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Facile fabrication of robust superhydrophobic surfaces: comparative investigation

机译:坚固的超疏水表面的舒适制造:比较调查

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Superhydrophobic (SH) surfaces have various unique and important properties, including extreme water-repellency, self-cleaning, anti-icing and cell repellency. The range of applications and the interest in these surfaces have increased enormously during the last years. To obtain superhydrophobicity a surface requires both micro- and nano-scale roughness and a low surface energy coating. During the last 15 years many methods have been published to produce SH surfaces. Most of the methods described in the literature require multiple steps and harsh conditions. In addition, the comparability of the distinct studies is challenging, due to the fact that the produced surfaces were not characterized with sufficiently standardized parameters and methods. A comparative study with a wide space of parameters, characterizing both the method and the surface properties, could be helpful to find the right functionalization method for a certain application. The goal of this study was to compare the most facile methods for the fabrication of superhydrophobic surfaces. We selected eight coating methods and characterized produced surfaces in respect of water contact angles (WCAs) (static, advancing, receding), sliding angle, mechanical stability, stability in water/buffer/solvent, transparency and micro/nano surface topography.
机译:超疏水(SH)表面具有各种独特和重要的特性,包括极端防水性,自清洁,防冰和细胞排斥性。在过去几年中,应用范围和对这些表面的兴趣产生了极大的增加。为了获得超疏水性,表面需要微型和纳米级粗糙度和低表面能涂层。在过去15年中,已发布许多方法以生产SH曲面。文献中描述的大多数方法需要多个步骤和恶劣的条件。此外,由于产生的表面没有具有足够标准化的参数和方法,因此不同研究的可比性是具有挑战性的。具有宽空间的比较研究,表征方法和表面属性,可以有助于找到某些应用程序的右函数化方法。本研究的目标是比较最容易制备超疏水表面的方法。我们选择了八种涂布方法,并表征了水接触角(WCA)(静态,推进,后退),滑动角度,机械稳定性,水/缓冲/溶剂,透明度和微/纳米表面形貌的稳定性的产生表面。

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