Efficient dual defense: PDA-Cu coating for simultaneous corrosion resistance and antibacterial protection of Mg alloys

被引:7
|
作者
Huang, Hao [1 ]
Hou, Lifeng [1 ,2 ]
Du, Huayun [1 ,2 ]
Wei, Huan [2 ]
Liu, Xiaoda [2 ]
Wang, Qian [1 ,2 ]
Wei, Yinghui [1 ,2 ]
机构
[1] Taiyuan Univ Technol, Coll Mat Sci & Engn, Taiyuan 030024, Shanxi, Peoples R China
[2] Corros & Protect Engn Technol Res Ctr Shanxi Prov, Taiyuan 030024, Shanxi, Peoples R China
基金
中国国家自然科学基金;
关键词
Mg; Composite coat; Corrosion; Antibacterial; IN-VITRO CORROSION; MAGNESIUM ALLOYS; POLYDOPAMINE COATINGS; BEHAVIOR; MICROSTRUCTURE; DEPOSITION; MECHANISM; LAYERS;
D O I
10.1016/j.corsci.2024.112103
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
The corrosion problem of Mg alloys remains a significant barrier to their technical applications. Particularly challenging is meeting specific functional requirements while enhancing corrosion resistance. Here, a novel metal organic composite coating (PDA-Cu) has been developed, exhibiting excellent corrosion resistance, strong bonding strength, and potent antibacterial properties. In 3.5 wt% NaCl solution, the corrosion rate of PDA-Cu alloy was significantly lower than that of bare Mg alloy, about 1/360; it had a strong inhibition rate (100%) and high binding strength (23.75 N). Importantly, the composite coating maintains consistency across various substrates and forms, proving its adaptability and expanding its potential applications.
引用
收藏
页数:10
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