Developing functional epoxy/graphene composites using facile in-situ mechanochemical approach

Meng Q. Feng Y. Han S. Yang F. Demiral M. Meng F. Araby S.
5 April 2023 John Wiley and Sons Inc

Journal of Applied Polymer Science
2023 #140 Issue 13

The awareness of developing eco-friendly polymer composites via green chemistry attract much attention in the recent years. In the current work, we explore preparing functional epoxy/ graphene nanocomposites using mechanochemical approach. Graphene platelets (GnPs) were modified with long-chain surfactant via high-energy ball milling. Modified-GnPs (m-GnPs) promote the dispersion quality and interface strength with epoxy matrix leading to higher mechanical properties, and better electrical and thermal conductivity compared to unmodified GnPs system. At 2.0 vol% m-GnPs, elastic modulus, tensile strength, and thermal conductivity of epoxy were improved by 889%, 163%, and 105%, respectively. In addition, percolation threshold of electrical conductivity was observed at 0.71 vol% m-GnPs. Halpin-Tsai micromechanical model was able to predict the elastic modulus of the epoxy/GnP nanocomposites. The model results were compared experimental measurements. Furthermore, the measurements showed epoxy/m-GnP film possess high sensitivity to mechanical strains and impact loads. The current work gives a step forward to use mechanochemistry approach in the production of functional epoxy/graphene composites.

ball milling , epoxy , functional polymer , graphene , mechanochemistry

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College of Aerospace Engineering, Shenyang Aerospace University, Shenyang, China
School of Materials Science and Engineering, University of Science and Technology of China, Shenyang, China
College of Civil Aviation, Shenyang Aerospace University, Shenyang, China
Shi-changxu Innovation Center for Advanced Materials, Institute of Metal Research, Chinese Academy of Sciences, Shenyang, China
College of Engineering and Technology, American University of the Middle East, Kuwait
Department of Mechanical and Aerospace Engineering, School of Engineering and Digital Sciences, Nazarbayev University, Astana, Kazakhstan
Department of Mechanical Engineering, Benha Faculty of Engineering, Benha University, Benha, Egypt

College of Aerospace Engineering
School of Materials Science and Engineering
College of Civil Aviation
Shi-changxu Innovation Center for Advanced Materials
College of Engineering and Technology
Department of Mechanical and Aerospace Engineering
Department of Mechanical Engineering

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