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首页> 外文期刊>Annual Review of Materials Research >Wetting and Dewetting of Complex Surface Geometries
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Wetting and Dewetting of Complex Surface Geometries

机译：复杂表面几何形状的润湿和反润湿

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摘要

Surfaces exhibiting complex topographies, such as those encountered in biology, give rise to an enormously rich variety of interfacial morphologies of a liquid to which they are exposed. In the present article, we elaborate on some basic mechanisms involved in the statics and dynamics of such morphologies, focusing on a few simple paradigm topographies. We demonstrate that different liquid interface morphologies on the same sample frequently coexist. To exemplify the impact of the dynamics on the final droplet morphology, we discuss the shape instability of filamentous liquid structures in wedge geometries. We finally show that some side effects that may dominate on a larger scale, such as contact line pinning and contact angle hysteresis, seem to play a minor role on the microscopic scale under study. This establishes the validity of simple theoretical concepts of wetting as a starting point for describing liquids at substrate surfaces of high complexity.
机译：表现出复杂形貌的表面（例如在生物学中遇到的那些形貌）会导致其所接触的液体的界面形态极为丰富。在本文中，我们详细介绍了涉及此类形态的静态和动态的一些基本机制，重点是一些简单的范例地形。我们证明了同一样品上不同的液体界面形态经常共存。为了说明动力学对最终液滴形态的影响，我们讨论了楔形几何形状中丝状液体结构的形状不稳定性。我们最终表明，某些可能在更大范围内占主导地位的副作用，例如接触线固定和接触角滞后现象，在所研究的微观规模上似乎起着较小的作用。这确立了简单的理论润湿概念作为描述高复杂度基材表面液体的起点的有效性。

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