易凡丰,赵宝建,高尚平,袁才登

• 1:天津大学化工学院

摘要(Abstract)：

针对纸基包装材料防水阻隔性能亟待提升的问题，选用两种反应型乳化剂(SR-10、ER-10)和两种普通乳化剂(SDS、X-100)，通过调整阴离子与非离子乳化剂的比例进行复配，构建了不同的复合乳化剂体系。通过半连续乳液聚合法制备了苯乙烯-丙烯酸丁酯共聚物乳液，系统研究了复合乳化剂类型及阴/非离子乳化剂比例对乳液性质，以及涂覆于纸张后形成的聚合物乳胶膜防水阻隔性能的影响。结果表明，相较于普通乳化剂，使用反应型乳化剂制备的苯丙乳液乳胶粒粒径更小，成膜性更好，在纸张上形成的涂膜具有更优异的防水阻隔性能，且乳胶膜中乳化剂分子向水中的迁移量较低。当SR-10与ER-10的比例为1∶0且用量为单体用量的3%(质量分数)时，所得的苯丙乳液制备的涂布纸张防水阻隔性能最佳，其30 min阻水性能(Cobb)值为16.31g·m~(-2)，较未涂布纸张下降超过80%。

关键词(KeyWords)： 防水阻隔性能;乳液聚合;苯乙烯-丙烯酸丁酯;反应型乳化剂

Abstract:

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基金项目(Foundation):

作者(Author): 易凡丰,赵宝建,高尚平,袁才登

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