Epoxidized vegetable oils plasticized poly(lactic acid) biocomposites: mechanical, thermal and morphology properties
Plasticized poly(lactic acid) PLA with epoxidized vegetable oils (EVO) were prepared using a melt blending method to improve the ductility of PLA. The plasticization of the PLA with EVO lowers the Tg as well as cold-crystallization temperature. The tensile properties demonstrated that the addition o...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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MDPI
2014
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| Online Access: | http://psasir.upm.edu.my/id/eprint/37484/1/37484.pdf |
| _version_ | 1825949043480592384 |
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| author | Chieng, Buong Woei Ibrahim, Nor Azowa Then, Yoon Yee Loo, Yuet Ying |
| author_facet | Chieng, Buong Woei Ibrahim, Nor Azowa Then, Yoon Yee Loo, Yuet Ying |
| author_sort | Chieng, Buong Woei |
| collection | UPM |
| description | Plasticized poly(lactic acid) PLA with epoxidized vegetable oils (EVO) were prepared using a melt blending method to improve the ductility of PLA. The plasticization of the PLA with EVO lowers the Tg as well as cold-crystallization temperature. The tensile properties demonstrated that the addition of EVO to PLA led to an increase of elongation at break, but a decrease of tensile modulus. Plasticized PLA showed improvement in the elongation at break by 2058% and 4060% with the addition of 5 wt % epoxidized palm oil (EPO) and mixture of epoxidized palm oil and soybean oil (EPSO), respectively. An increase in the tensile strength was also observed in the plasticized PLA with 1 wt % EPO and EPSO. The use of EVO increases the mobility of the polymeric chains, thereby improving the flexibility and plastic deformation of PLA. The SEM micrograph of the plasticized PLA showed good compatible morphologies without voids resulting from good interfacial adhesion between PLA and EVO. Based on the results of this study, EVO may be used as an environmentally friendly plasticizer that can improve the overall properties of PLA. |
| first_indexed | 2024-03-06T08:38:30Z |
| format | Article |
| id | upm.eprints-37484 |
| institution | Universiti Putra Malaysia |
| language | English |
| last_indexed | 2024-03-06T08:38:30Z |
| publishDate | 2014 |
| publisher | MDPI |
| record_format | dspace |
| spelling | upm.eprints-374842015-12-16T08:32:44Z http://psasir.upm.edu.my/id/eprint/37484/ Epoxidized vegetable oils plasticized poly(lactic acid) biocomposites: mechanical, thermal and morphology properties Chieng, Buong Woei Ibrahim, Nor Azowa Then, Yoon Yee Loo, Yuet Ying Plasticized poly(lactic acid) PLA with epoxidized vegetable oils (EVO) were prepared using a melt blending method to improve the ductility of PLA. The plasticization of the PLA with EVO lowers the Tg as well as cold-crystallization temperature. The tensile properties demonstrated that the addition of EVO to PLA led to an increase of elongation at break, but a decrease of tensile modulus. Plasticized PLA showed improvement in the elongation at break by 2058% and 4060% with the addition of 5 wt % epoxidized palm oil (EPO) and mixture of epoxidized palm oil and soybean oil (EPSO), respectively. An increase in the tensile strength was also observed in the plasticized PLA with 1 wt % EPO and EPSO. The use of EVO increases the mobility of the polymeric chains, thereby improving the flexibility and plastic deformation of PLA. The SEM micrograph of the plasticized PLA showed good compatible morphologies without voids resulting from good interfacial adhesion between PLA and EVO. Based on the results of this study, EVO may be used as an environmentally friendly plasticizer that can improve the overall properties of PLA. MDPI 2014 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/37484/1/37484.pdf Chieng, Buong Woei and Ibrahim, Nor Azowa and Then, Yoon Yee and Loo, Yuet Ying (2014) Epoxidized vegetable oils plasticized poly(lactic acid) biocomposites: mechanical, thermal and morphology properties. Molecules, 19 (10). pp. 16024-16038. ISSN 1420-3049 http://www.mdpi.com/1420-3049/19/10/16024 10.3390/molecules191016024 |
| spellingShingle | Chieng, Buong Woei Ibrahim, Nor Azowa Then, Yoon Yee Loo, Yuet Ying Epoxidized vegetable oils plasticized poly(lactic acid) biocomposites: mechanical, thermal and morphology properties |
| title | Epoxidized vegetable oils plasticized poly(lactic acid) biocomposites: mechanical, thermal and morphology properties |
| title_full | Epoxidized vegetable oils plasticized poly(lactic acid) biocomposites: mechanical, thermal and morphology properties |
| title_fullStr | Epoxidized vegetable oils plasticized poly(lactic acid) biocomposites: mechanical, thermal and morphology properties |
| title_full_unstemmed | Epoxidized vegetable oils plasticized poly(lactic acid) biocomposites: mechanical, thermal and morphology properties |
| title_short | Epoxidized vegetable oils plasticized poly(lactic acid) biocomposites: mechanical, thermal and morphology properties |
| title_sort | epoxidized vegetable oils plasticized poly lactic acid biocomposites mechanical thermal and morphology properties |
| url | http://psasir.upm.edu.my/id/eprint/37484/1/37484.pdf |
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