Polyurethane (PU), lebitso le felletseng la polyurethane, ke motsoako oa polymer.E entsoe ke Otto Bayer ka 1937. Polyurethane e arotsoe ka mekhahlelo e 'meli: mofuta oa polyester le mofuta oa polyether.Li ka etsoa lipolasetiki tsa polyurethane (haholo-holo lipolasetiki tse foamed), likhoele tsa polyurethane (tse bitsoang spandex Chaena), liraba tsa polyurethane le li-elastomers.

Plastiki e thata ea polyurethane e bobebe ka boima ba 'mele, e sebetsa hantle ka ho kenya molumo le ho kenya mocheso, ho hanyetsa lik'hemik'hale, thepa e ntle ea motlakase, ho sebetsa habonolo le ho monya metsi a tlase.E sebelisoa haholo ho tsa kaho, likoloi, indastering ea lifofane, lisebelisoa tsa sebopeho sa mogote.Thepa ea polyurethane elastomers e pakeng tsa polasetiki le rabara, ho hanyetsa oli, ho hanyetsa ho roala, ho hanyetsa mocheso o tlaase, ho hanyetsa botsofali, ho thatafala ho phahameng le elasticity.E sebelisoa haholo indastering ea lieta le indastering 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 80 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.

Phatlalatso: Tse ling tsa litaba li tsoa Inthaneteng, 'me mohloli o hlokometsoe.Li sebelisoa feela ho bontša lintlha kapa maikutlo a boletsoeng sehloohong sena.Li etselitsoe feela puisano le ho ithuta, 'me ha li molemong oa khoebo.Haeba ho na le tlolo ea molao, ka kopo ikopanye le rona ho hlakola hanghang.