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1、分类号一单位代码学密今级北京工业大学硕士学位论文题目乳液的复合改性研究英文并列题目研究生姓名专业环境工程研究方向应用化学精细化工导师姓名凌爱莲学衔职称教授论文报告提交日期四见乡幼且学位授予日期授予单位名称和地址北京工业大学硕士论文摘要摘要本文以高分子共混,理论为指导采用分子设计和粒子设计思想合成一系列不同软硬段结构的聚氨酷乳液和不同玻璃化温度、不同核壳结构的聚丙烯酸酷队乳液分别对共聚乳液进行共混改性,制得爪和共混乳液并采用无乳化剂补加的接枝聚合工艺,设计了系列单体配方对乳液进行接枝共聚改性,制得队复合
2、乳液。用透射电镜观察了共混乳液和接枝复合乳液乳胶粒的微观形态及其分布,并对它们的稳定性、胶膜的力学性能和耐水性进行了测试和分析。用示差扫描量热法对共混乳液和接枝复合乳液的相容性进行表征、、影响共混乳液体系稳定性的因素有乳胶粒的电性和粒径乳化剂乳液的值等,其中,乳液的值具有决定性的影响。队复合乳液的稳定‘‘性随接枝单体用量和软单体丙烯酸酉旨用量的增多而下降。共混乳液体系中,粒径较人的乳胶粒与、队共乳胶粒均能稳定地存于同一体系中,但共棍后各乳胶粒的粒径均有不同程度的增大,在乳胶粒表面吸附了较多的或队乳胶粒
3、。队复合乳液的乳胶粒粒径比共混乳液乳胶粒粒径增长幅度更大。影响共混乳液体系胶膜性能的因素土要有、共混乳液体系中配方中的软段与硬段比例和与的摩尔比总值、爪共混乳液体系中队配方中的及其聚合工艺、、队乳液在共混乳液中所占的比例。与乳液相比,用、共混乳液的胶膜的拉伸强、对木块木块和,而度用的粘接强度都有了不同程度的提高的改性效果更显著。影响接枝复合乳液体系胶膜性能的因素有所设计单体共聚物的和单体的用量。各共混体系在一定组成时均呈现部分相容。采用分子设计和粒子设计改善队与的相容性有利于提高改性效果。接枝复合乳液
4、中与队的相容性比共混体系有了较大提高。关键词乳液乳液队乳液共混改性接枝改性户北京工业大学硕士论文人,切,,,叹吧一,,一一一,,·俪,,,,爪讹众州一今北京工业大学硕士论文目录目录第一部分引言····························,········································⋯⋯一、研究目的和意义·························································⋯⋯二、共聚物的制备方法及结构特点与性能
5、······················,·⋯三、国内外乳液生产和研究基本情况·································⋯⋯四、孚液的改性················································⋯⋯五、国内乳液存在的问题及发展趋势···························⋯⋯六、选题目的和意义······················································⋯⋯第二部分聚合物改性原
6、理······················································⋯⋯一、聚合物乳液共混原理················································⋯⋯、···················································二接枝共聚改性原理⋯⋯第三部分实验部分·······························································⋯
7、⋯一、原料········································································⋯⋯二、实验仪器··································································⋯⋯三、试验配方设计与计算···················································⋯⋯四、乳液的制备·····························
8、···································,·⋯五、性能与测试······························································⋯⋯第四部分结果与讨论······················································⋯⋯·······················································
