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Mechanical Properties of Epoxy Paint using Oxidized Graphene Nanoplatelet as a Reinforcement

산화 그래핀 나노플레이트릿을 강화제로 사용한 에폭시 도료의 역학적 특성

  • Seo, Won-Woo (Dept. of Architectural Eng., Chungnam National University) ;
  • Kim, Gyu-Yong (Dept. of Architectural Eng., Chungnam National University) ;
  • Yoon, Min-Ho (Dept. of Architectural Eng., Chungnam National University) ;
  • Lee, Bo-Kyeong (Dept. of Architectural Eng., Chungnam National University) ;
  • Nam, Jeong-Soo (Dept. of Architectural Eng., Chungnam National University)
  • Received : 2017.08.30
  • Accepted : 2017.09.19
  • Published : 2017.10.20

Abstract

In this study, oxidized graphene nanoplatelet(GO) was prepared by oxidizing graphene nanoplatelet(GNP) with nitric acid in order to solve the problem of dispersion of GNP, one of nano materials. The surface chemical composition of the prepared GO was analyzed by fourier transform infrared spectroscopy(FT-IR) before incorporation into the epoxy paint, and the dispersibility in the solvent was confirmed. Meanwhile, GNP/Epoxy and GO/Epoxy paint were prepared by mixing GNP, GO with 0.1, 0.3, 0.5 and 1.0wt.% in epoxy paint and the mechanical properties were evaluated. As a result, GNP/Epoxy and GO/Epoxy paints showed better mechanical properties than Neat Epoxy which did not incorporate GNP, GO. Especially, when 0.3wt.% of GO was incorporated into epoxy resin, it showed higher tensile strength than Neat Epoxy. It was confirmed that acid treatment of GNP was effective in improving the mechanical properties of epoxy paint.

Acknowledgement

Supported by : National Research Foundation of Korea (NRF)

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