离子示踪法对微胶囊化方法的研究  

Investigation of Microencapsulation by ionic trace Technique

作　　者：白光月[1] 刘持标[1] 王玉洁[1] 马占芳[1] 孙闻东[1] 吴子生[1] 张河哲 

机构地区：[1]东北师范大学化学系,中国科学院长春应用化学研究所

出　　处：《东北师大学报（自然科学版）》1994年第2期117-119,126,共4页Journal of Northeast Normal University(Natural Science Edition)

基　　金：国家自然科学基金

摘　　要：详述了液中干燥法胶囊化的操作过程。用Ｃｒ２Ｏ作芯材，通过测定干燥过程中Ｃｒ２Ｏ的释放，研究了芯材损失的具体过程。结果表明芯材损失是由Ｗ／Ｏ乳状液在干燥浴中快速分散时破裂和干燥过程中的破裂所引起的。选择适当的实验条件，芯材的包埋率可以达到９０％以上。Details the microencapsulation procedure by drying method in liquid. The practical process of the core material release was investigated by measuring the release ratio of Cr_2O_7￣(2-) in core material during the drying process. The results shows that the release of core material is caused by breakup of W/O in process of rapid dispersion in drying liquid and W/O/W during the drying process. Under proper experimental conditions,the microencapsulated ratio of the core material can be above 90%

关 键 词：微胶囊 离子示踪法 乙基纤维素 

分 类 号：TQ929[轻工技术与工程—发酵工程]