In this paper, we fabricate a biomimetic superhydrophobic coating on an X90 pipeline steel substrate by electrodeposition of copper, hydrothermal treatment to form a copper oxide layer, and subsequent surface modification with Stearic Acid (SA). The coating exhibits static contact angles of water of 160° ± 3.1° in the air and 170.7° ± 2.5° in cyclopentane, indicating the strongly water-repelling nature of the coating. The morphologies of the cyclopentane hydrate formed on steel substrates with and without the superhydrophobic coating are investigated. The results show that the hydrate particle on the coating exhibits spherical morphology and herein the interfacial contact area and adhesion force to the solid surface can be essentially reduced. The adhesion force reduction may be resulted by the decrease in the contact area between the hydrate and the solid surface.

中文翻译：

---

低水合物附着力的生物启发型超疏水涂层，可减轻水合物

在本文中，我们通过对铜进行电沉积，水热处理以形成氧化铜层并随后使用硬脂酸（SA）进行表面修饰，在X90管线钢基材上制备仿生超疏水涂层。该涂层在空气中的水静态接触角为160°±3.1°，在环戊烷中的水的静态接触角为170.7°±2.5°，表明该涂层具有很强的拒水性。研究了在有和没有超疏水涂层的情况下在钢基材上形成的水合环戊烷的形貌。结果表明，涂​​层上的水合物颗粒表现出球形形态，并且在此界面接触面积和对固体表面的粘附力可以大大降低。