Ultra-filtration (UF) yog cov txheej txheem sib cais membrane uas ntxuav thiab cais cov kev daws teeb meem.Los tiv thaiv kev ua qias tuaj PVDF ultrafiltration membrane siv cov khoom siv polymer polyvinylidene fluoride ua cov ntaub ntawv tseem ceeb, PVDF membrane nws tus kheej muaj zog oxidation tsis kam, tom qab cov khoom siv tshwj xeeb hloov kho thiab muaj hydrophilicity zoo, nyob rau hauv cov txheej txheem ntawm daim nyias nyias los ntawm scientific micropore tsim thiab micropore qauv tswj, micropore pore loj mus txog qib ultrafiltration.Cov khoom siv membrane no muaj qhov zoo ntawm cov pores zoo sib xws, siab pom tseeb, dej nkag mus rau hauv ib cheeb tsam, oxidation tsis kam thiab siab tensile zog.