Kayayyaki

Polyurethane (PU), cikakken suna shine polyurethane, wani fili ne na polymer.Otto Bayer ne ya yi shi a cikin 1937. Polyurethane ya kasu kashi biyu: nau'in polyester da nau'in polyether.Ana iya yin su su zama robobi na polyurethane (wanda aka fi sani da robobi mai kumfa), polyurethane fibers (wanda ake kira spandex a China), rubbers na polyurethane da elastomers.

Polyurethane mai laushi shine galibi tsarin layi na thermoplastic, wanda ke da mafi kyawun kwanciyar hankali, juriya na sinadarai, juriya da kaddarorin inji fiye da kayan kumfa na PVC, kuma yana da ƙarancin nakasar matsawa.Yana da insulation mai kyau na thermal, sautin sauti, juriya da kuma aikin rigakafin cutar.Sabili da haka, ana amfani dashi azaman marufi, sautin sauti, kayan tacewa.

Filastik polyurethane mai ƙarfi yana da haske a cikin nauyi, yana da kyau a cikin ƙirar sauti da haɓakar thermal, juriya na sinadarai, kyawawan kayan lantarki, sauƙin sarrafawa, da ƙarancin ɗaukar ruwa.An fi amfani da shi a cikin gine-gine, motoci, masana'antar jirgin sama, kayan gini na thermal.

Ayyukan elastomer na polyurethane yana tsakanin filastik da roba, juriya na man fetur, juriya na juriya, juriya mai ƙananan zafin jiki, juriya na tsufa, babban taurin da elasticity.An fi amfani dashi a masana'antar takalma da masana'antar likitanci.Hakanan za'a iya amfani da polyurethane don yin manne, sutura, fata na roba, da dai sauransu.

Polyurethane ya bayyana a cikin 1930s.Bayan kusan shekaru 80 na ci gaban fasaha, an yi amfani da wannan kayan a ko'ina a fagen kayan gida, gini, kayan yau da kullun, sufuri, da na'urorin gida.