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聚乙烯醇,简称PVA,外观为白色或微 黄色纤维状粉术,由聚醋酸乙烯酯经皂化制得。根据皂化程度的不同,产物可溶于水或仅能溶胀。
Polyvinyl alcohol, abbreviated as PVA, has a white or yellowish fibrous powder appearance and is obtained by saponification of polyvinyl acetate. Depending on the degree of saponification, the product is soluble in water or can only swell.