Magnetic fluid based on mussel inspired chemistry as corrosion-resistant coating of NdFeB magnetic material
文献类型：期刊论文
| 作者 | Ouyang, Yibo1,2; Qiu, Ri1; Xiao, Yamei3; Shi, Zhiqiang2; Hu, Shugang4; Zhang, Yan4; Chen, Ming5; Wang, Peng6
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| 刊名 | CHEMICAL ENGINEERING JOURNAL
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| 出版日期 | 2019-07-15 |
| 卷号 | 368页码:331-339 |
| 关键词 | NdFeB Corrosion inhibition Magnetic fluid Dopamine Self-healing |
| ISSN号 | 1385-8947 |
| DOI | 10.1016/j.cej.2019.02.126 |
| 通讯作者 | Qiu, Ri(qiur@sunrui.net) |
| 英文摘要 | Finding durable coating onto NdFeB magnetic material is critical for its usage in harshly corrosive environment. In this report, to the best of our knowledge, magnetic fluid is proposed as the versatile coating to prohibit the corrosion of magnetic material for the first time. Mussel inspired chemistry for polydopamine coating and Michael reaction with addition of dodecanethiol lead to hydrophobic/superoleophilic nanostructured Fe3O4, which is utilized to prepare magnetic fluid. The spontaneous attraction force between NdFeB and magnetic fluid enables fluid as the coating to cover the magnet surface, showing exceptional inhibition effect to underneath metal. When immersed in 3.5 wt% NaCl solution for 30 days, corrosion current density of NdFeB covered with magnetic fluid is only 1.74x10(-3) mA/cm(2), which is approximately three orders of magnitude lower than that of bare NdFeB with corrosion current density 1.01 mA/cm(2). Even after exposure for 8 days in more severe condition acidic, salt spray environment, magnetic fluid achieves the corrosion current density of 1.31x10(-3) mA/cm(2) without the occurrence of corrosion. In contrast, thick rust layer has formed on bare NdFeB during the same exposure period. Moreover, magnetic fluid covering on NdFeB behaves excellent self-healing property. Even being abraded and cut for multiple times, magnetic fluid still performs prominent corrosion inhibition to NdFeB, illustrating exceptional resistance to external mechanical damage. |
| 资助项目 | National Natural Science Foundation of China[41576079] ; Qingdao National Laboratory for Marine Science and Technology[QNLM2016ORP0413] ; Natural Science Foundation of Shandong Province[ZR2017MF054] ; Shandong Provincial Education Association for International Exchanges |
| WOS研究方向 | Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000462769600031 |
| 出版者 | ELSEVIER SCIENCE SA |
| 源URL | [http://ir.qdio.ac.cn/handle/337002/154920]  |
| 专题 | 海洋研究所_海洋腐蚀与防护研究发展中心 |
| 通讯作者 | Qiu, Ri |
| 作者单位 | 1.Luoyang Ship Mat Res Inst, State Key Lab Marine Corros & Protect, Qingdao 266101, Shandong, Peoples R China 2.China Univ Petr Huadong, Sch Mat Sci & Engn, Qingdao 266580, Shandong, Peoples R China 3.Qingdao Binhai Univ, Sch Mech & Elect Engn, Qingdao 266555, Shandong, Peoples R China 4.Shandong Univ Sci & Technol, Coll Chem & Environm Engn, Qingdao 266590, Shandong, Peoples R China 5.Shandong Univ Sci & Technol, Coll Math & Syst Sci, Qingdao 266590, Shandong, Peoples R China 6.Chinese Acad Sci, Inst Oceanol, Key Lab Marine Environm Corros & Biofouling, Qingdao 266071, Shandong, Peoples R China |
| 推荐引用方式 GB/T 7714 | Ouyang, Yibo,Qiu, Ri,Xiao, Yamei,et al. Magnetic fluid based on mussel inspired chemistry as corrosion-resistant coating of NdFeB magnetic material[J]. CHEMICAL ENGINEERING JOURNAL,2019,368:331-339. |
| APA | Ouyang, Yibo.,Qiu, Ri.,Xiao, Yamei.,Shi, Zhiqiang.,Hu, Shugang.,...&Wang, Peng.(2019).Magnetic fluid based on mussel inspired chemistry as corrosion-resistant coating of NdFeB magnetic material.CHEMICAL ENGINEERING JOURNAL,368,331-339. |
| MLA | Ouyang, Yibo,et al."Magnetic fluid based on mussel inspired chemistry as corrosion-resistant coating of NdFeB magnetic material".CHEMICAL ENGINEERING JOURNAL 368(2019):331-339. |
入库方式： OAI收割
来源：海洋研究所
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