DLVO理论
范德瓦尔斯力
粒子(生态学)
表面粗糙度
纳米
表面光洁度
曲面(拓扑)
缩放比例
统计物理学
颗粒沉积
材料科学
沉积(地质)
化学物理
经典力学
纳米技术
化学
物理
数学
几何学
物理化学
航程(航空)
胶体
复合材料
量子力学
分子
地质学
海洋学
古生物学
生物
沉积物
出处
期刊:Langmuir
[American Chemical Society]
日期:2021-11-03
卷期号:37 (45): 13208-13217
被引量:7
标识
DOI:10.1021/acs.langmuir.1c01492
摘要
The surface element integration (SEI) method is a computationally facile technique for calculating DLVO interactions between particles and surfaces. This method yields the exact total DLVO interaction between a particle and a flat surface; however, all surfaces have some degree roughness that profoundly affects the interaction. Previously, an ad hoc approximate method has been used to extend the SEI method to interactions between particles and surfaces with arbitrary morphology. Here we derive a more rigorous approximate method based on the fundamental scaling of DLVO interactions, which approaches the exact solution as the separation distance decreases regardless of the particle or surface morphology. We verify this method by comparison to the exact van der Waals energy when roughness is present on the particle and surface. The accuracy of this method at small separations makes it well-suited for the contexts of particle adhesion and deposition in which the length scale of interaction is on the order of angstroms and nanometers, respectively.
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