Characterisation of Miswak (Salvadora persica) fibre-reinforced polylactic acid composites prepared by twin screw extrusion
Processing of polymer composites employing fibres from sustainable sources as reinforcement has drastically grown in recent years. This research used Miswak fibres (MF) and polylactic acid (PLA) as the main materials for composite processing. Natural fibres typically include a hydroxyl group (-OH),...
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| Format: | Article |
| Language: | English |
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Universiti Putra Malaysia Press
2024
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| Online Access: | http://psasir.upm.edu.my/id/eprint/114715/ http://psasir.upm.edu.my/id/eprint/114715/1/114715.pdf |
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| author | Shafi, Ayu Rafiqah Abdan, Khalina Salit @ Sinon, Mohd Sapuan Ali, Radzi |
| author_facet | Shafi, Ayu Rafiqah Abdan, Khalina Salit @ Sinon, Mohd Sapuan Ali, Radzi |
| author_sort | Shafi, Ayu Rafiqah |
| building | UPM Institutional Repository |
| collection | Online Access |
| description | Processing of polymer composites employing fibres from sustainable sources as reinforcement has drastically grown in recent years. This research used Miswak fibres (MF) and polylactic acid (PLA) as the main materials for composite processing. Natural fibres typically include a hydroxyl group (-OH), which makes them hydrophilic. In contrast, the hydrophobic nature of polymer matrices causes them to naturally repel water. This problem was resolved by chemically altering the surface of natural fibres using a 2 wt% sodium hydroxide (NaOH) solution. In this paper, the effect of alkaline treatment has been proven by performing chemical analysis, tensile properties, thermogravimetric analysis (TGA), and differential scanning calorimetry (DSC) to analyse the influence of treated MF content on composite characteristics. The results revealed that biocomposites with modified miswak fibres exhibited better properties than untreated miswak fibres-reinforced polymer biocomposites. Treated MF/PLA composites showed an increase in tensile strength of 52.9% and tensile modulus of 8.16%. From the chemical composition test, lignin composition was reduced from 5.09% to 3.06% and hemicellulose from 28.12 to 10.62% after MF was treated. Meanwhile, thermal properties for both TGA and DSC |
| first_indexed | 2025-11-15T14:22:46Z |
| format | Article |
| id | upm-114715 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T14:22:46Z |
| publishDate | 2024 |
| publisher | Universiti Putra Malaysia Press |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | upm-1147152025-01-27T03:40:42Z http://psasir.upm.edu.my/id/eprint/114715/ Characterisation of Miswak (Salvadora persica) fibre-reinforced polylactic acid composites prepared by twin screw extrusion Shafi, Ayu Rafiqah Abdan, Khalina Salit @ Sinon, Mohd Sapuan Ali, Radzi Processing of polymer composites employing fibres from sustainable sources as reinforcement has drastically grown in recent years. This research used Miswak fibres (MF) and polylactic acid (PLA) as the main materials for composite processing. Natural fibres typically include a hydroxyl group (-OH), which makes them hydrophilic. In contrast, the hydrophobic nature of polymer matrices causes them to naturally repel water. This problem was resolved by chemically altering the surface of natural fibres using a 2 wt% sodium hydroxide (NaOH) solution. In this paper, the effect of alkaline treatment has been proven by performing chemical analysis, tensile properties, thermogravimetric analysis (TGA), and differential scanning calorimetry (DSC) to analyse the influence of treated MF content on composite characteristics. The results revealed that biocomposites with modified miswak fibres exhibited better properties than untreated miswak fibres-reinforced polymer biocomposites. Treated MF/PLA composites showed an increase in tensile strength of 52.9% and tensile modulus of 8.16%. From the chemical composition test, lignin composition was reduced from 5.09% to 3.06% and hemicellulose from 28.12 to 10.62% after MF was treated. Meanwhile, thermal properties for both TGA and DSC Universiti Putra Malaysia Press 2024-10-30 Article PeerReviewed text en http://psasir.upm.edu.my/id/eprint/114715/1/114715.pdf Shafi, Ayu Rafiqah and Abdan, Khalina and Salit @ Sinon, Mohd Sapuan and Ali, Radzi (2024) Characterisation of Miswak (Salvadora persica) fibre-reinforced polylactic acid composites prepared by twin screw extrusion. Pertanika Journal of Science and Technology, 32 (spec.5). pp. 21-40. ISSN 0128-7680; eISSN: 2231-8526 http://www.pertanika.upm.edu.my/pjst/browse/special-issue?article=JST(S)-0628-2024 10.47836/pjst.32.S5.02 |
| spellingShingle | Shafi, Ayu Rafiqah Abdan, Khalina Salit @ Sinon, Mohd Sapuan Ali, Radzi Characterisation of Miswak (Salvadora persica) fibre-reinforced polylactic acid composites prepared by twin screw extrusion |
| title | Characterisation of Miswak (Salvadora persica) fibre-reinforced polylactic acid composites prepared by twin screw extrusion |
| title_full | Characterisation of Miswak (Salvadora persica) fibre-reinforced polylactic acid composites prepared by twin screw extrusion |
| title_fullStr | Characterisation of Miswak (Salvadora persica) fibre-reinforced polylactic acid composites prepared by twin screw extrusion |
| title_full_unstemmed | Characterisation of Miswak (Salvadora persica) fibre-reinforced polylactic acid composites prepared by twin screw extrusion |
| title_short | Characterisation of Miswak (Salvadora persica) fibre-reinforced polylactic acid composites prepared by twin screw extrusion |
| title_sort | characterisation of miswak (salvadora persica) fibre-reinforced polylactic acid composites prepared by twin screw extrusion |
| url | http://psasir.upm.edu.my/id/eprint/114715/ http://psasir.upm.edu.my/id/eprint/114715/ http://psasir.upm.edu.my/id/eprint/114715/ http://psasir.upm.edu.my/id/eprint/114715/1/114715.pdf |