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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Effects of Surface Charges on Hydrophobicity and Surface Potential Decay with Various Surface States of Silicone Rubber for Outdoor Insulator

옥외용 실리콘 절연재료의 발수성에 미치는 표면전하의 영향과 표면 상태에 따른 표면전위 감쇠

  • Published : 2002.08.01
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Abstract

This paper presents the effects of accumulation of surface charges on hydrophobic level and the changes of surface potential decay with various artificial environment treatments on high temperature vulcanized (HTV) silicone rubber used for outdoor insulating material. For this study, the charging apparatus by corona discharge, in which grid electrode was installed between the main corona and ground electrode, was used. From this study, it was found that the accumulation of surface charges above a critical surface potential on silicone insulating materials could lead to the temporary loss of surface hydrophobicity. In addition, corona stress and water absorption stress increase the decay rate of surface charges of HTV silicone rubber, while ultraviolet (UV) stress causes longer decay time. We could conclude that the effects of surface charges on hydrophobicity level and the changes of surface state by various artificial treatments were found through a trend of surface potential decay.

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References

  1. Insulators for High Voltages J.S.T. Looms.
  2. Outdoor Insulators R.S. Gorur;E.A. Cherney;J.T. Burnham
  3. IEEE Trans. on Power Delivery v.14 no.1 Water drop corona effects on full scale 500kV non-ceramic insulators A.J. Philips;D.J. Chids;H.M. Schneider https://doi.org/10.1109/61.736734
  4. IEEE Trans. on Die. and E.I. v.6 no.5 Hydrophobicity chages in silicone rubbers H. Hillorg;U.W. Gedde https://doi.org/10.1109/94.798127
  5. IEEE Trans. on Die. and E.I. v.6 no.5 Electrical and environmental aging of silicone rubber used in outdoor insulation N. Yoshimura;S. Kumagai https://doi.org/10.1109/94.798120
  6. Polymer Degra. and Stab. v.66 The analysis of surface degradation on UV-treated epoxy/glass fiber by corona-charging properties B.S. Lee;T. Motoyama;K. Ichikawa;Y. Tabata;D.C. Lee https://doi.org/10.1016/S0141-3910(99)00078-6
  7. IEEE Trans. on Die. and E.I. v.6 no.1 Aging in EPDM used for outdoor insulation Y. Xu;Y. He;F. Zeng;R. Zhang https://doi.org/10.1109/94.752010
  8. J. of Appl. Polymer Science v.52 Oxidative damage and recovery of silicone rubber surface. I . X-ray photoelectron spectroscopic study A. Toth;I. Bertoti;M. Blazso;G. Banhegyi;A. Bognar;P. Szaplonczay
  9. 전기전자재료학회논문지 v.15 no.2 코로나 방전에 따른 실리콘 고무의 표면특성 한동희;조한구;강동필;민경은 https://doi.org/10.4313/JKEM.2002.15.2.133
  10. 전기전자재료학회논문지 v.12 no.1 HTV 실리콘 고무에서 열화인자에 따른 저분자량 성분과 표면 발수성의 변화 허창수;연복희;조한구
  11. 전기전자재료학회논문지 v.13 no.5 자외선 조사된 HTV 실리콘 고무의 표면열화 분석 연복희;이태호;이종한;허창수
  12. IEEE Trans. on Die. and E.I. v.6 no.3 Ac and dc performance of polymeric housing materials for HV outdoor insulator V.M. Moreno;R. S. Gorur https://doi.org/10.1109/94.775621
  13. IEEE Trans. on Die. and E. I. v.4 no.5 The role of trapped charges in the electrical aging of insulating materials L. Dissado;G. Mazzanti;G. Montanari https://doi.org/10.1109/94.625642
  14. IEE Proc. Generation, Transmission and Distribution v.145 no.6 Effects of surface charge in the hydrophobicity levels of insulating materials V. Moreno;M. Ponce;E. Valle;J. Fierro https://doi.org/10.1049/ip-gtd:19982361
  15. IEEE Trans. on Die. and E.I. v.8 no.6 Loss and recovery of hydrophobicity and surface energy of HTV silicone rubber T. Tokoro https://doi.org/10.1109/94.971469