تقرير
Soft wetting with (a)symmetric Shuttleworth effect
| العنوان: | Soft wetting with (a)symmetric Shuttleworth effect |
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| المؤلفون: | Henkel, C., Essink, M. H., Hoang, Tuong, van Zwieten, G. J., van Brummelen, E. H., Thiele, U., Snoeijer, J. H. |
| المصدر: | Proc. R. Soc. A 478, 20220132 (2022) |
| سنة النشر: | 2022 |
| المجموعة: | Condensed Matter Nonlinear Sciences Physics (Other) |
| مصطلحات موضوعية: | Condensed Matter - Soft Condensed Matter, Nonlinear Sciences - Adaptation and Self-Organizing Systems, Physics - Chemical Physics, Physics - Fluid Dynamics |
| الوصف: | The wetting of soft polymer substrates brings in multiple complexities as compared to the wetting on rigid substrates. The contact angle of the liquid is no longer governed by Young's law, but is affected by the substrate's bulk and surface deformations. On top of that, elastic interfaces exhibit a surface energy that depends on how much they are stretched -- a feature known as the Shuttleworth effect (or as surface-elasticity). Here we present two models by which we explore the wetting of drops in the presence of a strong Shuttleworth effect. The first model is macroscopic in character and consistently accounts for large deformations via a neo-Hookean elasticity. The second model is based on a mesoscopic description of wetting, using a reduced description of the substrate's elasticity. While the second model is more empirical in terms of the elasticity, it enables a gradient dynamics formulation for soft wetting dynamics. We provide a detailed comparison between the equilibrium states predicted by the two models, from which we deduce robust features of soft wetting in the presence of a strong Shuttleworth effect. Specifically, we show that the (a)symmetry of the Shuttleworth effect between the "dry" and "wet" states governs horizontal deformations in the substrate. Our results are discussed in the light of recent experiments on the wettability of stretched substrates. |
| نوع الوثيقة: | Working Paper |
| DOI: | 10.1098/rspa.2022.0132 |
| URL الوصول: | http://arxiv.org/abs/2201.04228 |
| رقم الأكسشن: | edsarx.2201.04228 |
| قاعدة البيانات: | arXiv |
| DOI: | 10.1098/rspa.2022.0132 |
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