Influence of carboxyl functionalized MWCNT loading on the thermal stability and long-term water uptake behavior in tri-layered jute FRCs
Investigations on the influence of carboxyl functionalized MWCNTs on epoxy composites solely reinforced by jute fiber are very scarce. Therefore, an attempt has been made to analyze the long-term moisture absorption behavior and thermal stability at the high-temperature range (30 °C-1200 °C) in jute...
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2024-12-01
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| author | B.M. Saif Hassan Tawsif Tazwar Maisha Farzana Antora Debanan Bhadra |
| author_facet | B.M. Saif Hassan Tawsif Tazwar Maisha Farzana Antora Debanan Bhadra |
| author_sort | B.M. Saif |
| collection | DOAJ |
| description | Investigations on the influence of carboxyl functionalized MWCNTs on epoxy composites solely reinforced by jute fiber are very scarce. Therefore, an attempt has been made to analyze the long-term moisture absorption behavior and thermal stability at the high-temperature range (30 °C-1200 °C) in jute FRC filled with varying amounts of functionalized MWCNTs (wt. %). Jute fibers derived from needle-punched jute mats were chemically pre-treated and were studied using Fourier Transform Infrared Spectroscopy (FT-IR). The MWCNTs were ultrasonicated to ensure uniform dispersion in the epoxy matrix. Scanning Electron Microscopy (SEM) was performed to observe the fiber, matrix, and filler interactions. As the composites were fabricated using the hand layup technique, air bubbles got entrapped into the specimens for which the void content was also reported. At a substantial saturation state (weight change <5 mg), the composite with 1 % MWCNT absorbed the most water. However, at higher CNT loadings, MWCNT agglomeration stopped water uptake. These results suggest that careful adjustment of MWCNT loading is necessary to balance hydrophilicity and porosity, thereby fine-tuning the water absorption of jute FRC. Thermogravimetric analysis (TGA) has been used in the study to assess the thermal behavior of the composites, indicating that adding MWCNTs at about 1 wt. % CNT loading can increase the thermal stability of jute fiber composites. An elevated concentration of CNTs facilitates agglomeration, impeding moisture absorption, whereas the incorporation of 1 % CNTs improves thermal stability. Consequently, a CNT concentration of 1.5 % is recommended. |
| format | Article |
| id | doaj-art-c54aa9a966d24650a675bbd4cfeffd5f |
| institution | OA Journals |
| issn | 2590-1230 |
| language | English |
| publishDate | 2024-12-01 |
| publisher | Elsevier |
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| series | Results in Engineering |
| spelling | doaj-art-c54aa9a966d24650a675bbd4cfeffd5f2025-08-20T01:58:16ZengElsevierResults in Engineering2590-12302024-12-012410328710.1016/j.rineng.2024.103287Influence of carboxyl functionalized MWCNT loading on the thermal stability and long-term water uptake behavior in tri-layered jute FRCsB.M. Saif0Hassan Tawsif Tazwar1Maisha Farzana Antora2Debanan Bhadra3Corresponding author.; Department of Aeronautical Engineering, Military Institute of Science and Technology (MIST), Dhaka 1216, Bangladesh; Department of Aerospace Engineering, Iowa State UniversityDepartment of Aeronautical Engineering, Military Institute of Science and Technology (MIST), Dhaka 1216, Bangladesh; Department of Aerospace Engineering, Iowa State UniversityDepartment of Aeronautical Engineering, Military Institute of Science and Technology (MIST), Dhaka 1216, Bangladesh; Department of Aerospace Engineering, Iowa State UniversityDepartment of Aeronautical Engineering, Military Institute of Science and Technology (MIST), Dhaka 1216, Bangladesh; Department of Aerospace Engineering, Iowa State UniversityInvestigations on the influence of carboxyl functionalized MWCNTs on epoxy composites solely reinforced by jute fiber are very scarce. Therefore, an attempt has been made to analyze the long-term moisture absorption behavior and thermal stability at the high-temperature range (30 °C-1200 °C) in jute FRC filled with varying amounts of functionalized MWCNTs (wt. %). Jute fibers derived from needle-punched jute mats were chemically pre-treated and were studied using Fourier Transform Infrared Spectroscopy (FT-IR). The MWCNTs were ultrasonicated to ensure uniform dispersion in the epoxy matrix. Scanning Electron Microscopy (SEM) was performed to observe the fiber, matrix, and filler interactions. As the composites were fabricated using the hand layup technique, air bubbles got entrapped into the specimens for which the void content was also reported. At a substantial saturation state (weight change <5 mg), the composite with 1 % MWCNT absorbed the most water. However, at higher CNT loadings, MWCNT agglomeration stopped water uptake. These results suggest that careful adjustment of MWCNT loading is necessary to balance hydrophilicity and porosity, thereby fine-tuning the water absorption of jute FRC. Thermogravimetric analysis (TGA) has been used in the study to assess the thermal behavior of the composites, indicating that adding MWCNTs at about 1 wt. % CNT loading can increase the thermal stability of jute fiber composites. An elevated concentration of CNTs facilitates agglomeration, impeding moisture absorption, whereas the incorporation of 1 % CNTs improves thermal stability. Consequently, a CNT concentration of 1.5 % is recommended.http://www.sciencedirect.com/science/article/pii/S259012302401541XJute fiberCarbon nanotubesAlkaline treatmentWater absorptionThermal stability, Thermogravimetric Analysis (TGA)Fourier Transform Infrared Spectroscopy (FT-IR) |
| spellingShingle | B.M. Saif Hassan Tawsif Tazwar Maisha Farzana Antora Debanan Bhadra Influence of carboxyl functionalized MWCNT loading on the thermal stability and long-term water uptake behavior in tri-layered jute FRCs Results in Engineering Jute fiber Carbon nanotubes Alkaline treatment Water absorption Thermal stability, Thermogravimetric Analysis (TGA) Fourier Transform Infrared Spectroscopy (FT-IR) |
| title | Influence of carboxyl functionalized MWCNT loading on the thermal stability and long-term water uptake behavior in tri-layered jute FRCs |
| title_full | Influence of carboxyl functionalized MWCNT loading on the thermal stability and long-term water uptake behavior in tri-layered jute FRCs |
| title_fullStr | Influence of carboxyl functionalized MWCNT loading on the thermal stability and long-term water uptake behavior in tri-layered jute FRCs |
| title_full_unstemmed | Influence of carboxyl functionalized MWCNT loading on the thermal stability and long-term water uptake behavior in tri-layered jute FRCs |
| title_short | Influence of carboxyl functionalized MWCNT loading on the thermal stability and long-term water uptake behavior in tri-layered jute FRCs |
| title_sort | influence of carboxyl functionalized mwcnt loading on the thermal stability and long term water uptake behavior in tri layered jute frcs |
| topic | Jute fiber Carbon nanotubes Alkaline treatment Water absorption Thermal stability, Thermogravimetric Analysis (TGA) Fourier Transform Infrared Spectroscopy (FT-IR) |
| url | http://www.sciencedirect.com/science/article/pii/S259012302401541X |
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