Yintoni pu

I-PU (iPolyurethane) yinto yokwenziwa esetyenziswa ngokubanzi kumashishini ahlukeneyo, kubandakanya nolwakhiwo, i-automotive, ifenitshala kunye nokupakisha. Yinto eguquguqukayo enokwenziwa ukuba ibonelele ngoluhlu lweepropathi zomzimba, kubandakanya ukuqina, ukuguquguquka, kunye nokuxhathisa i-shirmal. I-PU iqhele ukuveliswa ngokuphendula i-polyool kunye ne-catananate phambi kobukhosi kunye nezinye izongezo. I-polymer ekhuthazayo inonxibelelwano lwe-urethane kwi-backbone yayo, enika iipropathi zayo. I-PU ihlala ihlulwa ngokwamatheko njengokuthintela ithenda okanye i-thermoplastic, kuxhomekeka kwimeko yayo yokunyusa. I-thermoset pu inemilinganiselo emithathu yenethiwekhi engenakunyibilikiswa okanye iphinde ihlawulwe, ngelixa i-thermoplastic pu inokunyibilikiswa kwaye iphinde iphinde inyibilike. I-PU idla ngokukhethwe ngokuqinileyo, i-elasticity, kunye nokuxhathisa ioyile, izinyibilikisi, kunye ne-Abrasion. Inokwenziwa ukuba ithambile kwaye ihlabe okanye inzima kwaye iqinile, kuxhomekeka kwisicelo.