核-壳结构阳离子丙烯酸树脂乳液的合成及性能  

Synthesis and Properties of Cationic Acrylic Resin Emulsion with Core-Shell Structure

作　　者：赵欣[1] 隋智慧[1] 宋旭梅[1] 张景彬[1] 强西怀[2] 

机构地区：[1]齐齐哈尔大学轻纺学院,黑龙江齐齐哈尔161006 [2]陕西科技大学资源与环境学院,陕西西安710021

出　　处：《中国皮革》2010年第7期15-18,共4页China Leather

基　　金：黑龙江省普通高等学校青年学术骨干支持计划项目(项目编号:1154G04)

摘　　要：以丙烯酸丁酯、甲基丙烯酸甲酯为核单体,丙烯酸丁酯、甲基丙烯酸甲酯、阳离子单体(自制)为壳单体,过硫酸钾为引发剂,采用种子聚合技术制备了具有核壳结构的阳离子丙烯酸树脂乳液,并对其结构进行了表征。FT-IR及1H-NMR表明阳离子丙烯酸树脂结构中不存在CC双键,说明各种单体相互之间发生了共聚合反应;DSC测试结果和TEM分析照片都显示出聚合产物粒子具有核-壳结构特征。皮革涂饰应用试验表明,阳离子丙烯酸树脂乳液用作皮革涂饰剂可改善涂层的性能,成革粒面细致清晰、手感舒适,涂层黏着力强,其耐干湿擦牢度可达4.5级以上。A type of cationic polyacrylate emulsion was prepared by means of seeding polymerization. The emulsion copolymerization was carried out with the core monomers of butyl acrylate （BA） and methyl methacrylate （MMA）, the shell monomers of BA, MMA and home - made cationic monomer and the initiator of potassium persulphate. The structure of cationic polyacrylate emulsion was characterized. No ＂C = C＂ was detected in the structure of cationic polyacrylate emulsion by FT - IR and 1H- NMR, indicating that the polymerization reaction was complete. DSC spectrum showed that there were two glass transition temperatur in the structure of cationic polymer. The core - shell structure of cationic polymer was confirmed by TEM. Many improvements on the coating properties emerged when cationic polymer was used as leather finishing agent. The resultant leathers have more uniform grain and better hand feeling. The coating has strong adhesion and its resistance to wet and dry rub fastness was up to 4.5.

关 键 词：阳离子丙烯酸树脂 核-壳聚合 皮革涂饰剂 乳液 

分 类 号：TS529.2[轻工技术与工程—皮革化学与工程]