Effects of Surfactant in Semicon Electrode on Electrical Conduction of XLPE

반도전 전극에 들어 있는 계면활성제가 XLPE의 전기전도 특성에 미치는 영향

  • 조준상 (고려대학교 재료금속공학부) ;
  • 서광석 (고려대학교 재료금속공학부) ;
  • 이건주 (LG전선 연구소 고분자 연구실)
  • Published : 2000.03.01


Electrical conduction characteristics of crosslinked polyethylene(XLPE) were investigated using an electrode made of semicon material containing a surfactant. When the semicon material is used as an electrode the conduction of XLPE obeys a space charge limited conduction(SCLC) mechanism which holds true for both control and surfactant-containing semicon electrodes. Conduction currents get higher with the addition of surfactant in the semicon electrodes while the charge mobility increases with the increase of surfactant content in the semicon electrode. The diffusion of surfactant molecules into the XLPE was confirmed via a $\mu$-FTIR analysis. It was found through a measurement of spatial charge distributions that the surfactant in the semicon electrodes enhances the injection of negative charge into the XLPE from the electrode. Experimental results and their origins are discussed in detail.


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