Composites Research

  • 제17권5호
  • /
  • Pages.68-77
  • /
  • 2004
  • /
  • 2288-2103(pISSN)
  • /
  • 2288-2111(eISSN)
한국복합재료학회 (The Korean Society for Composite Materials)
권호 표지

전도성 나노 카본 블랙을 함유한 고분자 재료의 유전특성

Dielectric Characteristics of the Polymers Containing Nano-size Conductive Carbon Black Powders

  • 진우석 (한국과학기술원 기계공학과) ;
  • 이대길 (한국과학기술원 기계공학과)
  • 발행 : 2004.10.01
PDF 다운로드
⟨ 이전 논문 다음 논문 ⟩

초록

레이더 혹은 전자-통신장비에서 방출되는 전자파의 흡수/차폐는 군사적인 목적뿐만 아니라 상업적 목적으로도 매우 중요하다. 효과적인 전자기파 흡수체를 설계하기 위해서는 흡수체에 사용되는 재료의 대상 주파수 대역에서의 전자기적 성질을 정확히 알아야 하며, 손실재의 함량에 따른 정확한 전자기물성 예측이 가능해야 한다 본 연구에서는 전도성 카본 블랙 나노 입자를 함유하는 폴리에스터 복합재료의 유전성질을 자유공간 기법을 이용하여 X-Band 주파수 대역에 걸쳐 측정하고 카본 블랙의 함량에 따라 정량적으로 분석하였으며, 임의의 카본 블랙 함량을 갖는 고분자 수지의 유전 물성을 주파수에 따라 예측할 수 있는 방법을 제시하고 검증하였다.

The electromagnetic (EM) absorption or shielding characteristics of a material is an important issue not only for military purpose but also for commercial purposes such as radar, electric or telecommunication devices. In order to design the effective electromagnetic wave absorber, the electromagnetic characteristics of the constituents of the material should be available in target frequency band. Also, it must be possible to predict the electromagnetic properties of absorbers with respect to the content of lossy ingredients. In this study, the dielectric properties of unsaturated polyester resins containing nano-size conductive carbon black powder were measured with a free space method in the X-band frequency range and analyzed with respect to the content of carbon black. Finally, the method for estimating the dielectric properties of polymeric resin containing conductive carbon black with respect to the EM frequency was developed and verified.

키워드

참고문헌

  1. SAMPE Journal v.27 no.4 Stealth Aircraft & Technology from World War II to the Gulf (Part I: History and Background) Stonier R. A.
  2. 한국복합재료학회지 v.15 no.2 적층 복합재판을 이용한 전자기파 흡수 구조체의 설계 오정훈;오경섭;김천곤;홍창선;이동민
  3. IEEE Transactions on Microwave Theory and Techniques v.44 no.Issue.10 The Dependence of EM Energy Absorption upon Human Head Modeling at 900 MHz Hombach V.;Meier K.;Burkhardt M.;K?hn E.;Kuster N. https://doi.org/10.1109/22.539945
  4. Journal of Applied Polymer Science v.72 Electromagnetic and Electromagnetic Wave-Absorbing Properties of the$SrTiO_3-Epoxy$ Composite Choi H. D.;Shim H. W.;Cho K. Y.;Lee H. J.;Park C. S.; Yoon H. G. https://doi.org/10.1002/(SICI)1097-4628(19990404)72:1<75::AID-APP8>3.0.CO;2-T
  5. Journal of Microwave Power and Electromagnetic Energy v.26 no.1 Solid and Particulate Material Permittivity Relationships Nelson S.;Kraszewski A.;You T. https://doi.org/10.1080/08327823.1991.11688138
  6. Physikalische. Zeitschrift v.32 Die Herleitung dos logarithmischen Mischungsgesetz es aus Allgemeinen Prinzipien der Stationaren Stomung Lichtenecker K.;Rother K.
  7. Philosophical Transactions of the Royal Society of London v.203 Colours in Metal Classes and in Metallic Films Maxwell-Garnett J. C. https://doi.org/10.1098/rsta.1904.0024
  8. Annalen der Physik(Leipzig) v.24 Berechnung Verschiedener Physikalischer Konstanten von Heterogenen Substanzen. I. Dielektrizitatskonstanten und Leitfahigkeiten der Mischkorper aus Isotropen Substanzen Bruggeman D. A. G.
  9. Physica v.31 Dielectric Constants of Heterogeneous Mixtures Looyenga H. https://doi.org/10.1016/0031-8914(65)90045-5
  10. Journal of Applied Polymer Science v.73 Microwave Properties of Carbon Black-Epoxy Resin Composites and Their Simulation by Means of Mixture Laws Achour, M. E.;Malhi, M. El.;Miane, J. L.;Carmona, F.;Lahjomri, F. https://doi.org/10.1002/(SICI)1097-4628(19990808)73:6<969::AID-APP14>3.0.CO;2-1
  11. 한국복합재료학회지 v.16 no.2 카본 블렉을 함유한 복합재 적층파의 유전율 김진봉;김태욱
  12. IEEE Transactions on Instrumentation and Measurement v.IM-23 Precise Measurements on Dielectric and Magnetic Materials Lynch A. C.
  13. IEEE Transactions on Instrumentation and Measurement v.IM-33 Simultaneous Measurement of Complex Permittivity and Permeability in the Millimeter Region by a Frequency-domain Technique Kadaba P. K.
  14. IEEE Transactions on Instrumentation and Measurement v.37 no.3 A Free-Space Method for Measurement of Dielectric Constants and LossTangents at Microwave Frequencies Ghodgaonkar, D. K.;Varadan, V. V.;Varadan, V. K.
  15. Radio Science v.22 no.7 A New Free-Wave Method for Ferrite Measurement at Millimeter Wavelengths Cullen A. L. https://doi.org/10.1029/RS022i007p01168
  16. Microwave Measurements of Complex Permittivity by Free Space Methods and Their Applications Musil J.;Zacek F.
  17. IEEE Transactions on Microwave Theory and Techniques v.38 no.8 Improved Technique for Determining Complex Permittivity with the Transmission/Reflection Method Baker-Jarvis, J.;Vanzura, E. J.;Kissick, W. A. https://doi.org/10.1109/22.57336