Mohd Shaiful Zaidi, Mat Desa and Azman, Hassan and Agus, Arsad and Masleeyati, Yusop (2019) Dynamic mechanical properties and morphology characteristics of rubber-toughened poly (lactic acid). In: 7th Conference on Emerging Energy and Process Technology (CONCEPT 2018 , 27 - 28 November 2018 , Thistle Hotel Johor, Malaysia. pp. 1-7., 90 (01001). ISSN 2267-1242
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Abstract
This study investigates the effect of natural rubber (NR), epoxidised natural rubber (ENR), and core-shell rubber (CSR) as toughening agents for poly(lactic acid) (PLA). PLA/rubber blends were prepared by using melt blending method in a twin-screw extruder, with the content of rubbers was fixed at 5 wt. %. All PLA/rubber blends exhibited lower storage modulus compared to neat PLA. Two-stage storage modulus (E’) was also observed, where the first stage occurred at lower temperature corresponded to the glass transition temperature (Tg) of rubber components, whereas the second E’ corresponded to the Tg of PLA. The impact fracture surface of PLA/rubber blends also exhibited phase-separated morphology where the spherical-shaped rubber particles were clearly present in the PLA matrix.
| Item Type: | Conference or Workshop Item (Lecture) |
|---|---|
| Additional Information: | Indexed by Scopus |
| Uncontrolled Keywords: | Core-shell rubbers; Dynamic mechanical property; Epoxidised natural rubber; Lower temperatures; Melt-blending methods; Phase separated morphology; Toughening agents; Twin screw extruders |
| Subjects: | T Technology > TP Chemical technology |
| Faculty/Division: | Faculty of Chemical & Natural Resources Engineering |
| Depositing User: | Mrs Norsaini Abdul Samat |
| Date Deposited: | 13 Dec 2019 02:43 |
| Last Modified: | 13 Dec 2019 02:43 |
| URI: | http://umpir.ump.edu.my/id/eprint/25581 |
| Download Statistic: | View Download Statistics |
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