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Accelerated self-healing performance of magnetic gradient coating
Wang, Wei1; Li, Weihua1,2; Fan, Weijie1,3; Zhang, Xiaoying1; Song, Liying1; Xiong, Chuansheng1; Gao, Xiang1; Liu, Xiaojie1,3
2018-01-15
发表期刊CHEMICAL ENGINEERING JOURNAL
卷号332页码:658-670
文章类型Article
摘要In this study, we present the novel self-healing magnetic microcapsule preparation of poly(urea-formaldehyde) embedded with benzotriazole (BTA) and magnetic multi-wall carbon nanotubes (MWCNTs) to accelerate the self-healing efficiency of the coating significantly. The BTA played a role of the corrosion inhibitor, while the magnetic MWCNTs served as a target for the formation process of self-healing magnetic gradient (SMG) coating. The magnetic microcapsules could be easily as well as rapidly migrated in the coating solution via an external magnetic field. The SMG coating not only shortened the migration route of the released BTA, but also accelerated quickly the formation of a passivation film, and the corrosion of the copper was hindered, after the coating was damaged mechanically. It was further demonstrated that initial self-healing efficiency of SMG coating was approximately 6.4 times more than that of self-healing coating without magnetism. The present work successfully demonstrated the accelerated self-healing activity of magnetic MWCNTs microcapsules in protecting copper surfaces. The outcomes might help to magnetize the material and guide future design of self-healing coating.
关键词Self-healing Scanning Vibrating Electrode Technique Electrochemical Measurements Inhibitor Corrosion Protection
DOI10.1016/j.cej.2017.09.112
收录类别SCI
语种英语
WOS记录号WOS:000414913700071
引用统计
文献类型期刊论文
版本出版稿
条目标识符http://ir.qdio.ac.cn/handle/337002/143048
专题海洋腐蚀与防护研究发展中心
实验海洋生物学重点实验室
作者单位1.Chinese Acad Sci, Inst Oceanol, Key Lab Marine Environm Corros & Biofouling, 7 Nanhai Rd, Qingdao 266071, Peoples R China
2.Qingdao Natl Lab Marine Sci & Technol, 1 Wenhai Rd, Qingdao 266237, Peoples R China
3.Univ Chinese Acad Sci, 19 Jia Yuquan Rd, Beijing 100039, Peoples R China
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GB/T 7714
Wang, Wei,Li, Weihua,Fan, Weijie,et al. Accelerated self-healing performance of magnetic gradient coating[J]. CHEMICAL ENGINEERING JOURNAL,2018,332:658-670.
APA Wang, Wei.,Li, Weihua.,Fan, Weijie.,Zhang, Xiaoying.,Song, Liying.,...&Liu, Xiaojie.(2018).Accelerated self-healing performance of magnetic gradient coating.CHEMICAL ENGINEERING JOURNAL,332,658-670.
MLA Wang, Wei,et al."Accelerated self-healing performance of magnetic gradient coating".CHEMICAL ENGINEERING JOURNAL 332(2018):658-670.
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