Parametric Optimization of Inverse Trapezoid Oleophobic Surfaces
| Autor: | Peter Bøggild, Fridolin Okkels, Andrea Cavalli |
|---|---|
| Rok vydání: | 2012 |
| Předmět: |
Surface (mathematics)
Materials science Hydrostatic pressure Mathematical analysis Inverse Nanotechnology Surfaces and Interfaces Condensed Matter Physics Aspect ratio (image) Contact angle Robustness (computer science) Electrochemistry General Materials Science Shape optimization Spectroscopy Parametric statistics |
| Zdroj: | Langmuir. 28:17545-17551 |
| ISSN: | 1520-5827 0743-7463 |
| Popis: | In this paper, we introduce a comprehensive and versatile approach to the parametric shape optimization of oleophobic surfaces. We evaluate the performance of inverse trapezoid microstructures in terms of three objective parameters: apparent contact angle, maximum sustainable hydrostatic pressure, and mechanical robustness (Im, M.; Im, H:; Lee, J.H.; Yoon, J.B.; Choi, Y.K. A robust superhydrophobic and superoleophobic surface with inverse-trapezoidal microstructures on a large transparent flexible substrate. Soft Matter 2010, 6, 1401-1404; Im, M.; Im, H:; Lee, J.H.; Yoon, J.B.; Choi, Y.K. Analytical Modeling and Thermodynamic Analysis of Robust Superhydrophobic Surfaces with Inverse-Trapezoidal Microstructures. Langmuir 2010, 26, 17389-17397). We find that each of these parameters, if considered alone, would give trivial optima, while their interplay provides a well-defined optimal shape and aspect ratio. The inclusion of mechanical robustness in combination with conventional performance characteristics favors solutions relevant for practical applications, as mechanical stability is a critical issue not often addressed in idealized models. |
| Databáze: | OpenAIRE |
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