目的 研究混合修饰构筑白铜超疏水表面的可行性及防腐性能。方法 以白铜为基体，采用简单的化学刻蚀法，以硝酸银溶液作为刻蚀液，经肉豆蔻酸和十二硫醇的混合乙醇溶液修饰来制备超疏水白铜。 采用接触角测量仪、XRD、FTIR、SEM、EDS 对超疏水白铜表面性能和结构等进行了表征，并利用 Tafel 曲线和电化学阻抗谱研究低表面能复合膜的耐蚀性能。结果 肉豆蔻酸和十二硫醇的疏水长链都组装到薄银层表面，其中肉豆蔻酸和薄银层的键合形式为双齿桥式复合模式，超疏水白铜表面形貌由微米级枝晶和纳米级乳突状结构组成，同时材料表面与水的接触角达到 157.4°，表现出超疏水水平。此外，制备的超疏水白铜表面具有良好的化学稳定性和耐腐蚀性能，在水、有机溶液、3.5%NaCl 溶液中分别浸泡 2 d，所有样品表面仍表现为超疏水水平。由 Tafel 极化曲线拟合参数计算可知，其缓蚀效率达到 83.9%。结论 以两种低表面能物质混合修饰来制备超疏水白铜表面的方法是可行且有效的，且该复合膜具有优良的耐腐蚀性能。

The work aims to study the feasibility and anticorrosin performance of building mixed-modified copper alloy super-hydrophobic surface. Copper alloy was used as matrix and a simple chemical etching method was adopted to prepare the super-hydrophobic copper alloy with silver nitrate solution as the etching solution in the ethanol solution mixed with myristic acid and n-dodecanethiol. The surface properties and structure of super-hydrophobic copper alloy were characterized by contact angle measuring instrument, XRD, FTIR, SEM and EDS and the corrosion resistance of low surface energy composite film was investigated by Tafel curve and electrochemical impedance spectroscopy. From the results, hydrophobic long chains of myristic acid and n-dodecanethiol were assembled on the surface of thin silver layer, in which the binding form of myristic acid and thin silver layer was double-dentate bridging compound mode. The surface morphology of super-hydrophobic copper alloy was composed of micron dendrites and nanoscale papillary structures. At the same time, the surface water contact angle of the material reached 157.4 degree super-hydrophobic level. In addition, the prepared super-hydrophobic copper alloy surface had good chemical stability and corrosion resistance. The surface of all samples still showed super-hydrophobic level after being immersed in water, organic solution, NaCl solution of 3.5wt.% for 2 d. According to the calculation of Tafel polarization curve fitting parameters, the corrosion inhibition efficiency reached 83.9%. It is feasible and effective to prepare super-hydrophobic copper alloy surface by mixing two kinds of low surface energy materials and the composite film has excellent corrosion resistance.