Journal of Radiation Industry (방사선산업학회지)

Korean Society of Radiation Industry (한국방사선산업학회)
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Evaluation of Physical Properties of Ethylene Vinyl Acetate/Silicone Emulsion for Radon Shielding Prepared by Electron-beam Irradiation

전자선 조사에 의해 제조된 라돈 차폐용 ethylene vinyl acetate/silicone 에멀젼의 물리적 특성 평가

  • Jong-Seok Park (Korea Atomic Energy Research Institute, Advanced Radiation Technology Institute) ;
  • Jang-Gun Lee (Korea Atomic Energy Research Institute, Advanced Radiation Technology Institute) ;
  • Sung-In Jeong (Korea Atomic Energy Research Institute, Advanced Radiation Technology Institute) ;
  • Jun-Pyo Jeon (Korea Atomic Energy Research Institute, Advanced Radiation Technology Institute) ;
  • Yoon-Mook Lim (Korea Atomic Energy Research Institute, Advanced Radiation Technology Institute) ;
  • Jae-Hak Choi (Department of Polymer Science and Engineering, Chungnam National University) ;
  • Kap-Soo Kim (Hanyang Construction Co., Ltd.)
  • 박종석 (한국원자력연구원 첨단방사선연구소) ;
  • 이장건 (한국원자력연구원 첨단방사선연구소) ;
  • 정성린 (한국원자력연구원 첨단방사선연구소) ;
  • 전준표 (한국원자력연구원 첨단방사선연구소) ;
  • 임윤묵 (한국원자력연구원 첨단방사선연구소) ;
  • 최재학 (충남대학교 고분자공학과) ;
  • 김갑수 (한양건설(주))
  • Received : 2023.10.26
  • Accepted : 2023.12.08
  • Published : 2023.12.31
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Abstract

Radon, a carcinogenic substance generated from soil or building materials, have to be fundamentally blocked from entering indoors. In this study, ethylene vinyl acetate (EVA)/silicone emulsions with excellent mechanical and thermal properties and effective blocking of radon gas were prepared by using radiation technology. As the electron-beam irradiation does increased, a partially crosslinked structure was formed in EVA molecular chain, increasing tensile properties and adhesive strength. The EVA/silicone film showed excellent thermal stability without deformation. In addition, the non-irradiated EVA/silicone film showed a radon blocking rate of about a 75%, while the EVA/silicone film irradiated with 3 and 5 kGy showed an excellent radon blocking rate of over 90% due to the formation of crosslinked structure in the EVA molecular chain. These results indicated that the radiation technology can effectively block radon by forming a partially crosslinked structure of EVA/silicone emulsion to improve tensile property, adhesive strength, and deformation stability.

Keywords

Acknowledgement

본 연구는 과학기술정보통신부의 재원으로 한국연구재단의 방사선안전소재 및 의학기술개발사업(방사선안전소재기술개발사업) (2019MC28A1058044)의 지원받아 수행되었으며, 이에 감사드립니다.

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