<p>Improving the self-healing performance of the water-borne epoxy anticorrosion coating in 3.5 wt% NaCl solution using acid and alkaline dual sensitive organic microspheres</p>

doi:10.1016/j.porgcoat.2022.106815

IMR OpenIR

	Improving the self-healing performance of the water-borne epoxy anticorrosion coating in 3.5 wt% NaCl solution using acid and alkaline dual sensitive organic microspheres
	Cao, Yang 1,2; Yuan, Xuwen 1,2; Wang, Xuan 1,2; Wu, Hao 1,2; Wang, Ge 1,2; Yang, Huaiyu 1
通讯作者	Yang, Huaiyu(hyyang@imr.ac.cn)
	2022-06-01
发表期刊	PROGRESS IN ORGANIC COATINGS
ISSN	0300-9440
卷号	167 页码:12
摘要	Acid-alkaline double sensitive Eudragit microspheres embedded with corrosion inhibitor 8-hydroxyquinoline (8HQ@Eu) were prepared by a low-cost one-step method, and a novel coating was designed to improve the self-healing performance of the water-borne epoxy resin in 3.5 wt% NaCl solution by using the 8HQ@Eu as smart anti-corrosive carrier. The results of electrochemical impedance spectroscopy (EIS) showed the low-frequency impedance modulus (\|Z\|(0.01Hz)) of the scratched coating was about 10 times higher than that of the pure epoxy coating in the presence of 8HQ@Eu microspheres after 30 d of immersion, and the oxide film resistance and charge transfer resistance of the 8HQ@Eu sample increased about 10 times and 8 times respectively due to the covering of corrosion inhibitor protective film. While the results of scanning vibrating electrode technique (SVET) indicated the corrosion current of the 8HQ@Eu sample in the scratched area decreased to more than an order of magnitude lower than that of pure epoxy coating within 24 h. Salt spray test indicated that the substrate corrosion and coating delamination near the scratched area were significantly inhibited. XPS analysis directly confirmed that the corrosion inhibitor was delivered to the corroded sites.
关键词	Self-healing coating pH-sensitive microspheres Loading capacity Anticorrosion
资助者	National Basic Research Pro-gram of China
DOI	10.1016/j.porgcoat.2022.106815
收录类别	SCI
语种	英语
资助项目	National Basic Research Pro-gram of China[2015CB655105]
WOS研究方向	Chemistry ; Materials Science
WOS类目	Chemistry, Applied ; Materials Science, Coatings & Films
WOS记录号	WOS:000792018900003
出版者	ELSEVIER SCIENCE SA
引用统计	被引频次：17[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/173969
专题	中国科学院金属研究所
通讯作者	Yang, Huaiyu
作者单位	1.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, Hefei 230026, Peoples R China
推荐引用方式 GB/T 7714	Cao, Yang,Yuan, Xuwen,Wang, Xuan,et al. Improving the self-healing performance of the water-borne epoxy anticorrosion coating in 3.5 wt% NaCl solution using acid and alkaline dual sensitive organic microspheres [J]. PROGRESS IN ORGANIC COATINGS,2022,167:12.
APA	Cao, Yang,Yuan, Xuwen,Wang, Xuan,Wu, Hao,Wang, Ge,&Yang, Huaiyu.(2022). Improving the self-healing performance of the water-borne epoxy anticorrosion coating in 3.5 wt% NaCl solution using acid and alkaline dual sensitive organic microspheres .PROGRESS IN ORGANIC COATINGS,167,12.
MLA	Cao, Yang,et al." Improving the self-healing performance of the water-borne epoxy anticorrosion coating in 3.5 wt% NaCl solution using acid and alkaline dual sensitive organic microspheres ".PROGRESS IN ORGANIC COATINGS 167(2022):12.