Journal of Radiation Industry (방사선산업학회지)

Korean Society of Radiation Industry (한국방사선산업학회)
권호 표지

Degradation Characteristics of Waste Polyurethane by Radiation

방사선에 의한 폐폴리우레탄의 분해 거동

  • Park, Jong-Seok (Research Division for Industry & Environment, Korea Atomic Energy Research Institute) ;
  • Ahn, Sung-Jun (Research Division for Industry & Environment, Korea Atomic Energy Research Institute) ;
  • Gwon, Hui-Jeong (Research Division for Industry & Environment, Korea Atomic Energy Research Institute) ;
  • Jeong, Sung-In (Research Division for Industry & Environment, Korea Atomic Energy Research Institute) ;
  • Nho, Young-Chang (Research Division for Industry & Environment, Korea Atomic Energy Research Institute) ;
  • Lim, Youn-Mook (Research Division for Industry & Environment, Korea Atomic Energy Research Institute)
  • 박종석 (한국원자력연구원 첨단방사선연구소) ;
  • 안성준 (한국원자력연구원 첨단방사선연구소) ;
  • 권희정 (한국원자력연구원 첨단방사선연구소) ;
  • 정성린 (한국원자력연구원 첨단방사선연구소) ;
  • 노영창 (한국원자력연구원 첨단방사선연구소) ;
  • 임윤묵 (한국원자력연구원 첨단방사선연구소)
  • Received : 2017.02.03
  • Accepted : 2017.06.21
  • Published : 2017.06.30

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Abstract

Polyurethane (PU) is a very popular polymer that is used in a variety of applications due to its good mechanical, thermal, and chemical properties. However, waste PU recycling has received significant attention due to environmental issues. The aim of this work was to investigate the degradation characteristics of waste PU to recycle. Degradation of waste PU was carried out using a radiation techniques. Waste PUs were exposed to a gamma 60Co sources. To verify degradation, the irradiated PUs were characterized using FT-IR, gel permeation chromatography (GPC), and their thermal/mechanical properties are reported. When the radiation dose was 500 kGy, the molecular weight of the waste PU drastically decreased. Also, the mechanical properties of waste PU were approximately 4 times lower than those of non-irradiated PU. This study has confirmed the possibility of making fine particle of waste PU for recycling through radiation degradation techniques.

Keywords

Acknowledgement

이 논문은 미래창조과학부의 재원으로 한국연구재단의 방사선기술개발사업으로 지원받아 수행된 연구임.