The evaluation of mechanical properties graphene nanoplatelets reinforced polylactic acid nanocomposites

N. F., Ab Ghani and M. S. Z., Mat Desa and M., Bijarimi (2021) The evaluation of mechanical properties graphene nanoplatelets reinforced polylactic acid nanocomposites. In: Materials Today: Proceedings, International Conference of Chemical Engineering & Industrial Biotechnology (ICCEIB 2020) , 9-11 August 2020 , Virtual Conference, Universiti Malaysia Pahang, Malaysia. pp. 283-287., 42 (Part 1). ISSN 2214-7853

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Abstract

Polylactic acid (PLA) has interesting properties i.e., biodegradability, good processability, high tensile strength and stiffness. However, further enhancement on the overall properties of PLA is required to meet industrial application requirements. The addition of nanofillers, such as graphene nanoplatelets (GNP), may improve the mechanical properties, electrical and flame retardant properties of PLA. This study will focus on the use of GNP to improve PLA mechanical properties. The contents of GNP varied at 0, 0.1, 0.3, 0.5 and 1.0 wt%, and the PLA/GNP nanocomposites were prepared using twin-screw extruder by melt-blending technique, followed by injection moulding. The nanocomposites were analysed using tensile test for mechanical testing while using field emission scanning electron microscopy (FESEM) to analyse morphology. At low GNP contents, the prepared nanocomposites showed a significant improvement in tensile properties. The tensile strength of nanocomposites increased significantly when an increased GNP content in PLA and reached a maximum value at PLA with 0.3 wt% GNP (50.3 MPa) compared to others composition. FESEM results also show that the GNP dispersed uniformly in the polymer matrix of PLA/0.3GNP. Based on this study, PLA/GNP nanocomposites that contains 0.3 wt% GNP showed the best mechanical properties among all formulation.

Item Type:	Conference or Workshop Item (Lecture)
Uncontrolled Keywords:	Poly (lactic acid), Graphene nanoplatelets, Polymer nanocomposites, Mechanical properties, Melt blending
Subjects:	T Technology > TP Chemical technology
Faculty/Division:	Faculty of Chemical & Natural Resources Engineering Institute of Postgraduate Studies
Depositing User:	Noorul Farina Arifin
Date Deposited:	17 Jun 2022 07:58
Last Modified:	17 Jun 2022 07:58
URI:	http://umpir.ump.edu.my/id/eprint/34458
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