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Dielectric Relaxation Properties for following the Ageing of Polyetheretherketone

열화에 따른 Polyetheretherketone의 유전완화특성

  • 김기엽 (한국원자력연구소 방사선이용연구부) ;
  • 이청 (한국원자력연구소 방사선이용연구부) ;
  • 류부형 (동국대학교 안전공학과) ;
  • 임기조 (충북대학교 전기전자공학부)
  • Published : 2004.04.01

Abstract

The dielectric properties of Y-ray irradiated and thermally aged polyetheretherketone (PEEK) have been investigated. Results of the temperature dependency of dielectric properties indicated that the glass transition temperature of aged PEEK increased as radiative and thermal ageing. The frequency dependency of dielectric properties implied that the magnitude of radiation and thermal induced dipoles, ions increased as radiative and thermal ageing. The values of relaxation intensity calculated using Cole-Cole's circular arc can be useful for evaluation of degradation level of PEEK.

Keywords

References

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