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- Title
Effect of core–shell rubber toughening on mechanical, thermal, and morphological properties of poly(lactic acid)/multiwalled carbon nanotubes nanocomposites.
- Authors
Mat Desa, Mohd Shaiful Zaidi; Hassan, Azman; Arsad, Agus; Arjmandi, Reza
- 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. © 2019 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2019, 136, 47756. TEM micrograph of core‐shell rubber toughened PLA/CNT nanocomposites
- Subjects
RUBBER factories; RUBBER cladding; RUBBER waste; ELASTOMERS; FOREST products
- Publication
Journal of Applied Polymer Science, 2019, Vol 136, Issue 28, pN.PAG
- ISSN
0021-8995
- Publication type
Article
- DOI
10.1002/app.47756