Wetting study of patterned surfaces for superhydrophobicity
Wetting study of patterned surfaces for superhydrophobicity
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DOI：
10.1016/j.ultramic.2007.05.002
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发表时间：
2007-10-01
期刊：
影响因子：
2.2
通讯作者：
Jung, Yong Chae
中科院分区：
文献类型：
--
作者：
Bhushan, Bharat;Jung, Yong Chae
超疏水表面由于其极端的防水性能而在各种应用中具有相当大的技术潜力。已经进行了大量的研究，以产生人工仿生粗糙度诱导的疏水表面。一般来说，在所生产的表面上均质和复合界面都是可能的。硅表面图案化的两个不同的直径和高度的支柱与不同的间距值制造。我们展示了静态接触角如何随图案化硅表面上的不同间距值而变化。基于实验数据和数值模型，解释了趋势。我们发现，超疏水表面具有低滞后和倾斜角。摩擦学性能在许多需要防水性能的应用中起着重要作用。因此，研究这些模拟自然的表面的粘附和摩擦特性是很重要的。原子/摩擦力显微镜（AFM/FFM）用于表面表征和附着力和摩擦测量。(c)2007 Elsevier B. V.保留所有权利。
Superhydrophobic surfaces have considerable technological potential for various applications due to their extreme water-repellent properties. A number of studies have been carried out to produce artificial biomimetic roughness-induced hydrophobic surfaces. In general, both homogeneous and composite interfaces are possible on the produced surface. Silicon surfaces patterned with pillars of two different diameters and heights with varying pitch values were fabricated. We show how static contact angles vary with different pitch values on the patterned silicon surfaces. Based on the experimental data and a numerical model, the trends are explained. We show that superhydrophobic surfaces have low hysteresis and tilt angle. Tribological properties play an important role in many applications requiring water-repellent properties. Therefore, it is important to study the adhesion and friction properties of these surfaces that mimic nature. An atomic/friction force microscope (AFM/FFM) is used for surface characterization and adhesion and friction measurements. (c) 2007 Elsevier B.V. All rights reserved.