Inspired by mussel adhesive protein, the uniform, compact, and superhydrophobic film was constructed on the 316L stainless steel (316L SS) using self-polymerization of dopamine (DA) and further functionalization of the resulting polydopamine film with 1H,1H,2H,2H-perfluorodecanethiol (PFDT) to form a thin fluorinated polydopamine (fPDA) coating. Electrochemical analysis revealed that the superhydrophobic fPDA coating has an outstanding potential, lower corrosion current density, and higher coating resistance to protect 316L SS against corrosion in a 3 wt pct NaCl environment. Characterization of the corrosion attack by scanning vibrating electrode technology (SVET) reveals the cooperative effects of superhydrophobicity and strong adhesive ability of the fPDA coating on the highly anticorrosion capability of 316L SS in a 3 wt pct NaCl aqueous solution.

中文翻译：

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贻贝启发的具有增强耐腐蚀性的316L不锈钢上的超疏水表面

受到贻贝粘附蛋白的启发，使用多巴胺（DA）的自聚合作用，并用1H，1H，2H，2H进一步官能化所得聚多巴胺薄膜，在316L不锈钢（316L SS）上构造均匀，致密且超疏水的薄膜-全氟癸烷硫醇（PFDT）形成薄的氟化聚多巴胺（f PDA）涂层。电化学分析表明，超疏水性f PDA涂层具有出色的电势，更低的腐蚀电流密度和更高的涂层电阻，可保护316L SS在3 wt％的NaCl环境中免受腐蚀。通过扫描振动电极技术（SVET）表征腐蚀侵蚀，揭示了超疏水性和强附着力的协同作用。f PDA涂层在3 wt％的NaCl水溶液中具有316L SS的高度防腐能力。