Characteristics and Mechanical Properties of Graphene Nanoplatelets-Reinforced Epoxy Nanocomposites: Comparison of Different Dispersal Mechanisms

Ming-Yuan Shen, Wen-Yuan Liao, Tan-Qi Wang and Wei-Min Lai
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Ming-Yuan Shen: Department of Mechanical Engineering, National Chin-Yi University of Technology, Taichung 411, Taiwan
Wen-Yuan Liao: Department of Mechanical Engineering, National Chin-Yi University of Technology, Taichung 411, Taiwan
Tan-Qi Wang: Department of Mechanical Engineering, National Chin-Yi University of Technology, Taichung 411, Taiwan
Wei-Min Lai: Department of Mechanical Engineering, National Chin-Yi University of Technology, Taichung 411, Taiwan

Sustainability, 2021, vol. 13, issue 4, 1-18

Abstract: The preparation of polymer-based nanocomposites requires considerable time (i.e., the dispersal of nanomaterials into a polymer matrix), resulting in difficulties associated with their commercial use. In this study, two simple and efficient dispersion methods, namely planetary centrifugal mixing and three-roll milling, were used to enable the graphene nanoplatelets to disperse uniformly throughout an epoxy solution (i.e., 0, 0.1, 0.25, 0.5, and 1.0 wt.%) and allow the subsequent preparation of graphene nanoplatelets/epoxy nanocomposites. Measurements of mechanical properties of these nanocomposites, including ultimate tensile strength, flexural strength, and flexural modulus, were used to evaluate these dispersal methods. Dispersing graphene nanoplatelets into the epoxy resin by planetary centrifugal mixing not only required a shorter process time but also resulted in a more uniform dispersion of graphene nanoplatelets than that by three-roll milling. In addition, compared with traditional dispersal methods, planetary centrifugal mixing was a more efficient dispersal method for the preparation of epoxy-based nanocomposites.

Keywords: graphene nanoplatelets; graphene nanoplatelets/epoxy nanocomposite; mechanical properties; planetary centrifugal mixing; three-roll milling; traditional dispersal (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2021
References: View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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