Elastomers and Composites

The Rubber Society of Korea (한국고무학회)
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Dielectric Properties Dependent on Cross-1inking Agent in Silicone Rubber

실리콘고무의 가교제 변화에 의한 유전특성

  • Kwon, B.H. (Dept. of Elect. Engin. Kwang Woon Graduate School) ;
  • Lee, S.I. (Dept. of Elect. Engin. Kwang Woon Graduate School) ;
  • Hong, J.W. (Dept. of Elect. Engin. Kwang Woon Graduate School) ;
  • Lee, J.U. (Dept. of Elect. Engin. Kwang Woon University) ;
  • Lee, W.J. (Dept. of Elect. Engin, Hong-Ik University)
  • 권병휘 (광운대학 대학원 전기공학과) ;
  • 이성일 (광운대학 대학원 전기공학과) ;
  • 홍진웅 (광운대학 대학원 전기공학과) ;
  • 이준웅 (광운대학 전기공학과) ;
  • 이원재 (홍익대학교 공과대학 전기공학과)
  • Published : 1987.03.31
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Abstract

The characteristic of the dielectric relaxation in silicone rubbers were studied in the frequency range of $1{\times}10^2{\sim}3{\times}10^6Hz$ at the temperature range of $30^{\circ}{\sim}170^{\circ}C$. As the results of the study, it has been confirmed that the silicone rubber containing the cross-linking agants of 2,5-bis(tert-butylperoxy)-2, 5-dimethyl hexane exhibit the dissipation spectra of two kind(${\alpha},\;{\beta}$ dissipation) due to the siloxane and methyl groups. Particularly, the maximum value of dielectric loss spectra of silicone rubber combinning the cross-linking agents of 0.7phr to 1.0phr are on the increasing in high frequency region, but the specimen of above 1.0phr become smaller again. The energy and the entropy of activation on the molicular motion obtained 18.32 kcal/mole and $1.48ca1/mole{\cdot}deg$ in measuring condition respectively.

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