Journal of the Korean Institute of Electrical and Electronic Material Engineers (한국전기전자재료학회논문지)

The Korean Institute of Electrical and Electronic Material Engineers (한국전기전자재료학회)
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A Study on Dielectric Properties of Polycarbonate Film Due to Variation of Degradation Time

열화 시간 변화에 따른 폴리카보네이트 필름의 유전 특성에 관한 연구

  • Lee, Sung Ill (Department of safety Engineering, Korea National University of Transportation)
  • 이성일 (한국교통대학교 안전공학과)
  • Received : 2018.08.16
  • Accepted : 2018.09.06
  • Published : 2018.11.01
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Abstract

In this study, the capacity and FTIR of polycarbonate film that was degraded for 2, 4, and 8 h in a thermostat at $180^{\circ}C$ was measured. The results of this study are as follows. It was found that the capacity decreased with increasing degradation time and frequency. This findings suggest that the attraction between molecules and amorphous polycarbonate increased because it contains the ketone group (-C=O-) and the chain of dioxides group (-O-R-O-). Measurement by FTIR found that the time of thermal degradation has a smaller impact because the transmutation or variation of the material does not occur. Measurement by SEM magnified 1,000 times found that a longer thermal degradation time results in thermal decomposition of the specimen's particles.

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References

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