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Reinforcement of graphene nanoplatelets on plasticized poly (lactic acid) nanocomposites: mechanical, thermal, morphology, and antibacterial properties


Citation

Buong, Woei Chieng and Ibrahim, Nor Azowa and Wan Yunus, Wan Md Zin and Hussein, Mohd Zobir and Yoon, Yee Then and Yuet, Ying Loo (2015) Reinforcement of graphene nanoplatelets on plasticized poly (lactic acid) nanocomposites: mechanical, thermal, morphology, and antibacterial properties. Journal of Applied Polymer Science, 132 (11). art. no. 41652. pp. 1-5. ISSN 0021-8995; ESSN: 1097-4628

Abstract

Plasticized poly(lactic acid) (PLA)‐based nanocomposites filled with graphene nanoplatelets (xGnP) and containing poly(ethylene glycol) (PEG) and epoxidized palm oil (EPO) with ratio 2 : 1 (2P : 1E) as hybrid plasticizer were prepared by melt blending method. The key objective is to take advantage of plasticization to increase the material ductility while preserving valuable stiffness, strength, and toughness via addition of xGnP. The tensile modulus of PLA/2P : 1E/0.1 wt % xGnP was substantially improved (30%) with strength and elasticity maintained, as compared to plasticized PLA. TGA analysis revealed that the xGnP was capable of acting as barrier to reduce thermal diffusion across the plasticized PLA matrix, and thus enhanced thermal stability of the plasticized PLA. Incorporation of xGnP also enhanced antimicrobial activity of nanocomposites toward Escherichia coli, Salmonella typhimurium, Staphylococcus aureus, and Listeria monocytogenes.


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Additional Metadata

Item Type: Article
Divisions: Faculty of Food Science and Technology
Faculty of Science
Institute of Advanced Technology
DOI Number: https://doi.org/10.1002/app.41652
Publisher: Wiley
Keywords: Mechanical properties; Morphology; Polyesters; Properties and characterization; Thermogravimetric analysis (TGA)
Depositing User: Nida Hidayati Ghazali
Date Deposited: 07 May 2018 00:47
Last Modified: 07 May 2018 00:47
Altmetrics: http://www.altmetric.com/details.php?domain=psasir.upm.edu.my&doi=10.1002/app.41652
URI: http://psasir.upm.edu.my/id/eprint/46119
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