Cov Lus Sib txawv tseem ceeb ntawm PVA thiab PVOH thiab lawv daim ntawv thov

PVA yog paub txog nws qhov muaj peev xwm zoo heev los tsim cov yeeb yaj kiab thiab vim li ntawd nws yog siv dav hauv cov ntawv thov uas xav tau tsim cov yeeb yaj kiab muaj zog tab sis muaj pliag. Qhov no txhim kho cov khoom ua haujlwm hauv txhua qhov kev thov tshwj xeeb hauv cov pob khoom thiab cov ntaub, uas xav tau kev ruaj khov siab.

Txij li PVOH yog muaj cov yam ntxwv dav, nws tuaj yeem suav nrog hauv ntau qhov kev thov xws li adhesives, coatings, thiab txawm tias cov khoom siv hauv tsev. Qhov no muaj pliag ua rau cov polymer no yog ib qho cuab yeej tseem ceeb rau cov tuam txhab uas xav tau cov tswv yim tshiab rau kev tsim khoom.

PVA thiab PVOH ob qho tib si tau tsim nrog kev txhawj xeeb txog ib puag ncig hauv siab. Raws li ob qho polymer no yog biodegradable, lawv txhawb nqa cov txheej txheem ntsuab hauv cov cheeb tsam xws li, piv txwv, pob khoom lossis cov ntaub, uas yog ib qho lub hom phiaj feem ntau thoob ntiaj teb.