Journal of Radiation Industry (방사선산업학회지)

Korean Society of Radiation Industry (한국방사선산업학회)
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Physical Changes on the Radiation and Heat Induced Poly(Vinyl Alcohol) Fibers

방사선과 열처리된 폴리비닐알콜 섬유의 물리적 변화

  • Nho, Young-Chang (Research Division for Industry & Environment, Korea Atomic Energy Research Institute) ;
  • Park, Kyung-Ran (Research Division for Industry & Environment, Korea Atomic Energy Research Institute) ;
  • Park, Jong-Seok (Research Division for Industry & Environment, Korea Atomic Energy Research Institute) ;
  • Lim, Youn-Mook (Research Division for Industry & Environment, Korea Atomic Energy Research Institute) ;
  • Kang, Phil-Hyun (Research Division for Industry & Environment, Korea Atomic Energy Research Institute)
  • 노영창 (한국원자력연구원 첨단방사선연구소) ;
  • 박경란 (한국원자력연구원 첨단방사선연구소) ;
  • 박종석 (한국원자력연구원 첨단방사선연구소) ;
  • 임윤묵 (한국원자력연구원 첨단방사선연구소) ;
  • 강필현 (한국원자력연구원 첨단방사선연구소)
  • Received : 2016.05.03
  • Accepted : 2016.06.10
  • Published : 2016.06.30

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Abstract

Poly(vinyl alcohol) (PVA) has high tensile strength and flexibility as well as oxygen barrier properties. The water, which acts as a plasticizer, reduces the tensile strength of PVA and swells PVA as well. It needs to have high water-resistant depending on its applications, especially for the use as tire cords. The aim of this work was to investigate the effect of the annealing temperature and radiation on the Gel content and tensile strength of PVA fibers. For this purpose, gel fraction and tensile strength were determined and analyzed. Annealing was performed in the temperature range of 120~180℃ for 10 min. PVA fibers were irradiated by using a conventional electron beam irradiation at a radiation dose of 50~200 kGy, at a dose of 10 kGy/pass at room temperature (acceleration voltage of 1 MeV). Annealing markedly increased the Gel content and the tensile strength of PVA fibers. However irradiation lowered the Gel content and the tensile strength of PVA fibers because they were degraded easily by radiation.

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