Mat Desa, Mohd. Shaiful Zaidi and Hassan, Azman and Arsad, Agus and Arjmandi, Reza (2019) Effect of core–shell rubber toughening on mechanical, thermal, and morphological properties of poly(lactic acid)/multiwalled carbon nanotubes nanocomposites. Journal of Applied Polymer Science, 136 (28). p. 47756. ISSN 0021-8995
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Official URL: http://dx.doi.org/10.1002/app.47756
Abstract
The effect of core–shell rubber (CSR) toughening on mechanical and thermal properties of poly(lactic acid)/multiwalled carbon nanotubes (PLA/CNT) nanocomposites were investigated. The nanocomposites were prepared by direct melt blending method in a counter-rotating twin-screw extruder. The contents of CSR were varied between 5 and 20 wt % while the content of CNT was kept at 5 phr. The extruded samples were injection molded into the desired test specimens for mechanical and thermal properties analysis. The impact strength of PLA/CNT increased with increasing CSR content with concomitant decrease in tensile strength and modulus. Interestingly, the flexural strength increased at low CSR content before decreasing at 15 and 20% content. Differential scanning calorimetry analysis on the second heating cycle shows no crystallinity content for PLA/CNT and all CSR toughened PLA/CNT nanocomposites, while thermogravimetric analysis shows lower thermal degradation of all CSR toughened PLA/CNT as compared to PLA/CNT nanocomposite. This study reveals significant correlation between CSR loading with the mechanical and thermal properties of the nanocomposites.
Item Type: | Article |
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Uncontrolled Keywords: | morphology, nanotubes |
Subjects: | T Technology > TP Chemical technology |
Divisions: | Chemical and Energy Engineering |
ID Code: | 88258 |
Deposited By: | Widya Wahid |
Deposited On: | 15 Dec 2020 00:19 |
Last Modified: | 15 Dec 2020 00:19 |
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