School of Chemical Engineering, University of Queensland, Brisbane, QLD 4072, Australia.
School of Chemical Engineering, University of Queensland, Brisbane, QLD 4072, Australia.
Adv Colloid Interface Sci. 2016 Feb;228:55-70. doi: 10.1016/j.cis.2015.11.009. Epub 2015 Dec 8.
This review focuses on the current knowledge regarding (i) the mechanisms governing foamability and foam stability, and (ii) models for the foam column kinetics. Although different length scales of foam structure, such as air-water interface and liquid film, have been studied to elucidate the mechanisms that control the foamability and foam stability, many questions remain unanswered. It is due to the collective effects of different mechanisms involved and the complicated structures of foam sub-structures such as foam films, Plateau borders and nodes, and foam networks like soft porous materials. The current knowledge of the effects of solid particles on liquid film stability and foam drainage is also discussed to highlight gaps in our present level of understanding foam systems with solid particles. We also critically review and summarize the models that describe macroscopic foam behaviors, such as equilibrium foam height, foam growth and collapse, within the context of the mechanisms involved.
本文综述了目前关于(i)泡沫形成和泡沫稳定性的控制机制,以及(ii)泡沫柱动力学模型的知识。尽管已经研究了不同的泡沫结构长度尺度,如气-水界面和液膜,以阐明控制泡沫形成和稳定性的机制,但仍有许多问题尚未得到解答。这是由于涉及的不同机制的集体效应以及泡沫亚结构的复杂结构,如泡沫膜、Plateau 边界和节点,以及类似于软多孔材料的泡沫网络。还讨论了固体颗粒对液膜稳定性和泡沫排水的影响的现有知识,以突出我们对含固体颗粒的泡沫体系的理解程度上的差距。我们还批判性地回顾和总结了描述宏观泡沫行为的模型,例如平衡泡沫高度、泡沫生长和破裂,以及涉及的机制。