Application of hierarchical bonds for construction an anti-corrosion coating with superior intrinsic self-healing function

被引：19
作者：
Li, Yuqing [1 ,2 ]
Zhang, Daquan [1 ,2 ]
Li, Jin [1 ,2 ]
Lu, Jiamin [1 ,2 ]
Zhang, Xinrui [1 ]
Gao, Lixin [2 ]
机构：
[1] Shanghai Univ Elect Power, Shanghai Key Lab Mat Protect & Adv Mat Elect Powe, Shanghai 200090, Peoples R China
[2] Shanghai Univ Elect Power, Shanghai Engn Res Ctr Energy Saving Heat Exchange, Shanghai 200090, Peoples R China
来源：
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS | 2022年 / 639卷
关键词：
Biomimetic; Corrosion; Functional; Self-healing; Coating; CORROSION; MICROCAPSULES; OIL;
D O I：
10.1016/j.colsurfa.2022.128388
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
An anti-corrosion coating is prepared by reaction of alpha-lipoic acid (ALA) with di-isopropenyl benzene (DB), followed by the addition of Cu2+ ions. This coating can heal its scratching within 2 h in air and 12 h in solution without external intervention. The corrosion inhibition effect of the DB-ALA-Cu2+ coating was demonstrated by electrochemical measurements. It shows excellent performance against copper corrosion in 3 wt% NaCl solution. The self-healing mechanism is attributed to the formation and exchange of hierarchical non-covalent and covalent bonds. This coating extends significantly its service life and has potential applications in the metal anticorrosion area.
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页数：9
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