Effect of Electrodeposition Parameters on the Morphology, Topography and Corrosion Resistance of Epoxy Resin/Zinc Hybrid Coatings
The paper presents the morphology, topography and corrosion behavior of epoxy resin/zinc hybrid coatings obtained by electrodeposition from zinc sulphate electrolyte. The effect of current density and mean diameter size of polymer particles used for electrodeposition of the epoxy resin/zinc coatings...
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MDPI AG
2021-04-01
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| Series: | Materials |
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| Online Access: | https://www.mdpi.com/1996-1944/14/8/1991 |
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| author | Alina Crina Mureşan Daniela Laura Buruiană Gina Genoveva Istrate Ştefan Cătălin Pintilie |
| author_facet | Alina Crina Mureşan Daniela Laura Buruiană Gina Genoveva Istrate Ştefan Cătălin Pintilie |
| author_sort | Alina Crina Mureşan |
| collection | DOAJ |
| description | The paper presents the morphology, topography and corrosion behavior of epoxy resin/zinc hybrid coatings obtained by electrodeposition from zinc sulphate electrolyte. The effect of current density and mean diameter size of polymer particles used for electrodeposition of the epoxy resin/zinc coatings on the morphology, topography and roughness of the surfaces were investigated by Scanning Electron Microscopy and Atomic Force Microscopy. The corrosion behavior of the hybrid coatings in 0.5 M sodium chloride solution was evaluated using electrochemical methods. For microbiological corrosion, the effect of sulphate reducing bacteria (SRB) on the surfaces was evaluated using epifluorescence microscopy. The surface roughness before and after bacteria attachment was evaluated using Atomic force microscopy. Polymer particles provide an influence in restricting the growth of zinc crystals as well as a catalytic role in nucleation sites increase. The results of electrochemical tests indicate a very good corrosion resistance of hybrid coatings comparing with zinc coatings. Epifluorescence images demonstrate that hybrid coating surfaces are slightly attacked by sulphate reducing bacteria. |
| first_indexed | 2024-03-10T12:17:07Z |
| format | Article |
| id | doaj.art-2fc7e52b6edf440c807e7b7a682dfaf1 |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-10T12:17:07Z |
| publishDate | 2021-04-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Materials |
| spelling | doaj.art-2fc7e52b6edf440c807e7b7a682dfaf12023-11-21T15:45:30ZengMDPI AGMaterials1996-19442021-04-01148199110.3390/ma14081991Effect of Electrodeposition Parameters on the Morphology, Topography and Corrosion Resistance of Epoxy Resin/Zinc Hybrid CoatingsAlina Crina Mureşan0Daniela Laura Buruiană1Gina Genoveva Istrate2Ştefan Cătălin Pintilie3Interdisciplinary Research Center in the Field of Eco-Nano Technology and Advanced Materials (CC-ITI), Faculty of Engineering, Dunarea de Jos University of Galati, 47 Domneasca Street, 800008 Galati, RomaniaInterdisciplinary Research Center in the Field of Eco-Nano Technology and Advanced Materials (CC-ITI), Faculty of Engineering, Dunarea de Jos University of Galati, 47 Domneasca Street, 800008 Galati, RomaniaInterdisciplinary Research Center in the Field of Eco-Nano Technology and Advanced Materials (CC-ITI), Faculty of Engineering, Dunarea de Jos University of Galati, 47 Domneasca Street, 800008 Galati, RomaniaCross-Border Faculty, Department of Applied Sciences, Dunarea de Jos University of Galati, 47 Domneasca Street, 800008 Galati, RomaniaThe paper presents the morphology, topography and corrosion behavior of epoxy resin/zinc hybrid coatings obtained by electrodeposition from zinc sulphate electrolyte. The effect of current density and mean diameter size of polymer particles used for electrodeposition of the epoxy resin/zinc coatings on the morphology, topography and roughness of the surfaces were investigated by Scanning Electron Microscopy and Atomic Force Microscopy. The corrosion behavior of the hybrid coatings in 0.5 M sodium chloride solution was evaluated using electrochemical methods. For microbiological corrosion, the effect of sulphate reducing bacteria (SRB) on the surfaces was evaluated using epifluorescence microscopy. The surface roughness before and after bacteria attachment was evaluated using Atomic force microscopy. Polymer particles provide an influence in restricting the growth of zinc crystals as well as a catalytic role in nucleation sites increase. The results of electrochemical tests indicate a very good corrosion resistance of hybrid coatings comparing with zinc coatings. Epifluorescence images demonstrate that hybrid coating surfaces are slightly attacked by sulphate reducing bacteria.https://www.mdpi.com/1996-1944/14/8/1991epoxy resin/zinc coatingselectrodepositiontopographycorrosion resistancesulphate reducing bacteria |
| spellingShingle | Alina Crina Mureşan Daniela Laura Buruiană Gina Genoveva Istrate Ştefan Cătălin Pintilie Effect of Electrodeposition Parameters on the Morphology, Topography and Corrosion Resistance of Epoxy Resin/Zinc Hybrid Coatings Materials epoxy resin/zinc coatings electrodeposition topography corrosion resistance sulphate reducing bacteria |
| title | Effect of Electrodeposition Parameters on the Morphology, Topography and Corrosion Resistance of Epoxy Resin/Zinc Hybrid Coatings |
| title_full | Effect of Electrodeposition Parameters on the Morphology, Topography and Corrosion Resistance of Epoxy Resin/Zinc Hybrid Coatings |
| title_fullStr | Effect of Electrodeposition Parameters on the Morphology, Topography and Corrosion Resistance of Epoxy Resin/Zinc Hybrid Coatings |
| title_full_unstemmed | Effect of Electrodeposition Parameters on the Morphology, Topography and Corrosion Resistance of Epoxy Resin/Zinc Hybrid Coatings |
| title_short | Effect of Electrodeposition Parameters on the Morphology, Topography and Corrosion Resistance of Epoxy Resin/Zinc Hybrid Coatings |
| title_sort | effect of electrodeposition parameters on the morphology topography and corrosion resistance of epoxy resin zinc hybrid coatings |
| topic | epoxy resin/zinc coatings electrodeposition topography corrosion resistance sulphate reducing bacteria |
| url | https://www.mdpi.com/1996-1944/14/8/1991 |
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