Self-healing protective coating with dual reversible bonds triggered by photothermal responsive Co9S8@Bi2S3 hollow core-shell nanofillers
文献类型：期刊论文
| 作者 | Kang, Qianqian1; Wang, Wei1; Wang, Tong1; Mao, Zhipeng1; Li, Wen1; Wang, Peng2 ; Chen, Shougang1
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| 刊名 | PROGRESS IN ORGANIC COATINGS
 |
| 出版日期 | 2023-12-01 |
| 卷号 | 185页码:15 |
| 关键词 | Hollow structure Photothermal response Disulfide bond Self-healing coating Corrosion protection |
| ISSN号 | 0300-9440 |
| DOI | 10.1016/j.porgcoat.2023.107891 |
| 通讯作者 | Wang, Wei(wangwei8038@ouc.edu.cn) ; Chen, Shougang(sgchen@ouc.edu.cn) |
| 英文摘要 | Herein, we develop a novel composite coating with excellent self-healing and anticorrosion properties activated by photothermal responsive hollow core-shell nanofillers. A photothermal heterojunction Co9S8@Bi2S3 was prepared and integrated into polyurethane containing disulfide bonds. It is found that the heterojunction has enhanced the light absorption capacity and has increased the number and lifetime of photogenerated electron hole pairs, making more photogenerated charges pass through the heterojunction interface by reducing interface transfer resistance and releasing heat as well. Under 808 nm near-infrared light irradiation, the photothermal effect of Co9S8@Bi2S3 can trigger the reconstruction of dynamic disulfide bonds and reversible hydrogen bonds simultaneously to heal coating scratches. The surface characterization and electrochemical test results manifest that the coating containing 2 wt% 10 %-Co9S8@Bi2S3 nanofillers displayed excellent self-healing and anticorrosive capabilities. The self-healing efficiency of nearly 90 % was achieved after five-time cutting-healing cycles on the coating. The protection performance of the initial immersion stage could be restored by nearly 100 % after five-time self-healing, and the low-frequency impedance modulus was above 108 & omega; cm2 even after 60 days of immersion. This work would provide a new tactic for developing multi-cycle self-healing coatings triggered by photothermal effects. |
| WOS关键词 | ANTICORROSION |
| 资助项目 | National Natural Science Foundation of China[42076039] ; Natural Science Foundation for Shandong Province[ZR2020ME016] ; Fundamental Research Funds for the Central Universities[202165004] |
| WOS研究方向 | Chemistry ; Materials Science |
| 语种 | 英语 |
| WOS记录号 | WOS:001067285900001 |
| 出版者 | ELSEVIER SCIENCE SA |
| 源URL | [http://ir.qdio.ac.cn/handle/337002/181826]  |
| 专题 | 海洋研究所_海洋腐蚀与防护研究发展中心 |
| 通讯作者 | Wang, Wei; Chen, Shougang |
| 作者单位 | 1.Ocean Univ China, Sch Mat Sci & Engn, Qingdao 266100, Peoples R China 2.Chinese Acad Sci, Inst Oceanol, Key Lab Marine Environm Corros & Biofouling, 7 Nanhai Rd, Qingdao 266071, Peoples R China |
| 推荐引用方式 GB/T 7714 | Kang, Qianqian,Wang, Wei,Wang, Tong,et al. Self-healing protective coating with dual reversible bonds triggered by photothermal responsive Co9S8@Bi2S3 hollow core-shell nanofillers[J]. PROGRESS IN ORGANIC COATINGS,2023,185:15. |
| APA | Kang, Qianqian.,Wang, Wei.,Wang, Tong.,Mao, Zhipeng.,Li, Wen.,...&Chen, Shougang.(2023).Self-healing protective coating with dual reversible bonds triggered by photothermal responsive Co9S8@Bi2S3 hollow core-shell nanofillers.PROGRESS IN ORGANIC COATINGS,185,15. |
| MLA | Kang, Qianqian,et al."Self-healing protective coating with dual reversible bonds triggered by photothermal responsive Co9S8@Bi2S3 hollow core-shell nanofillers".PROGRESS IN ORGANIC COATINGS 185(2023):15. |
入库方式： OAI收割
来源：海洋研究所
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