Polyurethane ke eng?

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.


Nako ea poso: Oct-27-2022