Mechanical, morphological, structural and dynamic mechanical properties of alkali treated Ensete stem fibers reinforced unsaturated polyester composites
Present study deals the surface morphology and structural composition analysis of alkali (NaOH) treated 2.5% 5.0% and 7.5 wt% Ensete stem fiber obtained from the Ethiopian Ensete ventricosum plant. Treated Ensete fibers reinforced unsaturated polyester (UP) composites were characterized in terms of...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2019
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| Online Access: | http://psasir.upm.edu.my/id/eprint/81322/ http://psasir.upm.edu.my/id/eprint/81322/1/Mechanical%2C%20morphological%2C%20structural%20and%20dynamic%20mechanical%20properties%20of%20alkali%20treated%20Ensete%20stem%20fibers%20reinforced%20unsaturated%20polyester%20composites.pdf |
| _version_ | 1848859077016289280 |
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| author | Negawo, Tolera A. Polat, Yusuf Buyuknalcaci, Feyza N. Kilic, Ali Saba, Naheed Jawaid, Mohammad |
| author_facet | Negawo, Tolera A. Polat, Yusuf Buyuknalcaci, Feyza N. Kilic, Ali Saba, Naheed Jawaid, Mohammad |
| author_sort | Negawo, Tolera A. |
| building | UPM Institutional Repository |
| collection | Online Access |
| description | Present study deals the surface morphology and structural composition analysis of alkali (NaOH) treated 2.5% 5.0% and 7.5 wt% Ensete stem fiber obtained from the Ethiopian Ensete ventricosum plant. Treated Ensete fibers reinforced unsaturated polyester (UP) composites were characterized in terms of tensile, flexural, surface morphology and dynamic mechanical properties. Mechanical test results revealed that 5.0 wt% alkali treated Ensete fibers/UP composites showed 14.5% and 43.5% increase in flexural strength and Young's modulus respectively, with relative to untreated Ensete fibers/UP composites. Storage and loss modulus value also highest for 5.0 wt% alkali treated Ensete fibers/UP composites. Moreover, a positive shift in glass transition temperature (Tg) of composites after alkali treatment and tensile fracture surface morphology indicates better interfacial interaction in treated Ensete fibers/UP composites. Overall we concluded that 5.0 wt% treated Ensete fibers satisfactorily and effectively improved mechanical, morphological and dynamic properties of UP for various engineered and hi-tech applications. |
| first_indexed | 2025-11-15T12:23:36Z |
| format | Article |
| id | upm-81322 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T12:23:36Z |
| publishDate | 2019 |
| publisher | Elsevier |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | upm-813222021-02-23T18:50:49Z http://psasir.upm.edu.my/id/eprint/81322/ Mechanical, morphological, structural and dynamic mechanical properties of alkali treated Ensete stem fibers reinforced unsaturated polyester composites Negawo, Tolera A. Polat, Yusuf Buyuknalcaci, Feyza N. Kilic, Ali Saba, Naheed Jawaid, Mohammad Present study deals the surface morphology and structural composition analysis of alkali (NaOH) treated 2.5% 5.0% and 7.5 wt% Ensete stem fiber obtained from the Ethiopian Ensete ventricosum plant. Treated Ensete fibers reinforced unsaturated polyester (UP) composites were characterized in terms of tensile, flexural, surface morphology and dynamic mechanical properties. Mechanical test results revealed that 5.0 wt% alkali treated Ensete fibers/UP composites showed 14.5% and 43.5% increase in flexural strength and Young's modulus respectively, with relative to untreated Ensete fibers/UP composites. Storage and loss modulus value also highest for 5.0 wt% alkali treated Ensete fibers/UP composites. Moreover, a positive shift in glass transition temperature (Tg) of composites after alkali treatment and tensile fracture surface morphology indicates better interfacial interaction in treated Ensete fibers/UP composites. Overall we concluded that 5.0 wt% treated Ensete fibers satisfactorily and effectively improved mechanical, morphological and dynamic properties of UP for various engineered and hi-tech applications. Elsevier 2019 Article PeerReviewed text en http://psasir.upm.edu.my/id/eprint/81322/1/Mechanical%2C%20morphological%2C%20structural%20and%20dynamic%20mechanical%20properties%20of%20alkali%20treated%20Ensete%20stem%20fibers%20reinforced%20unsaturated%20polyester%20composites.pdf Negawo, Tolera A. and Polat, Yusuf and Buyuknalcaci, Feyza N. and Kilic, Ali and Saba, Naheed and Jawaid, Mohammad (2019) Mechanical, morphological, structural and dynamic mechanical properties of alkali treated Ensete stem fibers reinforced unsaturated polyester composites. Composite Structures, 207. pp. 589-597. ISSN 0263-8223 https://www.sciencedirect.com/science/article/abs/pii/S0263822318322438 10.1016/j.compstruct.2018.09.043 |
| spellingShingle | Negawo, Tolera A. Polat, Yusuf Buyuknalcaci, Feyza N. Kilic, Ali Saba, Naheed Jawaid, Mohammad Mechanical, morphological, structural and dynamic mechanical properties of alkali treated Ensete stem fibers reinforced unsaturated polyester composites |
| title | Mechanical, morphological, structural and dynamic mechanical properties of alkali treated Ensete stem fibers reinforced unsaturated polyester composites |
| title_full | Mechanical, morphological, structural and dynamic mechanical properties of alkali treated Ensete stem fibers reinforced unsaturated polyester composites |
| title_fullStr | Mechanical, morphological, structural and dynamic mechanical properties of alkali treated Ensete stem fibers reinforced unsaturated polyester composites |
| title_full_unstemmed | Mechanical, morphological, structural and dynamic mechanical properties of alkali treated Ensete stem fibers reinforced unsaturated polyester composites |
| title_short | Mechanical, morphological, structural and dynamic mechanical properties of alkali treated Ensete stem fibers reinforced unsaturated polyester composites |
| title_sort | mechanical, morphological, structural and dynamic mechanical properties of alkali treated ensete stem fibers reinforced unsaturated polyester composites |
| url | http://psasir.upm.edu.my/id/eprint/81322/ http://psasir.upm.edu.my/id/eprint/81322/ http://psasir.upm.edu.my/id/eprint/81322/ http://psasir.upm.edu.my/id/eprint/81322/1/Mechanical%2C%20morphological%2C%20structural%20and%20dynamic%20mechanical%20properties%20of%20alkali%20treated%20Ensete%20stem%20fibers%20reinforced%20unsaturated%20polyester%20composites.pdf |