文档介绍：ater-borne Resin and Application
水性树脂及应用 W
多层核壳乳胶粒子的控制合成及其
成膜机理研究
□李效玉,穆元春,邱藤
(北京化工大学材料科学与工程学院,北京 100029)
摘要:首先采用多步法的聚合工艺,利用壳层交联乳液聚合的方法,制备出具有窄分布、多层核壳
结构形态的乳胶粒子。利用TEM、DLS对乳胶粒子进行分析,在TEM照片中,可以清晰地看出乳胶粒子
多层核壳结构;乳液粒子的核壳结构进一步被DLS数据所证实,即本乳胶粒子具有多层核壳结构;并且
由DLS分析得到乳胶粒子的直径与TEM照片中得到数据相符。利用Horus成膜仪对乳胶粒子成膜过程
进行全程监控,从而可以得到成膜助剂的最佳使用量。
关键词:核壳结构;种子乳液聚合;多层结构
中图分类号:TQ630 文献标识码:A 文章编号:1006-2556(2010)06-0028-04
Controlled Synthesis of Multilayer Core-shell Latex
Particle and the Study of Film Forming Mechanism
Li Xiaoyu, Mu Yuanchun,Qiuteng
(College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing 100029)
Abstract:Adopting multistep polymerization technology by the method of shell-layer cross-linking emulsion polymerization, we
have prepared latex particle with narrow distribution and multilayer core-shell structure. Analyzing the latex particle by TEM,
we can clearly see the multilayer structure in the TEM photo; and through further analysis by DLS, we can conﬁ rm the structure
of multilayer core-shell. Particle diameter obtained from DLS analysis is consistent with the diameter data from TEM photos.
Monitoring the overall ﬁ lm forming process by Horus ﬁ lm-forming apparatus, we have obtained the best amount of ﬁ lm-forming
agent.
Keywords: core-shell structure, seeded emulsion polymerization, multi-layer