<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

CORC > 金属研究所 > 中国科学院金属研究所

	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 2
刊名	PROGRESS IN ORGANIC COATINGS
	2022-06-01
卷号	167 页码:12
关键词	Self-healing coating pH-sensitive microspheres Loading capacity Anticorrosion
ISSN号	0300-9440
DOI	10.1016/j.porgcoat.2022.106815
通讯作者	Yang, Huaiyu(hyyang@imr.ac.cn)
英文摘要	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.
资助项目	National Basic Research Pro-gram of China[2015CB655105]
WOS研究方向	Chemistry ; Materials Science
语种	英语
出版者	ELSEVIER SCIENCE SA
WOS记录号	WOS:000792018900003
资助机构	National Basic Research Pro-gram of China
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/173968]
专题	金属研究所_中国科学院金属研究所
通讯作者	Yang, Huaiyu
作者单位	1.Univ Sci & Technol China, Sch Mat Sci & Engn, Hefei 230026, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shenyang 110016, 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.