Nano-SiO<sub>2</sub> and Silane Coupling Agent Co-Decorated Graphene Oxides with Enhanced Anti-Corrosion Performance of Epoxy Composite Coatings
Coatings are of great significance for irons and steels in regards to the harsh marine environment. Graphene oxides (GO) have been considered as an ideal filler material of epoxy coating. However, the undesired dispersion in the epoxy together with easy agglomeration and stacking remain great proble...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-10-01
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| Series: | International Journal of Molecular Sciences |
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| Online Access: | https://www.mdpi.com/1422-0067/22/20/11087 |
| _version_ | 1797514381047627776 |
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| author | Guangjie Hu Yuxuan Xiao Jie Ying |
| author_facet | Guangjie Hu Yuxuan Xiao Jie Ying |
| author_sort | Guangjie Hu |
| collection | DOAJ |
| description | Coatings are of great significance for irons and steels in regards to the harsh marine environment. Graphene oxides (GO) have been considered as an ideal filler material of epoxy coating. However, the undesired dispersion in the epoxy together with easy agglomeration and stacking remain great problems for practical application of GO composited epoxy coatings. A method that can effectively solve both self-aggregation and poor dispersion of GO is highly desired. Herein, we present a high dispersion strategy of graphene oxides in epoxy by co-decoration of nano-SiO<sub>2</sub> and silane coupling agent. The co-decorated GO filled epoxy coating exhibits high anti-corrosion performance, including high electrochemical impedance, high self-corrosive potential, low self-corrosive current, and superior electrochemical impedance stability for ten days to Q235 carbon steel. This work displays new possibilities for designing novel coating materials with high performance toward practical marine anti-corrosion applications. |
| first_indexed | 2024-03-10T06:30:49Z |
| format | Article |
| id | doaj.art-7510857dd54f48c7a908ff56db3d7b26 |
| institution | Directory Open Access Journal |
| issn | 1661-6596 1422-0067 |
| language | English |
| last_indexed | 2024-03-10T06:30:49Z |
| publishDate | 2021-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | International Journal of Molecular Sciences |
| spelling | doaj.art-7510857dd54f48c7a908ff56db3d7b262023-11-22T18:33:36ZengMDPI AGInternational Journal of Molecular Sciences1661-65961422-00672021-10-0122201108710.3390/ijms222011087Nano-SiO<sub>2</sub> and Silane Coupling Agent Co-Decorated Graphene Oxides with Enhanced Anti-Corrosion Performance of Epoxy Composite CoatingsGuangjie Hu0Yuxuan Xiao1Jie Ying2School of Chemical Engineering and Technology, Sun Yat-sen University, Zhuhai 519082, ChinaSchool of Chemical Engineering and Technology, Sun Yat-sen University, Zhuhai 519082, ChinaSchool of Chemical Engineering and Technology, Sun Yat-sen University, Zhuhai 519082, ChinaCoatings are of great significance for irons and steels in regards to the harsh marine environment. Graphene oxides (GO) have been considered as an ideal filler material of epoxy coating. However, the undesired dispersion in the epoxy together with easy agglomeration and stacking remain great problems for practical application of GO composited epoxy coatings. A method that can effectively solve both self-aggregation and poor dispersion of GO is highly desired. Herein, we present a high dispersion strategy of graphene oxides in epoxy by co-decoration of nano-SiO<sub>2</sub> and silane coupling agent. The co-decorated GO filled epoxy coating exhibits high anti-corrosion performance, including high electrochemical impedance, high self-corrosive potential, low self-corrosive current, and superior electrochemical impedance stability for ten days to Q235 carbon steel. This work displays new possibilities for designing novel coating materials with high performance toward practical marine anti-corrosion applications.https://www.mdpi.com/1422-0067/22/20/11087graphene oxideepoxy coatingsurface decorationanti-corrosion |
| spellingShingle | Guangjie Hu Yuxuan Xiao Jie Ying Nano-SiO<sub>2</sub> and Silane Coupling Agent Co-Decorated Graphene Oxides with Enhanced Anti-Corrosion Performance of Epoxy Composite Coatings International Journal of Molecular Sciences graphene oxide epoxy coating surface decoration anti-corrosion |
| title | Nano-SiO<sub>2</sub> and Silane Coupling Agent Co-Decorated Graphene Oxides with Enhanced Anti-Corrosion Performance of Epoxy Composite Coatings |
| title_full | Nano-SiO<sub>2</sub> and Silane Coupling Agent Co-Decorated Graphene Oxides with Enhanced Anti-Corrosion Performance of Epoxy Composite Coatings |
| title_fullStr | Nano-SiO<sub>2</sub> and Silane Coupling Agent Co-Decorated Graphene Oxides with Enhanced Anti-Corrosion Performance of Epoxy Composite Coatings |
| title_full_unstemmed | Nano-SiO<sub>2</sub> and Silane Coupling Agent Co-Decorated Graphene Oxides with Enhanced Anti-Corrosion Performance of Epoxy Composite Coatings |
| title_short | Nano-SiO<sub>2</sub> and Silane Coupling Agent Co-Decorated Graphene Oxides with Enhanced Anti-Corrosion Performance of Epoxy Composite Coatings |
| title_sort | nano sio sub 2 sub and silane coupling agent co decorated graphene oxides with enhanced anti corrosion performance of epoxy composite coatings |
| topic | graphene oxide epoxy coating surface decoration anti-corrosion |
| url | https://www.mdpi.com/1422-0067/22/20/11087 |
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