Polyvinyl alcohol (PVAL, PVA, PVOH) is a thermoplastic material that is produced as a white to yellowish powder, mostly by saponification (hydrolysis) of polyvinyl acetate (PVAC). The direct synthetic route is not possible.
PVAL is resistant to almost all anhydrous organic solvents. Partially saponified PVAL grades with approx. 13% PVAC content are readily soluble in water. As the degree of saponification increases, the solubility in water decreases.
Paper manufacturing & processing, plywood, art board & wood processing, emulsifying and stabilizing agents, construction industry, PVA film, printing, textile.
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