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Polydopamine functionalized graphitic carbon nitride nanosheets as acid stimuli-responsive nanocarrier of 2-mercaptobenzimidazole for intelligent anticorrosion coatings

文献类型：期刊论文

作者Liu, Qiang1,2; Li, Hao1,2; Kong, Ling3; Du, Yiming1,2; Da, Yunsheng1,2; Sun, Zhouping1,2; Dong, Yong1,2; Liu, Yanyan2; Tian, Xingyou2; Wang, Hua2
刊名PROGRESS IN ORGANIC COATINGS
出版日期2024-12-01
卷号197
关键词MBI-PDA@CN pH-triggered release Smart nanocarrier Self-healing Anticorrosion coating
ISSN号0300-9440
DOI10.1016/j.porgcoat.2024.108782
通讯作者Liu, Yanyan(liuyanyan@rntek.cas.cn) ; Wang, Hua(wanghua@issp.ac.cn)
英文摘要Waterborne epoxy (EP) is considered a promising environmentally friendly anticorrosive technology with extensive potential applications. However, its limited anticorrosive ability poses significant challenges in practical usage. In this study, we use dopamine (DA) polymerization to load 2-mercaptobenzimidazole (MBI) onto the surface of g-C3N4 (CN) nanosheets, resulting in the synthesis of MBI-PDA@g-C3N4 (MBI-PDA@CN) nanosheet composites. The MBI-PDA@CN composite exhibits favorable hydrophilicity and high loading capacity of 35.8 %, enabling the formation of compact bonding layer at the interface with the EP. Simultaneously, the MBI-PDA@CN nanosheets exhibit a fully lamellar structure, thereby effectively impeding the infiltration of corrosive agents. Electrochemical tests show that the coating resistance (Rp) of MBI-PDA@CN/EP coating (8.5 x 107 Omega cm2) exhibited a significantly higher magnitude compared to that of the EP (2.6 x 106 Omega cm2) after being immersed in 3.5 wt% NaCl solution for 30 days. It is worth mentioning that the MBI-PDA@CN nanosheets possess the capability to gradually release MBI-PDA molecules in acidic environments. Given that MBI and PDA function as outstanding metal corrosion inhibitors, they substantially augment the corrosion resistance of the coating in acidic conditions. This study presents an intriguing approach to fabricating robust corrosion-resistant composite coatings.
WOS关键词ORGANIC FRAMEWORK ; GRAPHENE OXIDE ; PERFORMANCE ; HYBRID
资助项目Key Deployment Project of the Chinese Academy of Sciences[KFZD-SW-416]
WOS研究方向Chemistry ; Materials Science
语种英语
WOS记录号WOS:001308509400001
出版者ELSEVIER SCIENCE SA
资助机构Key Deployment Project of the Chinese Academy of Sciences
源URL[http://ir.hfcas.ac.cn:8080/handle/334002/135146]  
专题中国科学院合肥物质科学研究院
通讯作者Liu, Yanyan; Wang, Hua
作者单位1.Univ Sci & Technol China, Hefei 230026, Peoples R China
2.Chinese Acad Sci, Inst Solid State Phys, Hefei Inst Phys Sci, Hefei 230031, Peoples R China
3.Chinese Acad Sci, Inst Plasma Phys, Hefei Inst Phys Sci, Hefei 230031, Peoples R China
推荐引用方式
GB/T 7714		 Liu, Qiang,Li, Hao,Kong, Ling,et al. Polydopamine functionalized graphitic carbon nitride nanosheets as acid stimuli-responsive nanocarrier of 2-mercaptobenzimidazole for intelligent anticorrosion coatings[J]. PROGRESS IN ORGANIC COATINGS,2024,197.
APA Liu, Qiang.,Li, Hao.,Kong, Ling.,Du, Yiming.,Da, Yunsheng.,...&Wang, Hua.(2024).Polydopamine functionalized graphitic carbon nitride nanosheets as acid stimuli-responsive nanocarrier of 2-mercaptobenzimidazole for intelligent anticorrosion coatings.PROGRESS IN ORGANIC COATINGS,197.
MLA Liu, Qiang,et al."Polydopamine functionalized graphitic carbon nitride nanosheets as acid stimuli-responsive nanocarrier of 2-mercaptobenzimidazole for intelligent anticorrosion coatings".PROGRESS IN ORGANIC COATINGS 197(2024).

入库方式： OAI收割

来源：合肥物质科学研究院

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