Preparation and Properties of Modified Water-Resistant Films of PVA
Preparation and Properties of Modified Water-Resistant Films of PVA
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发表时间：
2009
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通讯作者：
Yang Dongzhi
中科院分区：
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作者：
Yang Dongzhi
采用交联法对聚乙烯醇（PVA）进行改性，以提高涂膜的耐水性。研究了改性PVA的含量、工艺条件以及涂膜的吸水率、结晶度、伸长率和拉伸强度等性能。结果表明，与纯PVA相比，改性PVA涂膜的耐水性明显提高。最后，对改性PVA涂膜的耐水性进行了研究。研究了增塑剂对薄膜拉伸强度和伸长率的影响。
PVA was modified by cross-linking method to improve the water-resistant of the films.The contents,technology conditions and the properties,such as water absorption,crystallization,elongation rate and tensile strength of the films were studied.The results indicated that compared with the pure PVA films,the water resistance of the modified films was markedly increased.At last,the impact of plasticizer to the elongation rate and tensile strength of films was also studied.