Dielectric Properties on Gamma Ray Irradiated Low Density Polyethylene

방사선조사에 따른 저밀도 폴리에틸렌의 유전특성

  • 김기엽 (한국원자력연구소 방사선응용연구팀) ;
  • 류부형 (동국대학교 안전공학과) ;
  • 강성화 (충청대학 산업안전과) ;
  • 이청 (충북대학교 전기공학과) ;
  • 임기조 (충북대학교 전기공학과)
  • Published : 2000.11.01

Abstract

Radiation effects on dielectric properties of low density polyethylene(LDPE) were investigated using the various measurements of FT-IR, gel content and elongation at break. FT-IR spectra showed that polar groups were comprised in LDPE due to radiation treatment. It was also confirmed that the formation of polar groups on LDPE caused the increased dielectric properties such as permittivity and tan $\delta$. However, in this study, any evidence of decreasing permittivity was not found although the morphological change of LDPE could be identified from the increasing gel content and the decreasing elongation.