The present research work is focused on to fabricate and examine the characteristics of a superhydrophobic surface on copper (Cu) substrates by dip coating method. Three different samples of ‘Cu’ are set with chemical etching, mechanical rubbing and the combination of above two methods. The variations in the exteriorsurface morphologies have been examined by profilometer, scanning electron microscope and energy-dispersive X-ray spectroscopy. The adapted samples are immersed in a solution of silver nitrate follow by immersing in a combination of ethanol and perflurodecyltriethoxysilane for 10 min. The presence of leaf and dendrites assemblies have been observed on the surface, which are useful to trap the air between them and the entrapment allows water to roll off from the surface. The outcomes reveal that the modified substrates have a water contact angle (WCA) of 159° in the case of ‘Cu’ using combination of chemical etching and mechanical rubbing followed by immersion coating. The proposed methodology has the advantage of size compatibility and easy scale up for the development of superhydrophobic surface on copper in a cost and time effective manner.

中文翻译：

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浸涂法制备超疏水表面

目前的研究工作集中在通过浸涂法在铜（Cu）基板上制造和检查超疏水表面的特性。通过化学蚀刻，机械摩擦以及上述两种方法的组合设置三种不同的“铜”样品。外表面形貌的变化已经通过轮廓仪，扫描电子显微镜和能量色散X射线光谱法进行了检查。将适应的样品浸入硝酸银溶液中，然后浸入乙醇和全氟癸基三乙氧基硅烷的混合物中10分钟。已经在表面上观察到了叶片和树枝状组件的存在，这有助于将它们捕获在它们之间的空气中，并且截留物允许水从表面滚落下来。结果表明，在“铜”的情况下，通过化学蚀刻和机械摩擦相结合，然后浸入涂层，改性基材的水接触角（WCA）为159°。所提出的方法具有尺寸兼容的优点，并且易于以成本和时间有效的方式放大用于铜上超疏水表面的开发。