Microstructural, mechanical, and physicochemical behaviours of alkali pre-treated oil palm stalk fibres
The effect of alkali pre-treatment (sodium hydroxide, NaOH) on the microstructural, mechanical, and chemical composition of oil palm stalk fibres (OPSF) is reported for future bioconversion processes. The OPSF was pre-treated with various concentrations of NaOH (5, 10, 20, 30, and 40% w/v). Scanning...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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North Carolina University
2015
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| Online Access: | http://psasir.upm.edu.my/id/eprint/45477/ http://psasir.upm.edu.my/id/eprint/45477/1/PALM.pdf |
| _version_ | 1848850508854329344 |
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| author | Baharuddin, Azhari Samsu Mohammed, Mohd Afandi P. Mat Lazim, Azwan Loo, Yu Xiang Hanipah, Suhaiza Hanim |
| author_facet | Baharuddin, Azhari Samsu Mohammed, Mohd Afandi P. Mat Lazim, Azwan Loo, Yu Xiang Hanipah, Suhaiza Hanim |
| author_sort | Baharuddin, Azhari Samsu |
| building | UPM Institutional Repository |
| collection | Online Access |
| description | The effect of alkali pre-treatment (sodium hydroxide, NaOH) on the microstructural, mechanical, and chemical composition of oil palm stalk fibres (OPSF) is reported for future bioconversion processes. The OPSF was pre-treated with various concentrations of NaOH (5, 10, 20, 30, and 40% w/v). Scanning electron microscopy analysis revealed that 5% w/v alkali concentration caused complete removal of silica bodies and waxy layers, whereas pronounced degradation of the fibres occurred at 40% w/v NaOH concentration. Mechanical test results showed that the maximum elastic modulus of untreated OPSF was 2.5 GPa and the modulus was not sensitive to alkali concentration. Permanent set (plastic strain) and viscoelastic behaviours of OPSF were observed from the loading-unloading and stress relaxation test results, respectively. Agreement was observed between the Prony series viscoelastic model and test results, which provided further evidence of the viscoelastic behaviour of OPSF. |
| first_indexed | 2025-11-15T10:07:25Z |
| format | Article |
| id | upm-45477 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T10:07:25Z |
| publishDate | 2015 |
| publisher | North Carolina University |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | upm-454772021-01-23T21:29:30Z http://psasir.upm.edu.my/id/eprint/45477/ Microstructural, mechanical, and physicochemical behaviours of alkali pre-treated oil palm stalk fibres Baharuddin, Azhari Samsu Mohammed, Mohd Afandi P. Mat Lazim, Azwan Loo, Yu Xiang Hanipah, Suhaiza Hanim The effect of alkali pre-treatment (sodium hydroxide, NaOH) on the microstructural, mechanical, and chemical composition of oil palm stalk fibres (OPSF) is reported for future bioconversion processes. The OPSF was pre-treated with various concentrations of NaOH (5, 10, 20, 30, and 40% w/v). Scanning electron microscopy analysis revealed that 5% w/v alkali concentration caused complete removal of silica bodies and waxy layers, whereas pronounced degradation of the fibres occurred at 40% w/v NaOH concentration. Mechanical test results showed that the maximum elastic modulus of untreated OPSF was 2.5 GPa and the modulus was not sensitive to alkali concentration. Permanent set (plastic strain) and viscoelastic behaviours of OPSF were observed from the loading-unloading and stress relaxation test results, respectively. Agreement was observed between the Prony series viscoelastic model and test results, which provided further evidence of the viscoelastic behaviour of OPSF. North Carolina University 2015 Article PeerReviewed text en http://psasir.upm.edu.my/id/eprint/45477/1/PALM.pdf Baharuddin, Azhari Samsu and Mohammed, Mohd Afandi P. and Mat Lazim, Azwan and Loo, Yu Xiang and Hanipah, Suhaiza Hanim (2015) Microstructural, mechanical, and physicochemical behaviours of alkali pre-treated oil palm stalk fibres. Bioresources, 10 (2). pp. 2783-2796. ISSN 1930-2126 https://ojs.cnr.ncsu.edu/index.php/BioRes/article/view/BioRes_10_2_2783_Yu_Microstructural_Alkali_Oil_Palm/3445 |
| spellingShingle | Baharuddin, Azhari Samsu Mohammed, Mohd Afandi P. Mat Lazim, Azwan Loo, Yu Xiang Hanipah, Suhaiza Hanim Microstructural, mechanical, and physicochemical behaviours of alkali pre-treated oil palm stalk fibres |
| title | Microstructural, mechanical, and physicochemical behaviours of alkali pre-treated oil palm stalk fibres |
| title_full | Microstructural, mechanical, and physicochemical behaviours of alkali pre-treated oil palm stalk fibres |
| title_fullStr | Microstructural, mechanical, and physicochemical behaviours of alkali pre-treated oil palm stalk fibres |
| title_full_unstemmed | Microstructural, mechanical, and physicochemical behaviours of alkali pre-treated oil palm stalk fibres |
| title_short | Microstructural, mechanical, and physicochemical behaviours of alkali pre-treated oil palm stalk fibres |
| title_sort | microstructural, mechanical, and physicochemical behaviours of alkali pre-treated oil palm stalk fibres |
| url | http://psasir.upm.edu.my/id/eprint/45477/ http://psasir.upm.edu.my/id/eprint/45477/ http://psasir.upm.edu.my/id/eprint/45477/1/PALM.pdf |