Multi-physical and anti-corrosion properties of graphene-reinforced epoxy nanocomposite coatings for industrial applications
Polymer-based coatings are widely used as a protective barrier to corrosion, but their performance is not sufficiently sustainable for industrial applications due to the formation of micropores and microcracks during solidification. Graphene is a promising reinforcing element acting as a filler for...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2024-01-01
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| Series: | Arabian Journal of Chemistry |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S1878535223008869 |
| _version_ | 1827583862319874048 |
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| author | Md. Ramjan Ali Mohammad Asaduzzaman Chowdhury Mohammad Shahin Md. Mostafizur Rahman Md. Osman Ali Md. Abdul Gafur |
| author_facet | Md. Ramjan Ali Mohammad Asaduzzaman Chowdhury Mohammad Shahin Md. Mostafizur Rahman Md. Osman Ali Md. Abdul Gafur |
| author_sort | Md. Ramjan Ali |
| collection | DOAJ |
| description | Polymer-based coatings are widely used as a protective barrier to corrosion, but their performance is not sufficiently sustainable for industrial applications due to the formation of micropores and microcracks during solidification. Graphene is a promising reinforcing element acting as a filler for polymeric coatings. This study used 1–5 wt% graphene synthesized by the electrochemical exfoliation process as a reinforcing nanofiller to manufacture graphene-reinforced epoxy nanocomposite (GREN) coatings. Copper was used as a substrate material for coating with GREN by a bar coating method. GREN coatings were characterized by X-ray diffraction, Raman spectroscopy, FTIR spectroscopy, FESEM, and EDX. A comprehensive investigation was conducted on the various multi-physical properties of GREN coatings, including coating thickness, surface roughness, adhesiveness, surface wettability, water absorptivity, thermal stability, electrical conductivity, and anti-corrosion capabilities. The results exhibited that graphene fills micro-pores produced in epoxy during solidification. The surface roughness significantly decreased to 0.25 µm with the addition of 5 wt% graphene in pure epoxy. In addition, the adhesiveness, thermal stability, and electrical conductivity of GREN coatings increased with the increase in graphene content. The GREN coatings containing 3 wt% and 5 wt% graphene revealed hydrophobic surface showing 94° and 102° water contact angle, respectively. In the electrochemical analysis and immersion test in 3.5 % NaCl solution for 600 h, the GREN coatings showed higher corrosion resistance without compromising their electrical conductivity compared to the pure epoxy. Based on the results, GREN can be a promising coating material for aerospace, mining, and electronic packaging applications. Apart from this, the results of this work will explore the new significance in industry, where multi-physical properties from a single nanocomposite coating are crucial. |
| first_indexed | 2024-03-08T23:12:51Z |
| format | Article |
| id | doaj.art-ca8a261fddfe4a2997f2dce926221b26 |
| institution | Directory Open Access Journal |
| issn | 1878-5352 |
| language | English |
| last_indexed | 2024-03-08T23:12:51Z |
| publishDate | 2024-01-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Arabian Journal of Chemistry |
| spelling | doaj.art-ca8a261fddfe4a2997f2dce926221b262023-12-15T07:23:29ZengElsevierArabian Journal of Chemistry1878-53522024-01-01171105424Multi-physical and anti-corrosion properties of graphene-reinforced epoxy nanocomposite coatings for industrial applicationsMd. Ramjan Ali0Mohammad Asaduzzaman Chowdhury1Mohammad Shahin2Md. Mostafizur Rahman3Md. Osman Ali4Md. Abdul Gafur5Department of Mechanical Engineering, Dhaka University of Engineering & Technology, Gazipur 1707, Bangladesh; Corresponding author.Department of Mechanical Engineering, Dhaka University of Engineering & Technology, Gazipur 1707, BangladeshDepartment of Mechanical Engineering, Dhaka University of Engineering & Technology, Gazipur 1707, BangladeshDepartment of Mechanical Engineering, Dhaka University of Engineering & Technology, Gazipur 1707, BangladeshDepartment of Mechanical Engineering, Dhaka University of Engineering & Technology, Gazipur 1707, BangladeshPilot Plant and Process Development Centre, Bangladesh Council of Scientific and Industrial Research, Dhaka 1205, BangladeshPolymer-based coatings are widely used as a protective barrier to corrosion, but their performance is not sufficiently sustainable for industrial applications due to the formation of micropores and microcracks during solidification. Graphene is a promising reinforcing element acting as a filler for polymeric coatings. This study used 1–5 wt% graphene synthesized by the electrochemical exfoliation process as a reinforcing nanofiller to manufacture graphene-reinforced epoxy nanocomposite (GREN) coatings. Copper was used as a substrate material for coating with GREN by a bar coating method. GREN coatings were characterized by X-ray diffraction, Raman spectroscopy, FTIR spectroscopy, FESEM, and EDX. A comprehensive investigation was conducted on the various multi-physical properties of GREN coatings, including coating thickness, surface roughness, adhesiveness, surface wettability, water absorptivity, thermal stability, electrical conductivity, and anti-corrosion capabilities. The results exhibited that graphene fills micro-pores produced in epoxy during solidification. The surface roughness significantly decreased to 0.25 µm with the addition of 5 wt% graphene in pure epoxy. In addition, the adhesiveness, thermal stability, and electrical conductivity of GREN coatings increased with the increase in graphene content. The GREN coatings containing 3 wt% and 5 wt% graphene revealed hydrophobic surface showing 94° and 102° water contact angle, respectively. In the electrochemical analysis and immersion test in 3.5 % NaCl solution for 600 h, the GREN coatings showed higher corrosion resistance without compromising their electrical conductivity compared to the pure epoxy. Based on the results, GREN can be a promising coating material for aerospace, mining, and electronic packaging applications. Apart from this, the results of this work will explore the new significance in industry, where multi-physical properties from a single nanocomposite coating are crucial.http://www.sciencedirect.com/science/article/pii/S1878535223008869Graphene-reinforced epoxy nanocomposite coatingCorrosionSurface roughnessWater absorptivityThermal stabilityElectrical conductivity |
| spellingShingle | Md. Ramjan Ali Mohammad Asaduzzaman Chowdhury Mohammad Shahin Md. Mostafizur Rahman Md. Osman Ali Md. Abdul Gafur Multi-physical and anti-corrosion properties of graphene-reinforced epoxy nanocomposite coatings for industrial applications Arabian Journal of Chemistry Graphene-reinforced epoxy nanocomposite coating Corrosion Surface roughness Water absorptivity Thermal stability Electrical conductivity |
| title | Multi-physical and anti-corrosion properties of graphene-reinforced epoxy nanocomposite coatings for industrial applications |
| title_full | Multi-physical and anti-corrosion properties of graphene-reinforced epoxy nanocomposite coatings for industrial applications |
| title_fullStr | Multi-physical and anti-corrosion properties of graphene-reinforced epoxy nanocomposite coatings for industrial applications |
| title_full_unstemmed | Multi-physical and anti-corrosion properties of graphene-reinforced epoxy nanocomposite coatings for industrial applications |
| title_short | Multi-physical and anti-corrosion properties of graphene-reinforced epoxy nanocomposite coatings for industrial applications |
| title_sort | multi physical and anti corrosion properties of graphene reinforced epoxy nanocomposite coatings for industrial applications |
| topic | Graphene-reinforced epoxy nanocomposite coating Corrosion Surface roughness Water absorptivity Thermal stability Electrical conductivity |
| url | http://www.sciencedirect.com/science/article/pii/S1878535223008869 |
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