期刊
JOURNAL OF MEMBRANE SCIENCE
卷 409, 期 -, 页码 164-172出版社
ELSEVIER
DOI: 10.1016/j.memsci.2012.03.052
关键词
Thermally induced phase separation; Polymeric membrane; Dissipative particle dynamics; Binary diluent; Spinodal decomposition
资金
- National Basic Research Program of China (973 Program) [2009CB623401]
- National High Technology Research and Development Program of China (863 Program) [2009AA062901]
- Beijing Municipal Natural Science Foundation [2100001]
The effect of adding a second diluent on the membrane formation via thermally induced phase separation was investigated both by dissipative particle dynamics (DPD) simulation and experiment, taking into account the polypropylene/oleic acid system with neutral substrate on mesoscale. The simulations of the effect of primary/second diluent ratio on the membrane formation proved that adding a second diluent (poor diluent of the polymer) to a polymer/primary diluent (good diluent of the polymer) system would induce an L-L phase separation in which an S-L phase separation would occur. Moreover, the interaction parameter between the primary diluent and the second diluent had a significant influence on the phase separation and should be considered as a main factor for the second diluent selection. To verify the results obtained by simulations, experiments were conducted and the experiment conclusions were consistent with the simulation results. The information obtained from this study benefits to understand the membrane formation of polymer/mixed diluent system. (C) 2012 Elsevier B.V. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据