Lihlahisoa

Polyurethane (PU), lebitso le felletseng ke polyurethane, ke motsoako oa polymer.E entsoe ke Otto Bayer ka 1937.Polyurethane e arotsoe ka lihlopha tse peli: 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.

Polyurethane e bonolo haholo ke sebopeho sa mela ea thermoplastic, se nang le botsitso bo betere, ho hanyetsa lik'hemik'hale, ho tiea le thepa ea mochini ho feta thepa ea foam ea PVC, 'me e na le deformation e fokolang ea compression.E na le ts'ebetso e ntle ea mocheso, ho koala molumo, ho hanyetsa ts'oaetso le ts'ebetso ea anti-virus.Ka hona, e sebelisoa e le ho paka, ho kenya molumo, lisebelisoa tsa filthara.

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.

Ts'ebetso ea polyurethane elastomer e pakeng tsa polasetiki le rabara, ho hanyetsa oli, ho hanyetsa ho roala, ho hanyetsa mocheso o tlase, ho hanyetsa botsofali, boima bo 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.