Developing wide pH-responsive, self-healing, and anti-corrosion epoxy composite coatings based on encapsulating oleic acid/ 2-mercaptobenzimidazole corrosion inhibitors in chitosan/poly(vinyl alcohol) core-shell nanofibers

doi:10.1016/j.porgcoat.2021.106454

CORC > 海洋研究所 > 中国科学院海洋研究所 > 海洋腐蚀与防护研究发展中心

	Developing wide pH-responsive, self-healing, and anti-corrosion epoxy composite coatings based on encapsulating oleic acid/ 2-mercaptobenzimidazole corrosion inhibitors in chitosan/poly(vinyl alcohol) core-shell nanofibers
	Ji, Xiaohong 2,4,5; Wang, Wei 3,5; Duan, Jizhou 2,4,5; Zhao, Xia 2,4,5; Wang, Lifei 2,4,5; Wang, Yanli 1; Zhou, Ziyang 2,4,5; Li, Weihua 1,2,4,5; Hou, Baorong 1,2,4,5
刊名	PROGRESS IN ORGANIC COATINGS
	2021-12-01
卷号	161 页码:13
关键词	pH-responsive Chitosan core-shell nanofibers Epoxy composite coatings Self-healing Synergistic effect
ISSN号	0300-9440
DOI	10.1016/j.porgcoat.2021.106454
通讯作者	Wang, Wei(wangwei8038@ouc.edu.cn) ; Duan, Jizhou(duanjz@qdio.ac.cn) ; Zhao, Xia(zx@qdio.ac.cn)
英文摘要	In this research, the oleic acid (OA) and 2-mercaptobenzimidazole (MBI) encapsulated in the chitosan/poly(vinyl alcohol) (CS/PVA) core-shell nanofibers are synthesized and used for developing core-shell/epoxy composite coatings on Q235 steel substrate to enhance the service-life of coating systems. The results indicate the successful preparation of the CS/PVA core-shell nanofibers loaded with corrosion inhibitors. The corrosion protection performance of the composite coatings are evaluated by electrochemical impedance spectroscopy, revealing that the maximum inhibition efficiency of OA and MBI is 96.66% and 99.36% after 10 and 20 days immersion in alkaline and acidic electrolyte, respectively. Furthermore, the formation of a self-healing film over the metallic substrate after immersion in corrosive electrolyte is confirmed. The synergistic effect of chitosan protonation and MBI corrosion inhibitor makes the composite coating have high corrosion inhibition efficiency in acidic electrolyte. This pH-responsive self-healing approach is potentially useful for designing next-generation of selfhealing coatings with high healing efficiency.
资助项目	National Natural Science Foundation of China[42076039] ; National Natural Science Foundation of China[51708541] ; National Natural Science Foundation of China[51801035] ; Applied Basic Research Programs of Qingdao[E1KY12106N] ; China Postdoctoral Science Foundation[2021M693206] ; CAS-VPST Silk Road Science Fund 2021[133137KYSB20200034] ; Natural Science Foundation of Guangxi Province[2018GXNSFBA138059]
WOS研究方向	Chemistry ; Materials Science
语种	英语
出版者	ELSEVIER SCIENCE SA
WOS记录号	WOS:000701917200011
内容类型	期刊论文
源URL	[http://ir.qdio.ac.cn/handle/337002/176503]
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; Duan, Jizhou; Zhao, Xia
作者单位	1.Guangxi Univ, Sch Chem & Chem Engn, Nanning 530004, Peoples R China 2.Chinese Acad Sci, Ctr Ocean Megasci, Qingdao 266071, Peoples R China 3.Ocean Univ China, Sch Mat Sci & Engn, 238 Songling Rd, Qingdao 266100, Peoples R China 4.Chinese Acad Sci, Inst Oceanol, Key Lab Marine Environm Corros & Biofouling, Qingdao 266071, Peoples R China 5.Pilot Natl Lab Marine Sci & Technol, Open Studio Marine Corros & Protect, Qingdao 266237, Peoples R China
推荐引用方式 GB/T 7714	Ji, Xiaohong,Wang, Wei,Duan, Jizhou,et al. Developing wide pH-responsive, self-healing, and anti-corrosion epoxy composite coatings based on encapsulating oleic acid/ 2-mercaptobenzimidazole corrosion inhibitors in chitosan/poly(vinyl alcohol) core-shell nanofibers[J]. PROGRESS IN ORGANIC COATINGS,2021,161:13.
APA	Ji, Xiaohong.,Wang, Wei.,Duan, Jizhou.,Zhao, Xia.,Wang, Lifei.,...&Hou, Baorong.(2021).Developing wide pH-responsive, self-healing, and anti-corrosion epoxy composite coatings based on encapsulating oleic acid/ 2-mercaptobenzimidazole corrosion inhibitors in chitosan/poly(vinyl alcohol) core-shell nanofibers.PROGRESS IN ORGANIC COATINGS,161,13.
MLA	Ji, Xiaohong,et al."Developing wide pH-responsive, self-healing, and anti-corrosion epoxy composite coatings based on encapsulating oleic acid/ 2-mercaptobenzimidazole corrosion inhibitors in chitosan/poly(vinyl alcohol) core-shell nanofibers".PROGRESS IN ORGANIC COATINGS 161(2021):13.