Preparation of waterborne dispersions of epoxy resin by the phase-inversion emulsification technique. 2. Theoretical consideration of the phase-inversion process
文献类型：期刊论文
| 作者 | Yang, ZZ; Xu, YZ; Zhao, DL; Xu, M |
| 刊名 | COLLOID AND POLYMER SCIENCE
 |
| 出版日期 | 2000-11-01 |
| 卷号 | 278期号:11页码:1103-1108 |
| 关键词 | Bisphenol a Epoxy Resin Waterborne Dispersions Phase-inversion Emulsification Physical Method Mechanism |
| ISSN号 | 0303-402X |
| 英文摘要 | A theoretical consideration of the phase-inversion technique to prepare waterborne particles based on the experimental facts of the phase inversion process given in part 1 of this series is presented. The deformation and breakup of the water droplets dispersed in an epoxy resin phase under shear action are analyzed in terms of microrheology. The interaction and coalescence dynamics among the water droplets stabilized by an interfacial layer formed by the emulsifier molecules are discussed in terms of Derjaguin-Landau-Verwey-Overbeek theory and effective collision theory, respectively. A criterion for the completion of phase-inversion is that the attraction among the water droplets exceeds the entropic repulsion. Thus, a physical model of phase-inversion is proposed to predict the effects of some control variables on the phase-inversion process as well as the structural features of the waterborne particles, by which the experimental results could be well interpreted. It is indicated that the achievement of phase inversion is determined by the dynamic coalescence among the water droplets before the phase-inversion point (PIP). If the dynamic coalescence among the water droplets is ignored, phase inversion is achieved completely and submicron-sized particles are prepared. In comparison, if the dynamic coalescence is significant, phase inversion is achieved incompletely and a large complex water-in-oil-in-water structure is prepared. In the case of complete phase inversion, it is shown that the size of the waterborne particles is comparable with the size of the water droplets before the PIP. |
| 语种 | 英语 |
| WOS记录号 | WOS:000165461000009 |
| 出版者 | SPRINGER-VERLAG |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/76015]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Yang, ZZ |
| 作者单位 | Chinese Acad Sci, Inst Chem, Ctr Mol Sci, State Key Lab Polymer Phys & Chem, Beijing 100080, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yang, ZZ,Xu, YZ,Zhao, DL,et al. Preparation of waterborne dispersions of epoxy resin by the phase-inversion emulsification technique. 2. Theoretical consideration of the phase-inversion process[J]. COLLOID AND POLYMER SCIENCE,2000,278(11):1103-1108. |
| APA | Yang, ZZ,Xu, YZ,Zhao, DL,&Xu, M.(2000).Preparation of waterborne dispersions of epoxy resin by the phase-inversion emulsification technique. 2. Theoretical consideration of the phase-inversion process.COLLOID AND POLYMER SCIENCE,278(11),1103-1108. |
| MLA | Yang, ZZ,et al."Preparation of waterborne dispersions of epoxy resin by the phase-inversion emulsification technique. 2. Theoretical consideration of the phase-inversion process".COLLOID AND POLYMER SCIENCE 278.11(2000):1103-1108. |
入库方式： OAI收割
来源：化学研究所
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