Polyurethane hnav-cov khoom tiv taus yog tsim los siv siab-molecular- hnyav polyurethane cov ntaub ntawv, muab tshwj xeeb hnav tsis kam, elasticity, thiab toughness. Piv nrog rau cov khoom siv hlau ib txwm siv, cov ntaub ntawv polyurethane yog qhov sib zog me ntsis, tab sis muaj kev hnav zoo dua -txawm tias nyob hauv ib puag ncig uas muaj kev cuam tshuam loj thiab kev sib txhuam hnyav. Lawv lub ntsej muag du txo qhov muaj feem ntawm cov khoom siv adhesion thiab clogging, thaum lawv cov khoom elastic ua rau lawv nqus tau qhov cuam tshuam ntawm cov khoom tuaj, yog li txo qis kev poob siab thiab hnav ntawm cov khoom siv. Tsis tas li ntawd, cov khoom siv polyurethane no muaj kev tiv thaiv zoo heev rau corrosion, acids, alkalis, thiab roj, uas tso cai rau lawv hloov mus rau ntau yam kev ua haujlwm nyuaj thiab ua rau muaj kev pab cuam lub neej ntev.
Tshaj li lawv cov kev ua tau zoo, polyurethane hnav- cov khoom tiv taus yog yooj yim rau nruab thiab hloov; lawv tuaj yeem ua kev cai- tsim nyob rau hauv ntau yam kev qhia tshwj xeeb thiab cov duab kom haum rau cov khoom siv tshwj xeeb thiab cov chaw ua haujlwm. Lawv superior elasticity thiab hnav tsis kam pab txo qhov zaus ntawm cov khoom siv tu thiab txo qis qis, ua rau txo qis hauv kev saib xyuas cov nqi. Raws li qhov tshwm sim, kev tiv thaiv zoo ntawm cov khoom siv polyurethane no tiv thaiv kev ncaj ncees ntawm cov khoom siv thiab txhim kho kev tshuaj ntsuam xyuas, yog li txhawb nqa tag nrho cov khoom lag luam thiab kev lag luam rov qab.
