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Effect of graphite exfoliation degree on the corrosion protection for epoxy composite coating
Zheng, Hongpeng1,2; Zhou, Yanli1; Shao, Yawei1; Guo, Mengying1; Njoku, Demian I.3; Wang, Fuhui1,2
Corresponding AuthorShao, Yawei(shaoyawei@hrbeu.edu.cn)
2021-06-01
Source PublicationCOMPOSITES COMMUNICATIONS
ISSN2452-2139
Volume25Pages:6
AbstractFour kinds of graphite derivatives in different exfoliation degrees were synthesized via modified Hummers' method by controlling the mass ration of graphite and KMnO4. The modified graphite derivatives (GUF) were synthesized through chemical modification with the prepolymer of urea-formaldehyde. Results of Raman spectroscopy (Raman) and Scanning electron microscopy (SEM) revealed that the layer exfoliation was affected by oxidation degree during the preparation of graphene oxide (GO). The highly exfoliated GO was fully modified by UF resin and presented excellent compatibility with epoxy resin. The data of electrochemical impedance spectra (EIS) verified the optimal corrosion resistance of GUF/EP composite coating with the highly exfoliated GO sheets. The data of localized electrochemical impedance spectroscopy (LEIS) demonstrated that the highly exfoliated modified GO exhibited slight galvanic corrosion in the defective coatings.
KeywordEpoxy Graphene oxide Corrosion Modification Urea-formaldehyde
Funding Organizationnational key research and development plan ; Ministry of Science and Technology China ; China Postdoctoral Science Foundation
DOI10.1016/j.coco.2021.100751
Indexed BySCI
Language英语
Funding Projectnational key research and development plan ; Ministry of Science and Technology China[2016YFB0300604] ; China Postdoctoral Science Foundation[2020M680962]
WOS Research AreaMaterials Science
WOS SubjectMaterials Science, Composites
WOS IDWOS:000663431700004
PublisherELSEVIER SCI LTD
Citation statistics
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/160594
Collection中国科学院金属研究所
Corresponding AuthorShao, Yawei
Affiliation1.Harbin Engn Univ, Coll Mat Sci & Chem Engn, Nantong ST 145, Harbin 150001, Peoples R China
2.Northeastern Univ, Shenyang Natl Lab Mat Sci, 3-11 Wenhua Rd, Shenyang 110819, Peoples R China
3.Chinese Acad Sci, Inst Met Res, Wencui Rd 62, Shenyang 110016, Peoples R China
Recommended Citation
GB/T 7714
Zheng, Hongpeng,Zhou, Yanli,Shao, Yawei,et al. Effect of graphite exfoliation degree on the corrosion protection for epoxy composite coating[J]. COMPOSITES COMMUNICATIONS,2021,25:6.
APA Zheng, Hongpeng,Zhou, Yanli,Shao, Yawei,Guo, Mengying,Njoku, Demian I.,&Wang, Fuhui.(2021).Effect of graphite exfoliation degree on the corrosion protection for epoxy composite coating.COMPOSITES COMMUNICATIONS,25,6.
MLA Zheng, Hongpeng,et al."Effect of graphite exfoliation degree on the corrosion protection for epoxy composite coating".COMPOSITES COMMUNICATIONS 25(2021):6.
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