水力动力学合模拟非溶剂诱导相分离过程中指形孔形成的模拟
Xintao Deng1, Yingpeng Zhao1, Fuyuan Yang1
1State Key Laboratory of Automotive Safety and Energy, Tsinghua University, Beijing 100084, PR China.
Langmuir : the ACS journal of surfaces and colloids
|May 21, 2025
概括
这项研究开发了一种模型,以了解膜制造过程中类似手指的孔形成. 模拟准确地预测了孔隙演变和参数效应,推进了非溶剂诱导相分离 (NIPS) 膜设计.
科学领域:
- 材料科学 材料科学 材料科学
- 化学工程是化学工程的重要组成部分.
- 流体动力学 流体动力学
背景情况:
- 在非溶剂诱导相分离 (NIPS) 中,指状孔 (FP) 的形成对膜性能至关重要.
- 目前对FP启动和增长机制的理解是有限的,依赖于经验方法.
- 控制FP对于定制功能膜特性至关重要.
研究的目的:
- 开发一个模拟FP启动和NIPS膜生长的计算模型.
- 研究制造参数对FP形态学的影响.
- 为了验证与实验观测对比的模拟结果.
主要方法:
- 开发一个水力动力学合相场模型.
- 从密集的皮肤层模拟FP启动和并行生长.
- 模拟形态与不同参数条件下的光学观测的比较.
主要成果:
- 该模型成功地重现了FP启动和增长的过程.
- 模拟揭示了手指形态的演变.
- 该模型准确地反映了制造参数对FP形成的影响,与实验结果一致.
结论:
- 开发的模型提供了对NIPS中FP形成的机制性理解.
- 它为优化膜制造工艺提供了一个预测工具.
- 这种方法可以减少对膜设计的经验方法的依赖.
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