PU tawv thiab PVC tawv yog cov khoom siv hluavtaws ib txwm siv los ua lwm txoj hauv kev ua tawv nqaij tsoos. Thaum lawv zoo sib xws nyob rau hauv tsos, lawv muaj qee qhov kev sib txawv uas tseem ceeb ntawm cov nqe lus ntawm kev sib xyaw, kev ua tau zoo, thiab ib puag ncig cuam tshuam.
PU tawv yog tsim los ntawm ib txheej txheej ntawm polyurethane uas tau sib khi rau cov khoom siv tom qab. Nws yog softer thiab hloov tau yooj yim dua li PVC tawv, thiab nws muaj kev ntxhib los mos ntau uas zoo li tawv. PU tawv kuj tseem ua pa ntau dua PVC tawv, ua rau nws nyiam dua hnav rau ncua sijhawm. Ib qho ntxiv, PU tawv yog ntau ib puag ncig ua phooj ywg piv rau PVC tawv txij li nws tsis muaj cov kev phom sij zoo li phthalates thiab yog biodegradable.
Ntawm qhov tod tes, txhuam tawv yog tsim los ntawm txheej yas yas polymer mus rau cov ntaub nram qab cov khoom. Nws yog ntau ruaj khov thiab tiv taus kev puas ntsoog ntau dua li PU tawv, ua nws cov khoom tsim nyog rau kev ua cov khoom uas muaj kev ntxhib, xws li hnab. Pvc tawv kuj tseem pheej yig thiab yooj yim los ntxuav, ua rau nws xaiv nrov rau kev siv cov ntawv thov kev hloov kho. Txawm li cas los xij, pvc tawv tsis ua pa li pus li li pu tawv thiab muaj cov tawv nqaij tsawg dua uas tsis tuaj yeem ua kom nruj li.
Hauv cov ntsiab lus, thaum PU tawv yog softer, ntau dua ib puag ncig phooj ywg, PVC tawv yog ntau ruaj thiab yooj yim los ntxuav. Thaum txiav txim siab ntawm ob cov ntaub ntawv, nws yog ib qho tseem ceeb uas yuav tsum xav txog kev siv thiab kev ua tau zoo ntawm cov khoom kawg, nrog rau qhov muaj peev xwm ntawm ib puag ncig.
Lub sij hawm Post: Jun-01-2023
