mussel-inspired delivery system for enhancing self-healing property of epoxy coatings
文献类型：期刊论文
| 作者 | Cheng, Li; Liu, Chengbao; Wu, Hao; Zhao, Haichao; Mao, Feixiong; Wang, Liping |
| 刊名 | JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
 |
| 出版日期 | 2021 |
| 卷号 | 80 |
| 关键词 | MESOPOROUS SILICA NANOPARTICLES CORROSION PROTECTION SURFACE MODIFICATION RAMAN-SPECTROSCOPY COPPER CORROSION POLYDOPAMINE BENZOTRIAZOLE MICROCAPSULES INHIBITION METALS |
| 英文摘要 | Dopamine (DA), one type of mussel-inspired biological molecules with adhesive nature and corrosion inhibitor property, are often used to functionalize the surfaces of various materials. Herein, we report the application of polydopamine (PDA) microcapsules as novel nanocontainers for the purpose, loading corrosion inhibitor (benzotriazole) in its shell structure, and then were embedded into epoxy coatings to provide self-healing and anti-corrosion protection for carbon steel. Fast release of benzotriazole in acidic environment caused by local corrosion and the chelating effect of PDA-Fe3+ can synergistically promote the formation of protective film on bare steel surface, which endows coatings with self-healing functionality. Electrochemical impedance spectroscopy (EIS), local electrochemical impedance spectroscopy (LEIS), and spray tests were conducted to evaluate the active inhibition and corrosion resistance of the loaded coatings. The scratched coating with incorporation of nanocontainers presented better protection performance, exhibiting increased Ro (oxide layer resistance) and Rct (charge transfer resistance) during initial immersion periods. The EIS tests in long-term immersion were also performed to confirm the anti-corrosion effect of composited coatings. These results demonstrated that benzotriazole-decorated PDA capsules dramatically enhanced the self-healing properties and anti-corrosion performance of epoxy coatings with the synergistic help of PDA and benzotriazole. (C) 2021 Published by Elsevier Ltd on behalf of The editorial office of Journal of Materials Science & Technology. |
| 源URL | [http://ir.nimte.ac.cn/handle/174433/21698]  |
| 专题 | 中国科学院宁波材料技术与工程研究所 2021专题_期刊论文 |
| 作者单位 | 1.Mao, FX 2.Wang, LP (corresponding author), Chinese Acad Sci, Ningbo Inst Mat Technol & Engn, Zhejiang Key Lab Marine Mat & Protect Technol, Key Lab Marine Mat & Related Technol, Ningbo 315201, Peoples R China. |
| 推荐引用方式 GB/T 7714 | Cheng, Li,Liu, Chengbao,Wu, Hao,et al. mussel-inspired delivery system for enhancing self-healing property of epoxy coatings[J]. JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,2021,80. |
| APA | Cheng, Li,Liu, Chengbao,Wu, Hao,Zhao, Haichao,Mao, Feixiong,&Wang, Liping.(2021).mussel-inspired delivery system for enhancing self-healing property of epoxy coatings.JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,80. |
| MLA | Cheng, Li,et al."mussel-inspired delivery system for enhancing self-healing property of epoxy coatings".JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY 80(2021). |
入库方式： OAI收割
来源：宁波材料技术与工程研究所
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