B10白铜表面超疏水膜的制备及其耐腐蚀性能研究

以B10白铜为基底，采用刻蚀、煅烧和表面改性的方法制备了超疏水膜，采用K100-MK2型张力仪测量超疏水膜的接触角，采用扫描电子显微镜观察超疏水膜的表面形貌，采用电化学工作站测试超疏水膜在3.5% NaCl（%表示质量分数）水溶液中的耐腐蚀性能。结果表明，刻蚀、煅烧后的B10白铜样品分别在溶液A中改性5 min、在溶液B中改性12 h后，得到的两种超疏水膜的接触角可分别达到153.2°和151.5°。将两种超疏水膜分别在3.5% NaCl水溶液中腐蚀10 d后，与裸B10白铜相比，仍表现出较好的耐腐蚀持久性。该方法为制备具有抗腐蚀和自清洁性能的超疏水表面提供了一条有效途径，可用于金属材料的表面改性。

Research on the Preparation and Corrosion Resistance of Superhydrophobic Film on B10 Cupronickel

Superhydrophobic films were prepared on B10 cupronickel substrate by etching, calcination and surface modification. The water contact angle of the superhydrophobic film was measured by K100-MK2 tensiometer, the superhydrophobic film morphology was observed by scanning electron microscope, and the superhydrophobic film'' corrosion performance in 3.5% NaCl (% represents mass fraction) aqueous solution was tested by electrochemical workstation. The results show that, B10 cupronickel samples after etching , calcining: the contact angles of the superhydrophobic film modified by solution A for 5 min can reach 153.2° and modified by solution B for 12 h can reach 151.5°, respectively. After corrosion in 3.5% NaCl aqueous solution for 10 days, the two superhydrophobic films still show better corrosion durability than that of bare B10 cupronickel. This method provides an effective way to prepare of superhydrophobic surfaces with corrosion resistance and self-cleaning properties, and can be used in the surface modification of metallic materials.