Journal of Radiation Industry (방사선산업학회지)

Korean Society of Radiation Industry (한국방사선산업학회)
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Preparation of Polyethylene Foam Sheets Crosslinked by Gamma-ray Irradiation

감마선 조사에 의하여 가교된 폴리에틸렌 발포 시트의 제조

  • Lee, Dong-Hoon (Research Division for Industry and Environment, Advanced Radiation Technology Institute, Korea Atomic Energy Research Institute) ;
  • Choi, Jun-Ho (Research Division for Industry and Environment, Advanced Radiation Technology Institute, Korea Atomic Energy Research Institute) ;
  • Shim, Ki-Hyung (Youngbo Chemical Co., Ltd.) ;
  • Jung, Chan-Hee (Research Division for Industry and Environment, Advanced Radiation Technology Institute, Korea Atomic Energy Research Institute) ;
  • Hwang, In-Tae (Research Division for Industry and Environment, Advanced Radiation Technology Institute, Korea Atomic Energy Research Institute) ;
  • Choi, Jae-Hak (Research Division for Industry and Environment, Advanced Radiation Technology Institute, Korea Atomic Energy Research Institute)
  • 이동훈 (한국원자력연구원 첨단방사선연구소 공업환경연구부) ;
  • 최준호 (한국원자력연구원 첨단방사선연구소 공업환경연구부) ;
  • 심기형 (영보화학(주)) ;
  • 정찬희 (한국원자력연구원 첨단방사선연구소 공업환경연구부) ;
  • 황인태 (한국원자력연구원 첨단방사선연구소 공업환경연구부) ;
  • 최재학 (한국원자력연구원 첨단방사선연구소 공업환경연구부)
  • Received : 2012.07.12
  • Accepted : 2012.08.18
  • Published : 2012.09.30

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Abstract

In this study, crosslinked polyethylene (PE) foam sheets were prepared through gamma-ray irradiation. PE foam sheets were prepared through a foaming process using sodium bicarbonate as a blowing and foaming agent. The prepared PE foam sheets were then crosslinked through gamma-ray irradiation. The crosslinking degree was increased to 86.0% with an increase in the absorption dose. The tensile strength of the crosslinked PE foam sheets was increased with an increase in the absorption dose. However, the elongation-at-break of the crosslinked PE foam sheets was decreased. The thermal decomposition temperature of the crosslinked PE foam sheets was increased to $421.2^{\circ}C$ with an increase in the absorption dose. The SEM analysis revealed that the morphology was not changed significantly after the crosslinking through gamma-ray irradiation.

Keywords

Acknowledgement

Supported by : 한국연구재단