A smart anticorrosive coating based on pH-sensitive microspheres fabricated via a facile method for protection of AA2024-T3

doi:10.1016/j.porgcoat.2024.108259

IMR OpenIR

	A smart anticorrosive coating based on pH-sensitive microspheres fabricated via a facile method for protection of AA2024-T3
	Li, Jianyang 1,2,4; Shi, Hongwei 1,2,3; Gu, Songhua 1,2; Liu, Fuchun 1,2,5; Han, En -Hou 1,2,5
通讯作者	Shi, Hongwei(hwshi@sut.edu.cn)
	2024-04-01
发表期刊	PROGRESS IN ORGANIC COATINGS
ISSN	0300-9440
卷号	189 页码:15
摘要	Self-healing coating has attracted much attention due to its intelligent response to stimulus and automatically recovery of coating properties. This work introduced a self-healing epoxy coating based on the Eudragit E100 (EE100) pH -sensitive microspheres loaded with 2-mercaptobenzothiazole (2-MBT) inhibitor. As a key component, the microspheres with a mean diameter of 2 mu m were fabricated via a facile solvent -spray drying technique, and displayed good pH stimuli-response release behavior in acid (pH < 5) or alkaline (pH > 10) conditions. The self-healing coatings (SC) were prepared by incorporating 3 wt% microspheres in a water-borne epoxy coating. The resistance of coating in SC reached up to >1010 omega & sdot;cm2 after 180 days of immersion in 3.5 wt% NaCl solution, which is 6 orders of magnitude higher than that of epoxy coating (EP). The SC displayed good self-healing effect, as the impedance modular of the SC significantly improved than the EP. The neutral salt spray tests also confirm the good long-term anti-corrosion performance of the SC. This work provides a facile strategy to prepare microspheres and construct self-healing coating, which shows the potential application in substituting the coating with chromate.
关键词	Self-healing Microspheres Spray drying pH-sensitive EIS
资助者	National Natural Science Foundation of China ; Key Project of Basic Research Projects of Liaoning Provincial Department of Education
DOI	10.1016/j.porgcoat.2024.108259
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[52171089] ; National Natural Science Foundation of China[51571202] ; Key Project of Basic Research Projects of Liaoning Provincial Department of Education[JYTZD2023114]
WOS研究方向	Chemistry ; Materials Science
WOS类目	Chemistry, Applied ; Materials Science, Coatings & Films
WOS记录号	WOS:001175837700001
出版者	ELSEVIER SCIENCE SA
引用统计	被引频次：14[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/321006/184741
专题	中国科学院金属研究所
通讯作者	Shi, Hongwei
作者单位	1.Chinese Acad Sci, Inst Met Res, CAS Key Lab Nucl Mat & Safety Assessment, Shenyang 110016, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China 3.Shenyang Univ Technol, Sch Mat Sci & Engn, Shenyang 110870, Peoples R China 4.Yantai Univ, Coll Nucl Equipment & Nucl Engn, Yantai 264005, Peoples R China 5.Inst Corros Sci & Technol, Guangzhou 510530, Peoples R China
推荐引用方式 GB/T 7714	Li, Jianyang,Shi, Hongwei,Gu, Songhua,et al. A smart anticorrosive coating based on pH-sensitive microspheres fabricated via a facile method for protection of AA2024-T3[J]. PROGRESS IN ORGANIC COATINGS,2024,189:15.
APA	Li, Jianyang,Shi, Hongwei,Gu, Songhua,Liu, Fuchun,&Han, En -Hou.(2024).A smart anticorrosive coating based on pH-sensitive microspheres fabricated via a facile method for protection of AA2024-T3.PROGRESS IN ORGANIC COATINGS,189,15.
MLA	Li, Jianyang,et al."A smart anticorrosive coating based on pH-sensitive microspheres fabricated via a facile method for protection of AA2024-T3".PROGRESS IN ORGANIC COATINGS 189(2024):15.