摘要
用复合凝聚法制备了包覆红白电泳显示液的明胶-羧甲基纤维素(CMC)电子墨水微胶囊。考察了壁材用量、十二烷基硫酸钠(SDS)用量、反应温度、搅拌速度对微胶囊粒径的分布及其形貌的影响。实验结果表明,在明胶与羧甲基纤维素的体积比为5∶1,SDS用量为1.3～1.7g/L,反应温度为40℃,搅拌速度为600～800r/min,pH值为3.5～3.8的条件下可以制得具有透明囊壁且粒度分布较均匀的微胶囊。微胶囊中的粒子在直流电场作用下发生移动,响应时间为14s。
Functional gelatin-carboxymethyl cellulose （CMC） microcapsules containing a red/white electrophoretic suspension have been prepared using a complex coacervation method. The optimized experimental conditions were identified. The results showed when the volume ratio of gelatin and CMC was 5 ： 1, the amount of surfactant sodium dodecyl sulfate （SDS） was 1.3 - 1.7 g/L, the reaction temperature was 40℃, the stirring speed was 600 - 800 r/min, and the pH was 3.5 - 3.8, narrow size distributions of microcapsules with transparent surfaces were obtained. Such microcapsules containing the red/white suspension showed a response time of 14 s in electrophoretic displays with a direct current electric field.
出处
《北京化工大学学报（自然科学版）》
CAS
CSCD
北大核心
2009年第4期25-28,共4页
Journal of Beijing University of Chemical Technology(Natural Science Edition)
基金
国家"863"计划(2008AA03A332)
国家自然科学基金(20821004)
关键词
电子显示
微胶囊
表面活性剂
electronic displays
microcapsules
surfactant
