摘要
以双酚A型环氧树脂(E-51)和正丁基缩水甘油醚(BGE)混合物为囊芯,三聚氰胺-尿素-甲醛共缩聚树脂(MUF)为囊壁,采用原位聚合法,合成一种用于自修复材料的微胶囊,研究了阴离子、非离子和高分子等5种表面活性剂对MUF环氧树脂微胶囊的影响.采用光学显微镜(OM)表征微胶囊粒径大小及分布、表面形貌等性质,用圆环法测定表面活性剂溶液的表面张力和不同十二烷基苯磺酸钠(SDBS)浓度水溶液/环氧树脂的界面张力,探讨了表面活性剂种类和浓度对MUF环氧树脂微胶囊粒径和形成过程的影响.实验结果表明,SDBS有助于MUF环氧树脂微胶囊的形成,SDBS水溶液/环氧树脂的界面张力随着SDBS浓度的增加而减小,在SDBS质量分数为0.5%后趋于稳定;在该条件下形成的MUF环氧树脂微胶囊形态良好,分散均匀,无粘连现象.
Microcapsules have been synthesized by in-situ polymerization using melamine-urea-formaldehyde co-condensed resin(MUF) as shell material and modified epoxy as core material which consists of epoxy resin(E-51) and butyl glycidyl ether(BGE).The effects of different surfactants on the MUF encapsulated E-51 microcapsules,including anionic,cationic and macromolecular surfactants,were studied.The properties of microcapsules,including the surface morphology,the size and distribution were characterized using optica...
出处
《深圳大学学报（理工版）》
EI
CAS
北大核心
2008年第4期351-357,共7页
Journal of Shenzhen University(Science and Engineering)
基金
国家自然科学基金资助项目(50878131)
广东省自然科学基金资助项目(06028569)
