RHEOLOGICAL BEHAVIOR OF EPOXY RESIN WATERBORNE DISPERSIONS

作     者：Zhen-zhong Yang Yuan-ze Xu De-lu Zhao State Key Laboratory of Polymer Physics & Chemistry, Center for Molecular Science Institute of Chemistry, Chinese Academy of Sciences, Beijing 100080 China 

作者机构：中科院化学所 高分子物理与化学国家重点实验室 北京 

出 版 物：《Chinese Journal of Polymer Science》 (高分子科学（英文版）)

年 卷 期：2001年第19卷第5期

页      面：471-476页

核心收录：

学科分类：08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 

基　　金：This work was supported by the National Natural Science Foundation of China (Grant No. 29774038)  and 973 project "Fundamental study on enhanced oil recovery" of the Ministry of China Science and Technology 

主　　题：epoxy resin waterborne dispersion rheological behavior cluster-cluster aggregation percolation transition 

摘      要：The waterborne dispersions of epoxy resin were prepared by the phase inversion emulsification technique. Rheological behavior and its relationship with the structural change of the systems were studied. It was shown that the concentrated dispersions were highly viscoelastic and pseudoplastic, which was attributed to the formation of a physical network among the waterborne particles via hydrogen bond. The dilute dispersions were Newtonian fluids. The discrete clusters composed of small waterborne particles were found in diluted dispersions. With increasing solid content, there existed a structural transition via percolation through a cluster-cluster aggregation mode to form the physical network, which was qualitatively evidenced by the TEM morphologies.