自交联丙烯酸酯共聚物乳液的合成与性能研究  

Synthesis and Properties of Self-crosslinking Acrylic Copolymer Latexes

作　　者：王艺峰[1] 蒋颜平[1] 姚祥雨[1] 陈艳军[1] 

机构地区：[1]武汉理工大学材料科学与工程学院,武汉430070

出　　处：《武汉理工大学学报》2010年第21期5-8,共4页Journal of Wuhan University of Technology

基　　金：国家自然科学基金(50803048)

摘　　要：通过种子乳液聚合法,合成了带功能性单体双丙酮丙烯酰胺(DAAM)的自交联丙烯酸酯共聚物乳液,探讨了不同的DAAM用量对乳液和乳胶膜性能的影响,并对不同交联剂己二酰肼(ADH)、丙烯酰胺(AM)以及己二酰肼和N-羟甲基丙烯酰胺(ADH+NMA)进行了研究。通过透射电镜(TEM)、差示扫描量热法(DSC)、力学性能和耐溶剂性能测试等方法研究了乳液和乳胶膜的性能。结果表明,自交联反应提高了聚合物的耐溶剂能力、玻璃化温度(Tg)和力学性能;当DAAM用量为4%时得到的丙烯酸酯共聚物乳液综合性能较好;此外,使用ADH+NMA交联体系制备的乳胶膜性能较好。The sef-crosslinking acrylic copolymer latexes contained functional monomer DAAM were prepared by seeded emulsion polymerization method.The effects of the amount of the functional monomer DAAM,and different crosslinking agents（ADH,AM,ADH and NMA） on the properties of the acrylic copolymer latexes and films were studied.The properties of the acrylic copolymer latexes and films were characterized by TEM,DSC,tensile testing and solvent resistance.The results show that the solvent resistance,mechanical properties and Tg are improved by sef-crosslinking reaction.The acrylic copolymer latexes and films with better integrative properties are obtained,when the amount of DAAM is 4%.Moreover,the latexes and films with better integrative properties are obtained,when the crosslinking agents is ADH and NMA.

关 键 词：水性涂料 丙烯酸酯共聚物乳液 自交联 双丙酮丙烯酰胺 

分 类 号：TQ201[化学工程—有机化工]