DOI QR코드

DOI QR Code

Dielectric Properties of Epoxy Composites with Varying Frequency

에폭시 복합체의 주파수 변화에 따른 유전특성

  • Lee, Ho-Shik (Department of Health Administration, Dongshin University)
  • Received : 2018.07.16
  • Accepted : 2018.09.19
  • Published : 2018.09.30

Abstract

In order to study electrical properties of epoxy composites with various frequency. To measure of dielectric characteristics have been performed over a frequency range from 30[Hz] to 3[MHz] and a temperature range of $20[^{\circ}C]$, $100[^{\circ}C]$, $140[^{\circ}C]$. We observed values of dielectric constant and dissipation of the epoxy composites with various frequency. We were observed dielectric loss and dispersion in low frequency region. Also, we observed to decrease of the dielectric constant due to the effects of filler in high temperature region.

주파수 변화에 따른 에폭시 복합체의 전기적 특성을 알아보기 위하여 온도 범위 $20[^{\circ}C]$, $100[^{\circ}C]$, $140[^{\circ}C]$, 주파수 범위 30[Hz]~3[MHz] 사에서 유전율 및 유전손실을 측정하였다. 저주파 영역에서 유전분산과 유전 손실이 나타나고 있음을 확인하였다. 또한 고온 영역에서는 충진제의 영향으로 유전율이 감소하는 것을 확인하였다.

Keywords

References

  1. Clayton May, "Epoxy Resins: Chemistry and Technology, Second Edition", CRC Press, (1987).
  2. Nanjunda Gowda, Shivananda Kammasandra, Mahendra, Kadidal Nagappa, "Preparation and Curing Studies of Maleimide Bisphnol-A Based Epoxy Resins", Bull. Korean Chem. Soc., Vol. 27, No. 10, pp. 1542-1548, (2006). https://doi.org/10.5012/bkcs.2006.27.10.1542
  3. Jacqueline I, Kroschwitz, "High Performance Polymers and Composites", Wiley: New York, (1991).
  4. K. H. Park, Y. S. Lee, J. Y. Song, Y. Lee, S. I, Kim, "The Effect of Thermal Decomposition of Epoxy Resin for an Variation of Hardner", J. of Oil Chemists' Soc., Vol. 24, No. 4, pp. 393-398, (2007).
  5. S. K. Kim, P. W. Shin, D. C. Lee, "Synthesis of Water Soluble Acrylic Modified Epoxyester Resin and Physical Properties of Coating", J. of Oil Chemists' Soc., Vol. 28, No. 1, pp. 36-47, (2011).
  6. T. F. Mika and R. S. Bauer, "Curing Agents and Modifiers : Epoxy Resins, Chemistry and Technology,", Marcel Dekker, Inc., New York and Basel, (1973).
  7. W. R. Ashcroft, "Curing Agents for Epoxy Resins-Chemistry and Technology of Epoxy Resins", Blackie Academic & Professional, pp. 37-71, (1993).
  8. Rudolf Zbinden, "Infrared Spectroscopy of High Polymers", Academic Press; Yorkland London, (1964).
  9. Gray C. Stevens, "Cure Kinetics of High Epoxide/Hydroxyl Group-Ratio Bisphenol A Epoxy Resins-Anhydride System at Infrared Absorption Spectroscopy", J. of Appl. Poly. Sci., Vol. 26, No. 1, pp. 4279-4297, (1981). https://doi.org/10.1002/app.1981.070261226
  10. P. C. Painter, M. M. Coleman, J. K. Koening, "The Theory of Vibrational Spectroscopy and It's Application to Polymeric Materials", John Wiely & Sons: New York-Chichestor, (1982).
  11. Vera V. Daniel, "Dielectric Relaxation", Academic Press Inc., (1967).
  12. P. Hedvig," Dielectric Spectroscopy od Polyners", Adam Higher: Bristol, (1977).
  13. S. D. Senturia, N. F. Sheppard, "Dielectric Analysis of Thermoset Cure: Epoxy Resin and Composites IV", Springer-Verlag, Berlin Heidelberg, (1986).
  14. J. Y. Han, M. H. Kim, S. S. Kang, "A Study of Physical Property od Epoxy Resin Due to After-Curing Condition", J. of the Korean Society of Manufacturing Technology Engineers, Vol. 21, No. 12, pp. 976-981, (2012). https://doi.org/10.7735/ksmte.2012.21.6.976
  15. S. Han, W. G. Kim, S, D. Hwang, H. G. Yoon, K. S Suh, T. J. Moon, "Glass Transition Temperature of Bishenyl-Type Epoxy/Phenol Novolac Resin System", J. of Korean Polymer, Vol. 22, No. 5, pp. 691-698, (1998).