IOCAS-IR  > 海洋环境腐蚀与与生物污损重点实验室
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
Source PublicationCHEMICAL ENGINEERING JOURNAL
Volume332Pages:658-670
SubtypeArticle
AbstractIn 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.
KeywordSelf-healing Scanning Vibrating Electrode Technique Electrochemical Measurements Inhibitor Corrosion Protection
DOI10.1016/j.cej.2017.09.112
Indexed BySCI
Language英语
WOS IDWOS:000414913700071
Citation statistics
Cited Times:2[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Version出版稿
Identifierhttp://ir.qdio.ac.cn/handle/337002/143048
Collection海洋环境腐蚀与与生物污损重点实验室
实验海洋生物学重点实验室
Affiliation1.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
First Author AffilicationInstitute of Oceanology, Chinese Academy of Sciences
Recommended Citation
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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