The Transactions of The Korean Institute of Electrical Engineers (전기학회논문지)

The Korean Institute of Electrical Engineers (대한전기학회)
권호 표지
DOI QR코드

DOI QR Code

AC Electrical and Mechanical Properties of Epoxy-Nano-Microsilica Mixed Composites for Eco-Friendly GIS Spacer

친환경 GIS Spacer용, 에폭시-나노-마이크로실리카 혼합 콤포지트의 교류 전기적, 기계적 특성

  • Park, Jae-Jun (Dept. of Electrical and Electronic Engineering, Joongbu University)
  • Received : 2018.03.02
  • Accepted : 2018.06.27
  • Published : 2018.09.01
Download PDF
⟨ Previous Next ⟩

Abstract

In order to develop new insulating materials for GIS Spacer using environmentally friendly insulating gas, three kinds of dispersed liquid nano composites of solid epoxy /nano layered silicate filled material were prepared. And the epoxy/nano/micro silica composite was prepared by mixing epoxy/nano 3 phr dispersion/4 kinds of filler contents(40,50,60, 70wt%). The electrical insulation breakdown strengths of the nano and nano/micro mixed composites were evaluated by using 8 kinds of samples including the original epoxy. The mechanical tensile strength of the epoxy / nano / micro silica composite were evaluated, also. The TEM was measured to evaluate the internal structure of nano/micro composites. As a result, it was confirmed that the layered silicate nano particles was exfoliated through the process of inserting epoxy resin between silicate layers and the layers. In addition, dispersion of nano / micro silica resulted in improvement of electrical insulation breakdown strength with increase of filling amount of dense tissue with nanoparticles inserted between microparticles. In addition, the tensile strength showed a similar tendency, and as the content of microsilica filler increased, the mechanical improvement was further increased.

Keywords

References

  1. J.-H. Fabian, S. Hartmann and A. Hamidi, "Analysis of insulation failure modes in high power IGBT modules", Industry Applications Conf., Fourtieth IAS Annual Meeting, Vol. 2, pp. 799-805, 2005.
  2. Z. Li, K. Okamoto, Y. Ohki, T. Tanaka, "Effects of Nano-Filler Addition on Partial Discharge Resistance and Dielectric Breakdown Strength of MicroAl2O3/Epoxy Composite", IEEE Trans. Dielectr. Electr. Insul., Vol. 17, pp. 654-663, 2010.
  3. T. Kikuchi, T. Shikano, H. Kawafuji, T. Ueda, K. Tada and H. Shiota, "Insulation resin sheet for power modules of transfer-molded type package", Mitsubishi Electric Technical Rev., Vol. 81, No. 5, pp. 365-368, 2007 (in Japanese).
  4. S. Singha and M. J. Thomas, "Dielectric Properties of Epoxy Nanocomposites", IEEE Trans. Dielectr. Electr. Insul., Vol. 15, pp. 12-23, 2008. https://doi.org/10.1109/T-DEI.2008.4446732
  5. S. Singha and M. J. Thomas, "Influence of Filler Loading on Dielectric Properties of Epoxy-ZnO Nanocomposites", IEEE Trans. Dielectr. Electr. Insul., Vol. 16, pp. 531-542, 2009. https://doi.org/10.1109/TDEI.2009.4815189
  6. Y. Yin, X. Dong, Z. Li and X. Li, "The Effect of Electrically Prestressing on DC Breakdown Strength in the Nanocomposite of Low-density Polyethylene / nano- SiOx", IEEE Intern. Conf. Solid Dielectr., pp. 372-376, 2007.
  7. M. Kozako, N. Fuse, Y. Ohki, T. Okamoto and T. Tanaka, "Surface Degradation of Polyamide Nanocomposites Caused by Partial Discharges Using IEC (b) Electrodes", IEEE Trans. Dielectr. Electr. Insul., Vol. 11, pp. 833-839, 2004. https://doi.org/10.1109/TDEI.2004.1349788
  8. G. C. Montanari, D. Fabiani, F. Palmieri, D. Kaempfer, R.Thomann and R. Mulhaupt, "Modification of electrical properties and performance of EVA and PP insulation through nanocomposite by organophilic silicates", IEEE Trans. Dielectr. Electr. Insul., Vol. 11, pp. 754-762, 2004. https://doi.org/10.1109/TDEI.2004.1349780
  9. T. Tanaka, G. C. Montanari and R. Mulhaupt, "Polymer Nanocomposites as Dielectrics and Electrical Insulation-perspectives foe Processing Technologies, Material Characterization and Future Applications", IEEE Trans. Dielectr. Electr. Insul., Vol. 11, pp. 763-784, 2004. https://doi.org/10.1109/TDEI.2004.1349782
  10. M. Roy, J. K. Nelson, R. K. Maccrone, L. S. Schandler, C.W. Reed, R. Keefe and W. Zenger, "Polymer Nanocomposite Dielectrics-The Role of the interface", IEEE Trans. Dielectr. Electr. Insul., Vol. 12, pp. 629-643, 2005. https://doi.org/10.1109/TDEI.2005.1511089
  11. N. Fuse, Y. Ohki, M. Kozako and T. Tanaka, "Possible Mechanisms of Superior Resistance of Polyamide Nanocomposites to Partial Discharges and Plasma", IEEE Trans. Dielectr. Electr. Insul., Vol. 15, pp.161-169, 2008. https://doi.org/10.1109/T-DEI.2008.4446747
  12. M. Kozako, S. Yamano, R. Kido, Y. Ohki, M. Kohtoh, S. Okabe and T. Tanaka, "Preparation and Preliminary Characteristic Evaluation of Epoxy/Alumina Nanocomposites", Intern. Sympos. Electr. Insulating Materials (ISEIM), pp. 231-234, 2005.
  13. T. Imai, F. Sawa, T. Nakano, T. Ozaki, T. Shimizu, M. Kozako and T. Tanaka, "Insulation Properties of Nanoand Micro-Filler Mixture Composite", IEEE Conf. Electr. Insul. Dielectr. Phenomena (CEIDP), pp.171-174, 2005.
  14. T. Tanaka, T. Yazawa, Y. Ohki, M. Ochi, M. Hara and T. Imai, "Frequency Accelerated Partial Discharge Resistance of Epoxy/Clay NanocompositePrepared by Newly Developed Organic Modification and Solubilization Methods", IEEE Intern. Conf. Solid Dielectr. (ICSD), pp. 337-340, 2007.
  15. T. Tanaka, Y. Ohki, M. Ochi, M. Hara and T. Imai, "Enhanced Partial Discharge Resistance of Epoxy/Clay Nanocomposite Prepared by Newly Developed Organic Modification and Solubilization Methods", IEEE Trans. Dielectr. Electr. Insul., Vol. 15, pp. 81-89, 2008. https://doi.org/10.1109/T-DEI.2008.4446739
  16. T. Tanaka, "Interpretation of Several Key Phenomena Peculiar to Nano Dielectrics in terms of a Multi-core Model", IEEE Conf. Electr. Insul. Dielectr. Phenomena (CEIDP), pp. 298-301, 2006.
  17. H. Ishida and S. Rimdusit, "Very high thermal conductivity obtained by boron nitride-filled polybenzoxazine Thermochim", ACTA, Vol. 320, pp. 177-186, 1998.
  18. H. E. Nechmi, A. Beroual, A. Girodet and P. Vinson, "Fluoronitriles/$CO_2$ Gas Mixture as Promising Substitute to SF6 for Insulation in High Voltage Applications", IEEE Transactions on Dielectrics and Electrical Insulation, Vol. 23, No. 5, pp. 2587-2593, October 2016. https://doi.org/10.1109/TDEI.2016.7736816
  19. D.H. Jeong, S.Y. Woo, K.B Seo, J.H Kim, "A study of the insulation property for development of eco-friendly GIS under SF6/N2 mixtures", 2011 1st International Conference on Electric Power Equipment-Switching Technology-Xi'an-China, pp.168-171, 2011
  20. Jae-Jun Park and Jae-Young Lee, "Effect of Epoxymodified Silicone-treated Micro-/NanoSilicas on the Electrical Breakdown Strength of Epoxy/Silica Composites", IEEE Transactions on Dielectrics and Electrical Insulation, Vol. 24, No. 6, pp. 3794-3800, December 2017 https://doi.org/10.1109/TDEI.2017.006609
  21. Jae-Jun Park and Jae-Young Lee, "Surface Modification of Nanosilica with Epoxy-Terminated Silicone and Its Effect on the Electrical Breakdown Strength in Epoxy/Nanosilica Nanocomposite", Journal of Nanoscienceand Nanotechnology, Vol. 17. No. 10. pp. 7598-7602, 2017 https://doi.org/10.1166/jnn.2017.14790
  22. Jae-Jun Park and Jae-Young Lee, "Effect of nano-sized layered silicate on AC electrical treeing behavior of epoxy/layered silicate nanocomposite in needle-plate electrodes", Materials Chemistry and Physics, Vol. 141 pp. 776-780, 2013. https://doi.org/10.1016/j.matchemphys.2013.06.003
  23. Jae-Jun Park and Jae-Young Lee, "AC Electrical Breakdown Phenomena of Epoxy/Layered Silicate Nanocomposite in Needle-Plate Electrodes", Journal of Nanoscience and Nanotechnology, Vol. 13 pp. 3377-3382, 2013.5 https://doi.org/10.1166/jnn.2013.7268
  24. Jae-Jun Park etal 3, "Preparation of Epoxy/Micro-and- Nano-Composites by Electric Field Dispersion Process and Its Mechanical and Electrical Properties", IEEE Transaction on Dielectrics and Electrical Insulation, Vol. 18. No. 3, pp. 667-674, 2011 https://doi.org/10.1109/TDEI.2011.5931051
  25. Jae-Jun Park and Jae-Young Lee, "A New Dispersion Method for the Preparation of Polymer/Organoclay Nanocomposite in the Electric Fields", IEEE TRANSACTIONS ON DIELECTRICS and Electrical Insulation, Vol. 17. No. 5, pp. 1516-1522, 2010 https://doi.org/10.1109/TDEI.2010.5595553
  26. Jae-jun Park, "A Study on the Partial Discharge Resistance Properties of Epoxy/Micro/Nano Alumina Composites", The Transactions of the Korean Institute of Electrical Engineers, Vol. 65, No. 6, pp. 1026-1031, 2016. https://doi.org/10.5370/KIEE.2016.65.6.1026