乙二醇/水混合物中硅油滴和气泡的润湿

IF 3.9 2区化学 Q2 CHEMISTRY, MULTIDISCIPLINARY

Langmuir Pub Date : 2025-03-01 DOI:10.1021/acs.langmuir.4c0381710.1021/acs.langmuir.4c03817

Philippe Kunemann, Mohammed Djamel Bendimerad, Thibault Ngadande Nerum, Olga Voytko, Manon Guyot and Laurent Vonna*,

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引用次数: 0

摘要

研究了停留在固体基片上的硅油滴与气泡在乙二醇/水二元混合物中的接触角随乙二醇浓度的变化规律。尽管两种体系的界面张力都有相似的降低，但观察到不同的润湿行为。气泡接触角随乙二醇浓度的增加而增加，而硅油液滴的反应则更为复杂，在低乙二醇浓度时接触角稳定，在高浓度时接触角增加。这表明，即使界面张力发生变化，液滴形态也能保持相对稳定。基于不平衡力的现象学描述强调了接触角在纯水环境中的关键作用，它可以预测表面活性剂或共溶剂进一步吸附降低界面张力后的润湿行为。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Wetting of Silicone Oil Drops and Air Bubbles in Ethylene Glycol/Water Mixtures

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Wetting of Silicone Oil Drops and Air Bubbles in Ethylene Glycol/Water Mixtures

Contact angles of silicone oil droplets and air bubbles settled on a solid substrate and confined in binary ethylene glycol/water mixtures were studied as a function of ethylene glycol concentration. Despite similar reductions in interfacial tensions for both systems, distinct wetting behaviors were observed. While the air bubble contact angle increased with ethylene glycol concentration, the silicone oil droplet exhibited a more complex response, characterized by a stable contact angle at low ethylene glycol concentrations followed by an increase at higher concentrations. This suggests that droplet morphology can remain relatively stable even as interfacial tensions change. A phenomenological description based on the imbalanced forces highlights the crucial role of the contact angle in pure water environment, in predicting the wetting behavior that may follow the reduction of interfacial tension by further surfactant or cosolvent adsorption.

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来源期刊

Langmuir 化学-材料科学：综合

CiteScore

6.50

自引率

10.30%

发文量

1464

审稿时长

2.1 months

期刊介绍： Langmuir is an interdisciplinary journal publishing articles in the following subject categories: Colloids: surfactants and self-assembly, dispersions, emulsions, foams Interfaces: adsorption, reactions, films, forces Biological Interfaces: biocolloids, biomolecular and biomimetic materials Materials: nano- and mesostructured materials, polymers, gels, liquid crystals Electrochemistry: interfacial charge transfer, charge transport, electrocatalysis, electrokinetic phenomena, bioelectrochemistry Devices and Applications: sensors, fluidics, patterning, catalysis, photonic crystals However, when high-impact, original work is submitted that does not fit within the above categories, decisions to accept or decline such papers will be based on one criteria: What Would Irving Do? Langmuir ranks #2 in citations out of 136 journals in the category of Physical Chemistry with 113,157 total citations. The journal received an Impact Factor of 4.384*. This journal is also indexed in the categories of Materials Science (ranked #1) and Multidisciplinary Chemistry (ranked #5).