Evaluation of coating resistivity for pigmented/unpigmented epoxy coatings under marine alternating hydrostatic pressure

doi:10.1016/j.jmst.2019.09.011

CORC > 金属研究所 > 中国科学院金属研究所

	Evaluation of coating resistivity for pigmented/unpigmented epoxy coatings under marine alternating hydrostatic pressure
	Meng, Fandi 1; Liu, Li 1; Cui, Yu 2; Wang, Fuhui 1
刊名	JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
	2021-02-20
卷号	64 页码:165-175
关键词	Organic coatings Coating resistivity Distribution models EIS Alternating hydrostatic pressure
ISSN号	1005-0302
DOI	10.1016/j.jmst.2019.09.011
通讯作者	Liu, Li(liuli@mail.neu.edu.cn)
英文摘要	To realize a rapid evaluation of coating degradation under alternating hydrostatic pressure (AHP), appropriate physical models of electrochemical impedance spectroscopy (EIS) data fitting were respectively developed for epoxy coatings with and without pigments, based on their different water absorption behaviours. Power-law model was selected to evaluate the anti-permeability of epoxy varnish (EV) coating, which tends to form through pores in the coating structure. On the other hand, two-layer model based on Young theory was developed to evaluate the anti-permeability of pigmented epoxy coating. Consequently, the resistivity profile with coating thickness was calculated as a critical parameter to describe the anti-permeability of coating at different immersion time. The interpretation of water diffusion dynamics based on different coating structures was also given, which is responsible for the choice of distribution models. (C) 2019 Published by Elsevier Ltd on behalf of The editorial office of Journal of Materials Science & Technology.
资助项目	National Natural Science Foundation of China[51622106] ; National Natural Science Foundation of China[51901040] ; Fundamental Research Funds for the Central Universities[N170203005] ; Fundamental Research Funds for the Central Universities[N170212021] ; China Postdoctoral ScienceFoundation[2018M640256]
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
语种	英语
出版者	JOURNAL MATER SCI TECHNOL
WOS记录号	WOS:000607110600015
资助机构	National Natural Science Foundation of China ; Fundamental Research Funds for the Central Universities ; China Postdoctoral ScienceFoundation
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/159005]
专题	金属研究所_中国科学院金属研究所
通讯作者	Liu, Li
作者单位	1.Northeastern Univ, Shenyang Natl Lab Mat Sci, Shenyang 110819, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Meng, Fandi,Liu, Li,Cui, Yu,et al. Evaluation of coating resistivity for pigmented/unpigmented epoxy coatings under marine alternating hydrostatic pressure[J]. JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,2021,64:165-175.
APA	Meng, Fandi,Liu, Li,Cui, Yu,&Wang, Fuhui.(2021).Evaluation of coating resistivity for pigmented/unpigmented epoxy coatings under marine alternating hydrostatic pressure.JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,64,165-175.
MLA	Meng, Fandi,et al."Evaluation of coating resistivity for pigmented/unpigmented epoxy coatings under marine alternating hydrostatic pressure".JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY 64(2021):165-175.