Polyvinyl alcohol (PVA) resin is a polymer. It’s usually a white or slight yellow flocculent, flake, grnular or powdery solid. Its molecular formular is (C2H4O)n. It’s non-toxic, insipid, non-polluting. PVA is a water-soluble resin and has good chemical...
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polyvinyl alcohol, PVA, PVOH, PVAL, PVAC...
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