Effect of Alkaline Treatment on the Physical, Chemical, and Mechanical Properties of Coconut Palm Nucifera Rachis Fibres
In this study, an alkaline treatment of raw fibers obtained from the rachis of the coconut palm nucifera (FRC) has been performed, with the aim of using the derived composites as cladding elements in the field of civil engineering. These raw fibers are structurally fragile, which limits their use. F...
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Taylor & Francis Group
2025-12-01
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| Series: | Journal of Natural Fibers |
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| Online Access: | https://www.tandfonline.com/doi/10.1080/15440478.2024.2449439 |
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| author | Gallus Eric Atangana Theodore Tchotang Achille GnassirI Wedaïna Yves Roland Olembe Aminou Djaligue Ndoudja Mahondé |
| author_facet | Gallus Eric Atangana Theodore Tchotang Achille GnassirI Wedaïna Yves Roland Olembe Aminou Djaligue Ndoudja Mahondé |
| author_sort | Gallus Eric Atangana |
| collection | DOAJ |
| description | In this study, an alkaline treatment of raw fibers obtained from the rachis of the coconut palm nucifera (FRC) has been performed, with the aim of using the derived composites as cladding elements in the field of civil engineering. These raw fibers are structurally fragile, which limits their use. Fibers obtained by water retting have been treated with different concentrations of 1%, 3%, and 5% NaOH. The crystallographic structure and chemical composition are determined using X-ray diffraction techniques. The average values obtained for lignin, hemicellulose, and cellulose read 33.46%, 31.85%, and 33.30%, respectively, for the raw fiber (FRC) then 21.66%, 29.1%, and 49.04% for the treated fiber (FRC3/120). The density of the fiber is between 0.36 and 1.09. Analysis of mechanical properties shows their significant improvement with alkaline treatment. The Young’s modulus and the ultimate stress read, respectively, 15,144.30 Mpa and 927.06 Mpa for both samples. Those results make the treated fiber a good candidate for bio composite used in wet environment because of its strength and resistance to water absorption. Further studies can explore the production of composite reinforced with treated fibers, and then evaluate their efficiency in maritime environment. |
| format | Article |
| id | doaj-art-bcafaf93cc71488a8d860e349bb94055 |
| institution | Kabale University |
| issn | 1544-0478 1544-046X |
| language | English |
| publishDate | 2025-12-01 |
| publisher | Taylor & Francis Group |
| record_format | Article |
| series | Journal of Natural Fibers |
| spelling | doaj-art-bcafaf93cc71488a8d860e349bb940552025-01-28T13:53:00ZengTaylor & Francis GroupJournal of Natural Fibers1544-04781544-046X2025-12-0122110.1080/15440478.2024.2449439Effect of Alkaline Treatment on the Physical, Chemical, and Mechanical Properties of Coconut Palm Nucifera Rachis FibresGallus Eric Atangana0Theodore Tchotang1Achille GnassirI Wedaïna2Yves Roland Olembe3Aminou Djaligue4Ndoudja Mahondé5Department of Industrial and Mechanical Engineering, National Advanced School on Engineering of Yaounde, Yaoundé, CameroonDepartment of Industrial and Mechanical Engineering, National Advanced School on Engineering of Yaounde, Yaoundé, CameroonLaboratory of Mechanics, Materials, and Medialization, Faculty of sciences, Physics Application and Engineering, Ngaoundere University, Adamaoua, CameroonDepartment of Industrial and Mechanical Engineering, National Advanced School on Engineering of Yaounde, Yaoundé, CameroonDepartment of Industrial and Mechanical Engineering, National Advanced School on Engineering of Yaounde, Yaoundé, CameroonDepartment of Industrial and Mechanical Engineering, National Advanced School on Engineering of Yaounde, Yaoundé, CameroonIn this study, an alkaline treatment of raw fibers obtained from the rachis of the coconut palm nucifera (FRC) has been performed, with the aim of using the derived composites as cladding elements in the field of civil engineering. These raw fibers are structurally fragile, which limits their use. Fibers obtained by water retting have been treated with different concentrations of 1%, 3%, and 5% NaOH. The crystallographic structure and chemical composition are determined using X-ray diffraction techniques. The average values obtained for lignin, hemicellulose, and cellulose read 33.46%, 31.85%, and 33.30%, respectively, for the raw fiber (FRC) then 21.66%, 29.1%, and 49.04% for the treated fiber (FRC3/120). The density of the fiber is between 0.36 and 1.09. Analysis of mechanical properties shows their significant improvement with alkaline treatment. The Young’s modulus and the ultimate stress read, respectively, 15,144.30 Mpa and 927.06 Mpa for both samples. Those results make the treated fiber a good candidate for bio composite used in wet environment because of its strength and resistance to water absorption. Further studies can explore the production of composite reinforced with treated fibers, and then evaluate their efficiency in maritime environment.https://www.tandfonline.com/doi/10.1080/15440478.2024.2449439Rachisalkaline treatmentcoconut palmhydrophilichemicelluloselignin |
| spellingShingle | Gallus Eric Atangana Theodore Tchotang Achille GnassirI Wedaïna Yves Roland Olembe Aminou Djaligue Ndoudja Mahondé Effect of Alkaline Treatment on the Physical, Chemical, and Mechanical Properties of Coconut Palm Nucifera Rachis Fibres Journal of Natural Fibers Rachis alkaline treatment coconut palm hydrophilic hemicellulose lignin |
| title | Effect of Alkaline Treatment on the Physical, Chemical, and Mechanical Properties of Coconut Palm Nucifera Rachis Fibres |
| title_full | Effect of Alkaline Treatment on the Physical, Chemical, and Mechanical Properties of Coconut Palm Nucifera Rachis Fibres |
| title_fullStr | Effect of Alkaline Treatment on the Physical, Chemical, and Mechanical Properties of Coconut Palm Nucifera Rachis Fibres |
| title_full_unstemmed | Effect of Alkaline Treatment on the Physical, Chemical, and Mechanical Properties of Coconut Palm Nucifera Rachis Fibres |
| title_short | Effect of Alkaline Treatment on the Physical, Chemical, and Mechanical Properties of Coconut Palm Nucifera Rachis Fibres |
| title_sort | effect of alkaline treatment on the physical chemical and mechanical properties of coconut palm nucifera rachis fibres |
| topic | Rachis alkaline treatment coconut palm hydrophilic hemicellulose lignin |
| url | https://www.tandfonline.com/doi/10.1080/15440478.2024.2449439 |
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