多层核壳乳胶粒子的控制合成及其成膜机理研究  

Controlled Synthesis of Multilayer Core-shell Latex Particle and the Study of Film Forming Mechanism

作　　者：李效玉[1] 穆元春[1] 邱藤[1] 

机构地区：[1]北京化工大学材料科学与工程学院,北京100029

出　　处：《中国涂料》2010年第6期28-30,57,共4页China Coatings

基　　金：国家自然科学基金资助项目(NSFCNo.50703002);北京化工大学研究生科研创新基金资助课题(No.09Ma007)

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。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 confirm the structure of multilayer core-shell. Particle diameter obtained from DLS analysis is consistent with the diameter data from TEM photos. Monitoring the overall film forming process by Horus film-forming apparatus,we have obtained the best amount of film-forming agent.

关 键 词：核壳结构 种子乳液聚合 多层结构 

分 类 号：TQ630[化学工程—精细化工]