Impact modified PLA-hydroxyapatite composites – Thermo-mechanical properties
Synergistic composites from poly(lactic acid) (PLA) and hydroxyapatite (HA) hold great potential for load bearing applications. In this study, PLA-HA composites were produced through extrusion, and test specimens were subsequently prepared through injection molding. Impact properties of the composit...
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| Format: | Article |
| Language: | English |
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Elsevier Ltd
2018
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| Online Access: | http://umpir.ump.edu.my/id/eprint/21603/ http://umpir.ump.edu.my/id/eprint/21603/1/Impact%20modified%20PLA-hydroxyapatite%20composites%20%E2%80%93%20Thermo-mechanical%20properties.pdf |
| _version_ | 1848821389090357248 |
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| author | Akindoyo, John Olabode Beg, M. D. H. Suriati, Ghazali Heim, Hans P. Feldmann, Maik |
| author_facet | Akindoyo, John Olabode Beg, M. D. H. Suriati, Ghazali Heim, Hans P. Feldmann, Maik |
| author_sort | Akindoyo, John Olabode |
| building | UMP Institutional Repository |
| collection | Online Access |
| description | Synergistic composites from poly(lactic acid) (PLA) and hydroxyapatite (HA) hold great potential for load bearing applications. In this study, PLA-HA composites were produced through extrusion, and test specimens were subsequently prepared through injection molding. Impact properties of the composite was improved by incorporating different amount (0 to 15 wt%) of Biomax® Strong 120 (BS) impact modifier. The mechanical, thermal, morphological and dynamic mechanical properties of the resulting composite were investigated. Likewise, chemical interactions during blending were investigated through Fourier transforms infrared spectroscopy. Incorporation of BS decreased the crystallization activities at the PLA-HA interface, but with a right shift in crystallization temperature as the BS content increases. Also with increasing BS content, mechanical properties of the PLA-HA composite were reduced. However there is an obvious increment in impact strength (78%) and elongation at break (206%). The composite containing 5 wt% BS content presents the best compromise among the investigated properties. |
| first_indexed | 2025-11-15T02:24:34Z |
| format | Article |
| id | ump-21603 |
| institution | Universiti Malaysia Pahang |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T02:24:34Z |
| publishDate | 2018 |
| publisher | Elsevier Ltd |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | ump-216032019-09-10T02:58:31Z http://umpir.ump.edu.my/id/eprint/21603/ Impact modified PLA-hydroxyapatite composites – Thermo-mechanical properties Akindoyo, John Olabode Beg, M. D. H. Suriati, Ghazali Heim, Hans P. Feldmann, Maik TP Chemical technology Synergistic composites from poly(lactic acid) (PLA) and hydroxyapatite (HA) hold great potential for load bearing applications. In this study, PLA-HA composites were produced through extrusion, and test specimens were subsequently prepared through injection molding. Impact properties of the composite was improved by incorporating different amount (0 to 15 wt%) of Biomax® Strong 120 (BS) impact modifier. The mechanical, thermal, morphological and dynamic mechanical properties of the resulting composite were investigated. Likewise, chemical interactions during blending were investigated through Fourier transforms infrared spectroscopy. Incorporation of BS decreased the crystallization activities at the PLA-HA interface, but with a right shift in crystallization temperature as the BS content increases. Also with increasing BS content, mechanical properties of the PLA-HA composite were reduced. However there is an obvious increment in impact strength (78%) and elongation at break (206%). The composite containing 5 wt% BS content presents the best compromise among the investigated properties. Elsevier Ltd 2018-04 Article PeerReviewed pdf en http://umpir.ump.edu.my/id/eprint/21603/1/Impact%20modified%20PLA-hydroxyapatite%20composites%20%E2%80%93%20Thermo-mechanical%20properties.pdf Akindoyo, John Olabode and Beg, M. D. H. and Suriati, Ghazali and Heim, Hans P. and Feldmann, Maik (2018) Impact modified PLA-hydroxyapatite composites – Thermo-mechanical properties. Composites Part A: Applied Science and Manufacturing, 107. pp. 326-333. ISSN 1359-835X. (Published) https://www.sciencedirect.com/science/article/pii/S1359835X18300174 10.1016/j.compositesa.2018.01.017 |
| spellingShingle | TP Chemical technology Akindoyo, John Olabode Beg, M. D. H. Suriati, Ghazali Heim, Hans P. Feldmann, Maik Impact modified PLA-hydroxyapatite composites – Thermo-mechanical properties |
| title | Impact modified PLA-hydroxyapatite composites – Thermo-mechanical properties |
| title_full | Impact modified PLA-hydroxyapatite composites – Thermo-mechanical properties |
| title_fullStr | Impact modified PLA-hydroxyapatite composites – Thermo-mechanical properties |
| title_full_unstemmed | Impact modified PLA-hydroxyapatite composites – Thermo-mechanical properties |
| title_short | Impact modified PLA-hydroxyapatite composites – Thermo-mechanical properties |
| title_sort | impact modified pla-hydroxyapatite composites – thermo-mechanical properties |
| topic | TP Chemical technology |
| url | http://umpir.ump.edu.my/id/eprint/21603/ http://umpir.ump.edu.my/id/eprint/21603/ http://umpir.ump.edu.my/id/eprint/21603/ http://umpir.ump.edu.my/id/eprint/21603/1/Impact%20modified%20PLA-hydroxyapatite%20composites%20%E2%80%93%20Thermo-mechanical%20properties.pdf |