A bi-functional self-healing epoxy composite coating based on coordinated functionalized attapulgite/graphene oxide
文献类型：期刊论文
| 作者 | Ali, Mustehsin1,2; Shi, Hongwei1,2,3; Ahmed, Sharjeel1,2; Song, Yingwei1,2; Liu, Fuchun1,2,4; Han, En-Hou1,2,4; Iqbal, Sundas5 |
| 刊名 | APPLIED SURFACE SCIENCE
 |
| 出版日期 | 2024-12-21 |
| 卷号 | 677页码:13 |
| 关键词 | Functional Filler Compatibility Graphene Oxide Nano-Clay Self-healing Corrosion |
| ISSN号 | 0169-4332 |
| DOI | 10.1016/j.apsusc.2024.161015 |
| 通讯作者 | Shi, Hongwei(hwshi@imr.ac.cn) |
| 英文摘要 | Applications for graphene oxide (GO) in the field of corrosion protection will be severely constrained by the material's poor dispersion and compatibility with epoxy resins, as well as the absence of self-healing corrosion protection in GO-based epoxy coatings. In this work, we developed a bi-functional 2-mercaptobenzothiazole (MBT) inhibitor-encapsulating GO-based nanocomposite (GAM) with pH-responsive release by implanting attapulgite (ATP) nanorods on the surface of GO. Additionally, GO-based nanocomposite can form covalent connections with epoxy resins and be evenly distributed in epoxy film via a ring opening process. Moreover, improved epoxy film compatibility and dispersion result in elevated mechanical strength and better impermeability, which prevent corrosion in both the active and passive modes. The corrosion resistance of GAM selfhealing coating increased as the submersion period exceeded 24 h up to 0.54 M Omega cm2, resulting in the release of MBT inhibitor to form a passivation film at the defective region. Moreover, the improved charge transfer resistance (Rct) and the coating's resistance to corrosive species (Rc) attribute to the self-healing ability of the GAM coating. The incorporation of GAM (2 %) nanocomposites into epoxy films enables long-term protection of AA2024-T3 by combining passive and self-healing corrosion prevention. |
| 资助项目 | National Natural Science Foundation of China[52171089] ; National Natural Science Foundation of China[51571202] ; Key Program of Basic Research Projects of Liaoning Provincial Department of Education[JYTZD2023114] |
| WOS研究方向 | Chemistry ; Materials Science ; Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:001301537600001 |
| 出版者 | ELSEVIER |
| 资助机构 | National Natural Science Foundation of China ; Key Program of Basic Research Projects of Liaoning Provincial Department of Education |
| 源URL |  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Shi, Hongwei |
| 作者单位 | 1.Chinese Acad Sci, Inst Met Res, CAS Key Lab Nucl Mat & Safety Assessment, Shenyang 110016, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, Hefei 230026, Peoples R China 3.Shenyang Univ Technol, Sch Mat Sci & Engn, Shenyang 110870, Peoples R China 4.Inst Corros Sci & Technol, Guangzhou 510530, Peoples R China 5.Northwestern Polytech Univ, Ctr Nano Energy Mat, Sch Mat Sci & Engn, Xian 710072, Peoples R China |
| 推荐引用方式 GB/T 7714 | Ali, Mustehsin,Shi, Hongwei,Ahmed, Sharjeel,et al. A bi-functional self-healing epoxy composite coating based on coordinated functionalized attapulgite/graphene oxide[J]. APPLIED SURFACE SCIENCE,2024,677:13. |
| APA | Ali, Mustehsin.,Shi, Hongwei.,Ahmed, Sharjeel.,Song, Yingwei.,Liu, Fuchun.,...&Iqbal, Sundas.(2024).A bi-functional self-healing epoxy composite coating based on coordinated functionalized attapulgite/graphene oxide.APPLIED SURFACE SCIENCE,677,13. |
| MLA | Ali, Mustehsin,et al."A bi-functional self-healing epoxy composite coating based on coordinated functionalized attapulgite/graphene oxide".APPLIED SURFACE SCIENCE 677(2024):13. |
入库方式： OAI收割
来源：金属研究所
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