PVA yog daim duab npe tshaj plaws rau polyvinyl alcohol thiab txhais tau tias yog ib txoj hlua ntawm cov khoom siv siv nyob rau hauv qhov chaw tsav tsheb. PVA khoom siv yog tso siab ntau rau kev nyiaj ib tug, kev ua film sib xws, thiab kev tsav tsheb sib txawv. Nyob rau hauv duab thiab kev sau npe, PVA pab txhim kho zog ntawm saum npoo thiab lub cev sau npe. Nyob rau hauv kev lag luam, nws ua haujlwm los ntawm kev pab zoo dua rau yam khoom uas pab txhim kho kev ua haujlwm ntawm tus kab. Cov khoom siv rau kev tsim kho tsev siv PVA rau kev txhim kho kev nyiaj thiab kev ua haujlwm. PVA kuj siv nyob rau hauv cov khoom siv ua kev nyiaj, coatings, thiab kev tsav tsheb khem ua kev pab. Kev xaiv cov PVA ntxiv nyob ntawm kev siv viscosity, hydrolysis degree, thiab qhov chaw siv. Cov neeg siv khoom xav tau kev pab zoo dua rau PVA yuav tsum hu rau peb rau kev pab ntau.