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Influence of rubber content on mechanical, thermal, and morphological behavior of natural rubber toughened poly(lactic acid)-multiwalled carbon nanotube nanocomposites

Mat Desa, M. S. Z. and Hassan, A. and Arsad, A. and Arjmandi, R. and Mohammad, N. N. B. (2016) Influence of rubber content on mechanical, thermal, and morphological behavior of natural rubber toughened poly(lactic acid)-multiwalled carbon nanotube nanocomposites. Journal of Applied Polymer Science, 133 (48). ISSN 0021-8995

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Abstract

The effects of natural rubber (NR) on the mechanical, thermal, and morphological properties of multiwalled carbon nanotube (CNT) reinforced poly(lactic acid) (PLA) nanocomposites prepared by melt blending were investigated. A PLA/NR blend and PLA/CNT nanocomposites were also produced for comparison. The tensile strength and Youngs modulus of PLA/CNT nanocomposites improved significantly, whereas the impact strength decreased compared to neat PLA. The incorporation of NR into PLA/CNT significantly improved the impact strength and elongation at break of the nanocomposites, which showed approximately 200 and 850 increases at 20 wt NR, respectively. However, the tensile strength and Youngs modulus of PLA/NR/CNT nanocomposites decreased compared to PLA/CNT nanocomposites. The morphology analysis showed the homogeneous dispersion of NR particles in PLA/NR/CNT nanocomposites, while CNTs preferentially reside in the NR phase rather than the PLA matrix. In addition, the incorporation of NR into PLA/CNT lowered the thermal stability and glass-transition temperature of the nanocomposites.

Item Type:Article
Uncontrolled Keywords:Biopolymers, Blending, Carbon nanotubes, Elastic moduli, Glass transition, Impact strength, Lactic acid, Mechanical properties, Nanocomposites, Nanotubes, Rubber, Tensile strength, Thermodynamic properties, Yarn, Carbon nanotube nanocomposites, Homogeneous dispersions, Morphological behavior, Morphological properties, Morphology analysis, Polylactic acids, Rubber-toughened, Strength and elongations, Multiwalled carbon nanotubes (MWCN)
Subjects:T Technology > TP Chemical technology
Divisions:Chemical Engineering
ID Code:71510
Deposited By: Fazli Masari
Deposited On:15 Nov 2017 03:37
Last Modified:15 Nov 2017 03:37

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