Controlling the Formation of Capillary Bridges in Binary Liquid Mixtures

Schröter M, Gögelein C, Brinkmann M, Herminghaus S (2010)


Publication Language: English

Publication Status: Published

Publication Type: Journal article, Original article

Publication year: 2010

Journal

Publisher: American Chemical Society

Book Volume: 26

Pages Range: 17184-17189

Journal Issue: 22

DOI: 10.1021/la103062s

Abstract

We study the formation of capillary bridges between micrometer-sized glass spheres immersed in a binary liquid mixture using bright field and confocal microscopy. The bridges form upon heating due to the preferential wetting of the hydrophilic glass surface by the water-rich phase. If the system is cooled below the demixing temperature, the bridges disappear within a few seconds by intermolecular diffusion. Thus, this system oilers the opportunity to switch the bridges on and off and to tune precisely the bridge volume by altering the temperature in a convenient range. We measure the bridge geometry as a function or the temperature from bright field images and calculate the cohesive force. We discuss the influence of the solvent composition on the bridge formation temperature, the strength of the capillary force. and the bridge volume growth rate. Furthermore, we find that the onset of bridge formation coincides with the water-lutidine bulk coexistence curve.

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How to cite

APA:

Schröter, M., Gögelein, C., Brinkmann, M., & Herminghaus, S. (2010). Controlling the Formation of Capillary Bridges in Binary Liquid Mixtures. Langmuir, 26(22), 17184-17189. https://dx.doi.org/10.1021/la103062s

MLA:

Schröter, Matthias, et al. "Controlling the Formation of Capillary Bridges in Binary Liquid Mixtures." Langmuir 26.22 (2010): 17184-17189.

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