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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, Xiaohong1,2,4; Wang, Wei2,3; Duan, Jizhou1,2,4; Zhao, Xia1,2,4; Wang, Lifei1,2,4; Wang, Yanli5; Zhou, Ziyang1,2,4; Li, Weihua1,2,4,5; Hou, Baorong1,2,4,5
2021-12-01
Source PublicationPROGRESS IN ORGANIC COATINGS
ISSN0300-9440
Volume161Pages:13
Corresponding AuthorWang, Wei(wangwei8038@ouc.edu.cn) ; Duan, Jizhou(duanjz@qdio.ac.cn) ; Zhao, Xia(zx@qdio.ac.cn)
AbstractIn 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.
KeywordpH-responsive Chitosan core-shell nanofibers Epoxy composite coatings Self-healing Synergistic effect
DOI10.1016/j.porgcoat.2021.106454
Indexed BySCI
Language英语
Funding ProjectNational 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 Research AreaChemistry ; Materials Science
WOS SubjectChemistry, Applied ; Materials Science, Coatings & Films
WOS IDWOS:000701917200011
PublisherELSEVIER SCIENCE SA
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.qdio.ac.cn/handle/337002/176504
Collection海洋环境腐蚀与与生物污损重点实验室
Corresponding AuthorWang, Wei; Duan, Jizhou; Zhao, Xia
Affiliation1.Chinese Acad Sci, Inst Oceanol, Key Lab Marine Environm Corros & Biofouling, Qingdao 266071, Peoples R China
2.Pilot Natl Lab Marine Sci & Technol, Open Studio Marine Corros & Protect, Qingdao 266237, Peoples R China
3.Ocean Univ China, Sch Mat Sci & Engn, 238 Songling Rd, Qingdao 266100, Peoples R China
4.Chinese Acad Sci, Ctr Ocean Megasci, Qingdao 266071, Peoples R China
5.Guangxi Univ, Sch Chem & Chem Engn, Nanning 530004, Peoples R China
First Author AffilicationInstitute of Oceanology, Chinese Academy of Sciences;  Center for Ocean Mega-Science, Chinese Academy of Sciences
Corresponding Author AffilicationInstitute of Oceanology, Chinese Academy of Sciences;  Center for Ocean Mega-Science, Chinese Academy of Sciences
Recommended Citation
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.
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