文献类型：期刊文献

英文题名：Effect of emulsifier on poly(urea-formaldehyde) microencapsulation of tetrachloroethylene

作者：Fan, Chuanjie[1];Zhou, Xiaodong[1]

机构：[1]E China Univ Sci & Technol, State Key Lab Chem Engn, Shanghai 200237, Peoples R China

年份：2011

卷号：67

期号：1

起止页码：15

外文期刊名：POLYMER BULLETIN

收录：;EI(收录号：20112414053471);WOS:【SCI-EXPANDED(收录号:WOS:000290686700002)】；

语种：英文

外文关键词：Microcapsule; Emulsifier; One-step

摘要：Microcapsules containing tetrachloroethylene as an internal phase were prepared by in situ polymerization of urea-formaldehyde (UF) without prepolymerization. The effects of different emulsifiers on the process of microencapsulation and morphology of microcapsules were investigated. The results show that the emulsifier gum arabic (GA) can effectively slow down the deposition rate of resin onto the oil/water interface, which can lead to smooth and compact surface of microcapsules. The surface activity of GA was also enhanced by complex formation of gum arabic and sodium dodecyl benzene sulfonate. The microcapsules represent good thermal and barrier property as a result of the formation of capsule wall with compact microstructure.