Journal of Radiation Industry (방사선산업학회지)

Korean Society of Radiation Industry (한국방사선산업학회)
권호 표지

Effects of Electron Beam Irradiation on Mechanical Properties of HDPE/α-Al2O3 Composites

전자선 가교에 의한 HDPE/α-Al2O3 복합재료의 기계적 특성 평가

  • Jung, Seung Tae (Radiation Research Division for Industry and Environment, Korea Atomic Energy Research Institute) ;
  • Shin, Bum Sik (Radiation Research Division for Industry and Environment, Korea Atomic Energy Research Institute) ;
  • Kim, Hyun Bin (Radiation Research Division for Industry and Environment, Korea Atomic Energy Research Institute) ;
  • Kim, Tae Uk (Radiation Research Division for Industry and Environment, Korea Atomic Energy Research Institute) ;
  • Jeun, Joon Pyo (Radiation Research Division for Industry and Environment, Korea Atomic Energy Research Institute) ;
  • Kang, Phil Hyun (Radiation Research Division for Industry and Environment, Korea Atomic Energy Research Institute)
  • 정승태 (한국원자력연구원 방사선공업환경연구부) ;
  • 신범식 (한국원자력연구원 방사선공업환경연구부) ;
  • 김현빈 (한국원자력연구원 방사선공업환경연구부) ;
  • 김태욱 (한국원자력연구원 방사선공업환경연구부) ;
  • 전준표 (한국원자력연구원 방사선공업환경연구부) ;
  • 강필현 (한국원자력연구원 방사선공업환경연구부)
  • Received : 2011.05.23
  • Accepted : 2011.05.24
  • Published : 2011.06.30

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Abstract

In this study, we fabricated the HDPE and ${\alpha}-Al_2O_3$ composites with PE-g-MA as a function of the ${\alpha}-Al_2O_3$ nanopowder weight ratios. The electron beam irradiations on HDPE/${\alpha}-Al_2O_3$ composites were carried out over a range of absorbed doses from 20 to 200 kGy to make three-dimensional network structures. The mechanical properties were characterized using UTM for confirming the changes of the flexural strength and tensile strength. It was observed that the mechanical properties of HDPE were enhanced by the addition of ${\alpha}-Al_2O_3$. However, the strength of the 5 wt% ${\alpha}-Al_2O_3$ added composites decreased due to the nano-powder aggregation. The mechanical properties of composites were increased as increasing the electron beam irradiation up to 150 kGy. We believed that the electron beam irradiated HDPE/${\alpha}-Al_2O_3$ composites can be a good candidate for a variety of industrial applications.

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