液体泡沫:多孔结构中泡沫位移的基础、流变学和应用

IF 7.9 2区 化学 Q1 CHEMISTRY, PHYSICAL Current Opinion in Colloid & Interface Science Pub Date : 2024-08-08 DOI:10.1016/j.cocis.2024.101845
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引用次数: 0

摘要

液体泡沫是一种胶体系统,由分散在连续液体介质中的气相组成,具有独特的结构和流变特性,有利于各种工业和环境应用。本综述综合了当前有关液态泡沫的基本原理、稳定机制和实际应用的知识。我们首先讨论了泡沫结构,从球泡沫到湿泡沫和干泡沫的过渡,这受到液体组分和表面活性剂存在的影响,而液体组分和表面活性剂的存在也会影响泡沫的机械和稳定性能。我们进一步描述了泡沫的生成(对于封闭泡沫)、稳定和衰减机制,强调了泡沫形成过程中的断裂、薄片分裂和残留作用,以及粗化、重力排水和塌陷对泡沫稳定性的不利影响。此外,综述还涉及泡沫在剪切应力作用下的流变行为,说明了泡沫复杂的粘弹性或粘塑性。最后,我们回顾了近期利用海尔-肖细胞和微流体技术对多孔结构中的泡沫注入和位移进行的研究。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

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Liquid foam: Fundamentals, rheology, and applications of foam displacement in porous structures

Liquid foams, as colloidal systems comprising a dispersed gas phase within a continuous liquid medium, exhibit unique structural and rheological properties beneficial for various industrial and environmental applications. This review synthesizes current knowledge on the fundamentals, stability mechanisms, and practical applications of liquid foams. We first discuss foam structures, transitioning from ball to wet and dry foams, influenced by the liquid fraction and surfactant presence, which also influence the foam’s mechanical and stability properties. We further describe the mechanisms of foam generation (for confined foams), stability, and decay, highlighting the roles of snap-off, lamellae division, and leave-behind in foam formation and the adverse effects of coarsening, gravity drainage, and collapse on foam stability. Additionally, the review covers the rheological behavior of foams under shear stress, illustrating their complex viscoelastic or viscoplastic nature. Finally, we review recent studies of foam injection and displacement in porous structures, utilizing Hele–Shaw cells and microfluidics.

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来源期刊
CiteScore
16.50
自引率
1.10%
发文量
74
审稿时长
11.3 weeks
期刊介绍: Current Opinion in Colloid and Interface Science (COCIS) is an international journal that focuses on the molecular and nanoscopic aspects of colloidal systems and interfaces in various scientific and technological fields. These include materials science, biologically-relevant systems, energy and environmental technologies, and industrial applications. Unlike primary journals, COCIS primarily serves as a guide for researchers, helping them navigate through the vast landscape of recently published literature. It critically analyzes the state of the art, identifies bottlenecks and unsolved issues, and proposes future developments. Moreover, COCIS emphasizes certain areas and papers that are considered particularly interesting and significant by the Editors and Section Editors. Its goal is to provide valuable insights and updates to the research community in these specialized areas.
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