自交联型聚氨酯-丙烯酸酯复合乳液的合成研究  

Study on Synthesis of Self-Crosslinking Polyurethane-Acrylate Hybrid Emulsion

作　　者：仇诗其[1] 张旭东[1] 廖阳飞[1] 郝新兵[1] 

机构地区：[1]湖南大学化学化工学院,长沙410082

出　　处：《现代涂料与涂装》2008年第1期5-9,共5页Modern Paint & Finishing

摘　　要：采用原位乳液聚合法,引入分子间交联的交联结构,制备了酮肼、环氧羧基双重自交联型聚氨酯-丙烯酸酯复合乳液,研究了交联基团对乳液及涂膜性能的影响。研究发现交联度的提高对于涂膜的硬度、耐水性、耐化学品性等有明显改进。By using the in -situ emulsion polymerization procedure and introducing the intermolecular crosslinking structure, the ketone - hydrazide and epoxy - carboxyl double self - crosslinking polyurethane - acrylate hybrid emulsion is prepared. The influences of the crosslinking function groups on the properties of emulsion and coatings thereof are studied. The resuhs show that the hardness,water resistance and chemical resistance of the film are improved evidently by enhancing the crosslinking density.

关 键 词：自交联 水性 聚氨酯 丙烯酸酯 复合乳液 

分 类 号：TQ633[化学工程—精细化工]