聚乙烯醇树脂是聚醋酸乙烯树脂经醇解后生成的一种水溶性的结晶型聚合物,其性能与醇解度、含水量、聚合度有关。20世纪50年代,由日本K uraray公司首先开发生产,并应用于合成纤维的生产,这种纤维叫做维尼纶。到了20世纪70年代,该公司才把聚乙烯醇开始用于非纤维的应用。日本K ur Polyvinyl alcohol resin is a kind of water-soluble crystalline polymer produced by alcoholysis of polyvinyl acetate resin. Its properties are related to alcohol solubility, water content and degree of polymerization. In the 1950s, Krauray Co., Ltd. of Japan first developed and produced and applied to the production of synthetic fibers called vinylon. By the 1970s, the company began using polyvinyl alcohol for non-fiber applications. Japan K ur