Polyvinyl alcohol (PVA) yog ib hom polymer tseem ceeb uas muaj kev siv ntau hauv ntau qhov chaw ua haujlwm. Nws tau siv hauv tshauv ua raw materials rawr kom zoo dua thiab muaj zog tshaj. Hauv kev tsim kho, PVA tau ntxiv rau kev sib ntxiv thiab coatings kom txhim kho qhov txaus siab, muab kev sib ntxig zoo dua thiab kev ua kom meej. PVA kuj muaj feem ntau hauv kev tsim cov films thiab coatings uas tuaj yeem kuaj kom sov, yog li nws yog qhov xaiv zoo rau kev nres kho thiab coatings tiv thaiv.