Microcontainer-based waterborne epoxy coatings for AA2024-T3: Effect of nature and number of polyelectrolyte multilayers on active protection performance

doi:10.1016/j.matchemphys.2019.122404

IMR OpenIR

	Microcontainer-based waterborne epoxy coatings for AA2024-T3: Effect of nature and number of polyelectrolyte multilayers on active protection performance
	Udoh, Inime Ime 1,2; Shi, Hongwei 1; Liu, Fuchun 1; Han, En-Hou 1
通讯作者	Shi, Hongwei(hwshi@imr.ac.cn)
	2020-02-01
发表期刊	MATERIALS CHEMISTRY AND PHYSICS
ISSN	0254-0584
卷号	241 页码:15
摘要	New insights on the effect of nature and number of polyelectrolyte (PE) shells on active anticorrosion potential of microcontainers (MCs) applied as pH-sensitive reservoirs in coatings for the protection of AA2024-T3 is reported. Mesoporous silica particles (MSP) were loaded with benzotriazole (BTA) and shelled with different polyelectrolyte multilayers (PEM), demonstrating pH sensitivity. Weak-weak polyelectrolyte (W-W PE) shells allow immediate release of inhibitor, but weak-strong polyelectrolyte (W-S PE) shells encourage slower, more controlled and prolonged release, as revealed by release profiles of BTA from microcontainers. Active anticorrosion protection characterizations of the coatings doped with microcontainers were carried out by electrochemical techniques (EIS, SVET) and salt spray tests. Results reveal dependence of active properties of coatings on the nature and number of polyelectrolyte multilayers of microcontainers. We anticipate that proper choice of PEMs on smart containers can aid controlled functionalization of active feedback systems.
关键词	Aluminium alloy Polyelectrolytes Epoxy coating EIS Controlled release
资助者	National Natural Science Foundation of China
DOI	10.1016/j.matchemphys.2019.122404
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[51571202] ; National Natural Science Foundation of China[51001109]
WOS研究方向	Materials Science
WOS类目	Materials Science, Multidisciplinary
WOS记录号	WOS:000514749500067
出版者	ELSEVIER SCIENCE SA
引用统计	被引频次：25[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/321006/137404
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 Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Udoh, Inime Ime,Shi, Hongwei,Liu, Fuchun,et al. Microcontainer-based waterborne epoxy coatings for AA2024-T3: Effect of nature and number of polyelectrolyte multilayers on active protection performance[J]. MATERIALS CHEMISTRY AND PHYSICS,2020,241:15.
APA	Udoh, Inime Ime,Shi, Hongwei,Liu, Fuchun,&Han, En-Hou.(2020).Microcontainer-based waterborne epoxy coatings for AA2024-T3: Effect of nature and number of polyelectrolyte multilayers on active protection performance.MATERIALS CHEMISTRY AND PHYSICS,241,15.
MLA	Udoh, Inime Ime,et al."Microcontainer-based waterborne epoxy coatings for AA2024-T3: Effect of nature and number of polyelectrolyte multilayers on active protection performance".MATERIALS CHEMISTRY AND PHYSICS 241(2020):15.