摘要
以光活化杀虫剂2,5-二苯基噻吩为芯材,明胶、阿拉伯胶为壁材,采用复凝聚法制备2,5-二苯基噻吩微胶囊剂,研究并确定了微胶囊化的最佳工艺条件.结果表明:明胶、阿拉伯胶水溶液复凝聚反应时,控制pH=4.2,温度为45℃,搅拌速度为1 500r·min-1的条件,混合搅拌20min所制备的微胶囊药效最佳,平均粒径为4.92μm,包封率可达70.53%.
Abstract： 2,5- Diphenylthiophene microcapsule was prepared with gelatin and arabic gum as wall materials and 2,5 - diphenylthiophene as microcapsule core by complex coacervation method. The optimal preparation process condition was obtained by the experiment. The results indicate the opti- mal preparation process condition is： reaction temperature being 45 ℃, pH being 4.2, time for complex coacervation method being 20 rain and stirring revolutions being 1 500 r ·min-1. Uniform spherical microcapsules are thus obtained with an average particle size of 4.92μm. The encapsula- tion efficiency is up to 70.53 %.
出处
《扬州大学学报（自然科学版）》
CAS
北大核心
2014年第1期30-33,共4页
Journal of Yangzhou University：Natural Science Edition
基金
江苏省科技支撑计划项目(BE2012364)
全国大学生实践创新训练计划项目(20121117039)
江苏省大学生实践创新训练计划资助项目(2012JSSPITP1351)
扬州大学科技创新培育基金(2012CXJ065)
关键词
复凝聚法
2
5-二苯基噻吩
微胶囊剂
complex coacervation method, 2,5 - diphenylthiophene~ microcapsule
