Preparation of Nitrogen-Doped Graphene Aerogel/Epoxy Nanocomposites and Experimental Study of Mechanical Properties
Nitrogen-Doped Graphene Aerogel (N-GA) nanomaterials can significantly improve the functional efficiency of polymer composites due to its three-dimensional structure and suitable physical properties. The preparation process affects the performance improvement. In this study, the effect of preparatio...
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| Format: | Article |
| Language: | English |
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Islamic Azad University-Isfahan (Khorasgan) Branch
2020-12-01
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| Series: | International Journal of Advanced Design and Manufacturing Technology |
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| Online Access: | https://admt.isfahan.iau.ir/article_678441_6660d864407c5fdf6ac0450635af5b68.pdf |
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| author | ali kordi saeed adibnazari Ali Imam mohammad najafi maryam ghasabzadeh saryazdi |
| author_facet | ali kordi saeed adibnazari Ali Imam mohammad najafi maryam ghasabzadeh saryazdi |
| author_sort | ali kordi |
| collection | DOAJ |
| description | Nitrogen-Doped Graphene Aerogel (N-GA) nanomaterials can significantly improve the functional efficiency of polymer composites due to its three-dimensional structure and suitable physical properties. The preparation process affects the performance improvement. In this study, the effect of preparation method and the mechanisms affecting the strength behavior of Nitrogen-doped Graphene Aerogel/Epoxy (N-GA/E) nanocomposites was investigated. For this purpose, nanoparticles of Graphene Oxide (GO) were produced using Hummers’ method; then, the N-GA was synthesized using the hydrothermal method and the freeze-drying process. The characterization experiments were used in order to confirm the structure and quality of the synthesized nanomaterials. Then, specimens of nanocomposite were prepared by adding weight percentages of 0.05, 0.1, 0.2, 0.5, 1, and 2 from the synthesized N-GA to the epoxy resin. In other preparation processes, N-GA/E nanocomposite specimens were produced using auxiliary solvents. After tensile tests, the best strength performance was observed in the specimens with the preparation process in which acetone solvent was used. The tensile strength and modulus of these nanocomposite specimens have increased by 23% and 20% compared to neat epoxy specimens, respectively. Also, the optimal weight percentage of N-GA nanomaterials for distribution in epoxy is 0.1 wt.%. Microscopic images of the fracture surfaces of the specimens used in the tensile test showed that the placement of N-GA porous plates in epoxy with the creation of the mechanism for micro crack formation led to more energy absorption during the stretching process of the N-GA/E nanocomposites. |
| first_indexed | 2024-03-11T17:43:07Z |
| format | Article |
| id | doaj.art-aae147681a9448a6b2fc40378f65634d |
| institution | Directory Open Access Journal |
| issn | 2252-0406 2383-4447 |
| language | English |
| last_indexed | 2024-03-11T17:43:07Z |
| publishDate | 2020-12-01 |
| publisher | Islamic Azad University-Isfahan (Khorasgan) Branch |
| record_format | Article |
| series | International Journal of Advanced Design and Manufacturing Technology |
| spelling | doaj.art-aae147681a9448a6b2fc40378f65634d2023-10-18T08:51:48ZengIslamic Azad University-Isfahan (Khorasgan) BranchInternational Journal of Advanced Design and Manufacturing Technology2252-04062383-44472020-12-01134495510.30495/admt.2020.1904850.1205678441Preparation of Nitrogen-Doped Graphene Aerogel/Epoxy Nanocomposites and Experimental Study of Mechanical Propertiesali kordi0saeed adibnazari1Ali Imam2mohammad najafi3maryam ghasabzadeh saryazdi4Department of Mechanical Engineering, Science and Research Branch, Islamic Azad University, Tehran, IranDepartment of Aerospace Engineering, Sharif University of Technology, Tehran, IranDepartment of Mechanical Engineering, Science and Research Branch, Islamic Azad University, Tehran, IranDepartment of Mechanical Engineering, Science and Research Branch, Islamic Azad University, Tehran, IranVehicle Technology Research Institute, Amirkabir University of Technology, Tehran, IranNitrogen-Doped Graphene Aerogel (N-GA) nanomaterials can significantly improve the functional efficiency of polymer composites due to its three-dimensional structure and suitable physical properties. The preparation process affects the performance improvement. In this study, the effect of preparation method and the mechanisms affecting the strength behavior of Nitrogen-doped Graphene Aerogel/Epoxy (N-GA/E) nanocomposites was investigated. For this purpose, nanoparticles of Graphene Oxide (GO) were produced using Hummers’ method; then, the N-GA was synthesized using the hydrothermal method and the freeze-drying process. The characterization experiments were used in order to confirm the structure and quality of the synthesized nanomaterials. Then, specimens of nanocomposite were prepared by adding weight percentages of 0.05, 0.1, 0.2, 0.5, 1, and 2 from the synthesized N-GA to the epoxy resin. In other preparation processes, N-GA/E nanocomposite specimens were produced using auxiliary solvents. After tensile tests, the best strength performance was observed in the specimens with the preparation process in which acetone solvent was used. The tensile strength and modulus of these nanocomposite specimens have increased by 23% and 20% compared to neat epoxy specimens, respectively. Also, the optimal weight percentage of N-GA nanomaterials for distribution in epoxy is 0.1 wt.%. Microscopic images of the fracture surfaces of the specimens used in the tensile test showed that the placement of N-GA porous plates in epoxy with the creation of the mechanism for micro crack formation led to more energy absorption during the stretching process of the N-GA/E nanocomposites.https://admt.isfahan.iau.ir/article_678441_6660d864407c5fdf6ac0450635af5b68.pdfnitrogen-doped graphene aerogelnanocompositemorphology of fracture surfacestensile properties |
| spellingShingle | ali kordi saeed adibnazari Ali Imam mohammad najafi maryam ghasabzadeh saryazdi Preparation of Nitrogen-Doped Graphene Aerogel/Epoxy Nanocomposites and Experimental Study of Mechanical Properties International Journal of Advanced Design and Manufacturing Technology nitrogen-doped graphene aerogel nanocomposite morphology of fracture surfaces tensile properties |
| title | Preparation of Nitrogen-Doped Graphene Aerogel/Epoxy Nanocomposites and Experimental Study of Mechanical Properties |
| title_full | Preparation of Nitrogen-Doped Graphene Aerogel/Epoxy Nanocomposites and Experimental Study of Mechanical Properties |
| title_fullStr | Preparation of Nitrogen-Doped Graphene Aerogel/Epoxy Nanocomposites and Experimental Study of Mechanical Properties |
| title_full_unstemmed | Preparation of Nitrogen-Doped Graphene Aerogel/Epoxy Nanocomposites and Experimental Study of Mechanical Properties |
| title_short | Preparation of Nitrogen-Doped Graphene Aerogel/Epoxy Nanocomposites and Experimental Study of Mechanical Properties |
| title_sort | preparation of nitrogen doped graphene aerogel epoxy nanocomposites and experimental study of mechanical properties |
| topic | nitrogen-doped graphene aerogel nanocomposite morphology of fracture surfaces tensile properties |
| url | https://admt.isfahan.iau.ir/article_678441_6660d864407c5fdf6ac0450635af5b68.pdf |
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