Sarah J. Goodband
Development of a setup to characterize capillary liquid bridges between liquid infused surfaces
Goodband, Sarah J.; Kusumaatmaja, Halim; Voïtchovsky, Kislon
Authors
Halim Kusumaatmaja halim.kusumaatmaja@durham.ac.uk
Visiting Professor
Professor Kislon Voitchovsky kislon.voitchovsky@durham.ac.uk
Professor
Abstract
Capillary liquid bridges are ubiquitous in nature and are present in many industrial processes. In order to model their behavior, it is essential to develop suitable experimental tools that are able to characterize the bridges’ geometry and the associated capillary force they induce on the contacting surfaces. While many existing setups are capable of characterizing capillary bridges formed between conventional surfaces, quantitative measurements on smart surfaces such as liquid infused surfaces remain challenging. These surfaces typically exhibit weak contact line pinning and contact angle hysteresis, resulting in unusually small changes in the capillary force they exert upon extension or compression of the bridge. Although it is precisely these properties that drive the interest into liquid infused surfaces, they render experimental characterization challenging when compared to non-infused surfaces. Here, we tackle this issue by developing a relatively inexpensive setup capable of measuring capillary forces with sensitivity in the micronewton range while quantifying the bridge’s geometry. The setup is fully motorized and can vary the relative position of the contacting surfaces while maintaining synchronous force and geometry measurements. We also present a new analysis software developed to retrieve the relevant geometrical parameters of the bridge from optical observations while minimizing errors and noise. Using example surfaces, we demonstrate the setup’s capabilities, including for bridges between liquid infused surfaces.
Citation
Goodband, S. J., Kusumaatmaja, H., & Voïtchovsky, K. (2022). Development of a setup to characterize capillary liquid bridges between liquid infused surfaces. AIP Advances, 12(1), Article 015120. https://doi.org/10.1063/5.0072548
Journal Article Type | Article |
---|---|
Acceptance Date | Dec 13, 2021 |
Publication Date | 2022-01 |
Deposit Date | Feb 18, 2022 |
Publicly Available Date | Feb 18, 2022 |
Journal | AIP Advances |
Electronic ISSN | 2158-3226 |
Publisher | American Institute of Physics |
Peer Reviewed | Peer Reviewed |
Volume | 12 |
Issue | 1 |
Article Number | 015120 |
DOI | https://doi.org/10.1063/5.0072548 |
Public URL | https://durham-repository.worktribe.com/output/1216649 |
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Copyright Statement
All article content, except where otherwise noted, is licensed under a Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
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