Corrosion resistance of graphene/waterborne epoxy composite coatings in CO(2)-satarated NaCl solution

This study investigated the corrosion resistance of graphene/waterborne epoxy composite coatings in CO(2)-satarated NaCl solution. The coatings were prepared by dispersing graphene in waterborne epoxy with the addition of carboxymethylcellulose sodium. The structure and composition of the coatings w...

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Detalles Bibliográficos
Autores principales: Xu, Hao, Hu, Haijun, Wang, Hongmei, Li, Yongjun, Li, Yun
Formato: Online Artículo Texto
Lenguaje:English
Publicado: The Royal Society 2020
Materias:
Chemistry
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7277262/
https://www.ncbi.nlm.nih.gov/pubmed/32537198
http://dx.doi.org/10.1098/rsos.191943
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author Xu, Hao
Hu, Haijun
Wang, Hongmei
Li, Yongjun
Li, Yun
author_facet Xu, Hao
Hu, Haijun
Wang, Hongmei
Li, Yongjun
Li, Yun
author_sort Xu, Hao
collection PubMed
description This study investigated the corrosion resistance of graphene/waterborne epoxy composite coatings in CO(2)-satarated NaCl solution. The coatings were prepared by dispersing graphene in waterborne epoxy with the addition of carboxymethylcellulose sodium. The structure and composition of the coatings were characterized by scanning electron microscopy, transmission electron microscopy, Fourier-transform infrared and Raman spectroscopies. The corrosion resistance of the composite coatings was investigated by potentiodynamic polarization measurements and electrochemical impedance spectroscopy. Composite coatings with more uniform surfaces and far fewer defects than blank waterborne epoxy coatings were obtained on 1020 steel. The 0.5 wt% graphene/waterborne epoxy composite coating exhibited a much lower corrosion rate and provided better water resistance properties and long-term protection than those of the blank epoxy coating in CO(2)-satarated NaCl solution.
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spelling pubmed-72772622020-06-11 Corrosion resistance of graphene/waterborne epoxy composite coatings in CO(2)-satarated NaCl solution Xu, Hao Hu, Haijun Wang, Hongmei Li, Yongjun Li, Yun R Soc Open Sci Chemistry This study investigated the corrosion resistance of graphene/waterborne epoxy composite coatings in CO(2)-satarated NaCl solution. The coatings were prepared by dispersing graphene in waterborne epoxy with the addition of carboxymethylcellulose sodium. The structure and composition of the coatings were characterized by scanning electron microscopy, transmission electron microscopy, Fourier-transform infrared and Raman spectroscopies. The corrosion resistance of the composite coatings was investigated by potentiodynamic polarization measurements and electrochemical impedance spectroscopy. Composite coatings with more uniform surfaces and far fewer defects than blank waterborne epoxy coatings were obtained on 1020 steel. The 0.5 wt% graphene/waterborne epoxy composite coating exhibited a much lower corrosion rate and provided better water resistance properties and long-term protection than those of the blank epoxy coating in CO(2)-satarated NaCl solution. The Royal Society 2020-05-13 /pmc/articles/PMC7277262/ /pubmed/32537198 http://dx.doi.org/10.1098/rsos.191943 Text en © 2020 The Authors. http://creativecommons.org/licenses/by/4.0/ http://creativecommons.org/licenses/by/4.0/http://creativecommons.org/licenses/by/4.0/Published by the Royal Society under the terms of the Creative Commons Attribution License http://creativecommons.org/licenses/by/4.0/, which permits unrestricted use, provided the original author and source are credited.
spellingShingle Chemistry
Xu, Hao
Hu, Haijun
Wang, Hongmei
Li, Yongjun
Li, Yun
Corrosion resistance of graphene/waterborne epoxy composite coatings in CO(2)-satarated NaCl solution
title Corrosion resistance of graphene/waterborne epoxy composite coatings in CO(2)-satarated NaCl solution
title_full Corrosion resistance of graphene/waterborne epoxy composite coatings in CO(2)-satarated NaCl solution
title_fullStr Corrosion resistance of graphene/waterborne epoxy composite coatings in CO(2)-satarated NaCl solution
title_full_unstemmed Corrosion resistance of graphene/waterborne epoxy composite coatings in CO(2)-satarated NaCl solution
title_short Corrosion resistance of graphene/waterborne epoxy composite coatings in CO(2)-satarated NaCl solution
title_sort corrosion resistance of graphene/waterborne epoxy composite coatings in co(2)-satarated nacl solution
topic Chemistry
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7277262/
https://www.ncbi.nlm.nih.gov/pubmed/32537198
http://dx.doi.org/10.1098/rsos.191943
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AT liyongjun corrosionresistanceofgraphenewaterborneepoxycompositecoatingsinco2sataratednaclsolution
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