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, Türkiye, 20 - 22 Ekim 2021, ss.112-117

  • Yayın Türü: Bildiri / Tam Metin Bildiri
  • Basıldığı Şehir: İstanbul
  • Basıldığı Ülke: Türkiye
  • Sayfa Sayıları: ss.112-117
  • Yıldız Teknik Üniversitesi Adresli: Evet

Özet

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.