanyetso ea abrasion, ho hanyetsa mocheso o tlase, ho hanyetsa botsofali, boima bo phahameng le elasticity.E sebelisoa haholo indastering ea lieta le indasteri ea bongaka.Polyurethane e ka boela ea sebelisoa ho etsa li-adhesives, li-coat, letlalo la maiketsetso, joalo-joalo.
Polyurethane e hlahile lilemong tsa bo-1930.Ka mor'a lilemo tse ka bang mashome a robeli tsa tsoelo-pele ea theknoloji, thepa ena e 'nile ea sebelisoa haholo lefapheng la thepa ea ka tlung, kaho, litlhoko tsa letsatsi le letsatsi, lipalangoang le lisebelisoa tsa lapeng.
Mmaraka oa lefats'e oa polyurethane o fumaneha haholo linaheng tse tsoetseng pele Europe le Amerika.Sebaka sa Asia-Pacific se emeloa haholo ke China, Japane le Korea Boroa.Linaha tse kaholimo le libaka li nka karolo ea 90% ea 'maraka oa lefatše oa polyurethane.Har'a bona, kakaretso ea naha ea heso e sebelisoang ke polyurethane e nka halofo ea lefats'e.Ho na le mefuta e mengata ea lihlahisoa tsa polyurethane lefatšeng mme li sebelisoa mafapheng a fapaneng.Qetellong ea 2016, kakaretso ea polyurethane lefatšeng e fihlile ho lithane tse ka bang limilione tse 22.
Nako ea poso: Jun-03-2019