MECHANICAL BEHAVIOR OF FUNCTIONALIZED GRAPHENE-EPOXY NANOCOMPOSITES AROUND GLASS TRANSITION TEMPERATURE


Bakbak O. , Birkan B. E. , Acar A. , Çolak Çakır Ö. Ü.

6th International Conference on Advances in Mechanical Engineering,, İstanbul, Turkey, 20 - 22 October 2021, pp.112-117

  • Publication Type: Conference Paper / Full Text
  • City: İstanbul
  • Country: Turkey
  • Page Numbers: pp.112-117

Abstract

It is well known that temperature and strain rate have a major influence on the behavior of polymer matrix composites. Therefore, in this work, the mechanical properties of functionalized graphene f-GNF-epoxy nanocomposites with content of 0.1 wt% f-GNF are investigated around the glass transition temperature. Nanocomposites are manufactured using three roll milling method for a homogenous dispersion of nano-filler which is f-GNF in this work. Dynamic mechanical analysis (DMA) reveals that the glass transition temperature of f-GNF- epoxy nanocomposite is around 170.1 °C. Therefore, the mechanical characterization is done around this temperature. It is selected as 120 C. The investigated mechanical properties are elasticity modulus, yield strength, ultimate strength and relaxation modulus. The properties are compared by the behavior at room temperature as well.