한국정밀공학회지 (Journal of the Korean Society for Precision Engineering)

  • 제23권8호
  • /
  • Pages.100-107
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  • 2006
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  • 1225-9071(pISSN)
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  • 2287-8769(eISSN)
한국정밀공학회 (Korean Society for Precision Engineering)
권호 표지

메탈 파우더와 나노 카본 블랙/섬유강화 복합재료의 전자파 차폐효과에 관한 연구

A Study on Electromagnetic Interference Shielding Effectiveness of the Metal Powders and Nano Carbon black /Fiber Reinforced Epoxy composites

  • 한길영 (조선대학교 기계공학과) ;
  • 김진석 (조선대학교 대학원 기계공학과) ;
  • 안동규 (조선대학교 기계공학과)
  • 발행 : 2006.08.01
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초록

The objective of this research is to investigate the electromagnetic interference(EMI) shielding characteristics of fiber reinforced composites. We fabricated glass and carbon fiber reinforced composites filled with metal powder and nano carbon black. The measurements of shielding effectiveness(SE) were carried out frequency range 300MHz - 1GHz for commercial purposes such as electric or telecommunication devices. The return loss and loss due to absorption were also measured as a function of frequency in the micro wave(300MHz-1GHz) region. It is observed that the SE of the composites is the frequency dependent, increase with the increases in filler loading. The Mg metal powder filled composite showed higher SE compared to that of carbon black. The Mg metal powder/epoxy composite was shown to exhibit up to 40dB of SE. The results indicates that the composite having higher filler loading can be used for the purpose of EMI shielding as well as for some microwave applications.

키워드

참고문헌

  1. 김덕원,'전자파공해,' 수문사, p. 1, 1996
  2. Lee, S. J. and Lee, T. I., 'A Study on the Effects of Electroencephalogram of Blocking Electromagnetic Wave Materials by using the Nano Siver,' J. of the KSCI, Vol. 6, No. 2, pp. 810-813, 2004
  3. Lee, S. J. and Lee, T. I., 'A Study on the Effects of Electromagnetic Wave on Human Body,' J. of the KSCI, Vol. 6, No. 4, pp. 505-510, 2004
  4. Chin, W. S. and Lee, D. G, 'Dielectric Characteristics of the Polymers Containing Nano-size Condictive Carbon Black Powders,' J. of the KSCM, Vol. 17, No. ？5, pp. 8-77, 2004.
  5. Chung, D. D. L., 'Electromagnetic interference shielding effectiveness of carbon materials,' Carbon, Vol. 39, pp. 279-285, 2001 https://doi.org/10.1016/S0008-6223(00)00184-6
  6. Kim, H. M., Kim, K., Lee, S. J., Joo, J., Yoon, H. S., Cho, S. J., Lyu, S. C. and Lee, C. J., 'Charge transport properties of composites of multi walled carbon nanotube with metal catalyst and polymer: application to electromagnetic interference shielding,' Current Applied Physics, Vol. 4, pp. 577-580, 2004 https://doi.org/10.1016/j.cap.2004.01.022
  7. Chen, H. C., Lee, K. C. and Lin, J. H., 'Electromagnetic and electrostatic shielding properties of co-weaving-knitting fabrics reinforced composites,' Composites Part A, Vol. 35, pp. 1249-1256, 2004 https://doi.org/10.1016/j.compositesa.2004.04.006
  8. Yang, S., Lozano, K., Lomeli, A., Foltz, H. D. and Jones, R., 'Electromagnetic interference shielding effectiveness of carbon nanofiber/LCP composites,' Composites Part A, Vol. 36, pp. 691-697,2005 https://doi.org/10.1016/j.compositesa.2004.07.009
  9. Yuping, D., Shunhua, L. and Hongtao, G., 'Investigation of electrical conductivity and electromagnetic shielding effectiveness of polyaniline composite,' Science and Technology of Advanced Materials, pp. 1-6, 2005 https://doi.org/10.1016/j.stam.2005.01.002
  10. Jung, W. K., Ahn, S. H. And Won, M. S., 'Comparison of Electromagnetic-Wave Shielding Effect in Glass Fiber Reinforced Nano Composites,' J. of the KSPE, Vol. 22, No. 10, pp. 121-128,2005
  11. Jana, P. B., Mallick, A. K. and De, S. K., 'Electromagnetic interference shielding by carbon fiber-filled polychl-oroprene rubber composites,' Composites, Vol. 22, pp. 451-455, 1991 https://doi.org/10.1016/0010-4361(91)90204-T
  12. Baker, Z. Q., Abelazeez, M. K. and Zihlif, A. M., 'Measurements of the 'Magrey DC' characteristics at microwave frequencies,' Journal of materials science, Vol. 23, No. 8, pp. 2995-3000, 1988 https://doi.org/10.1007/BF00547481
  13. Oshwa, Z. and Kobayashi, K., 'Thermal stability of shielding effectiveness of composites to electromagnetic interference,' Polymer degradation and stability, Vol. 35, pp. 33-43, 1992 https://doi.org/10.1016/0141-3910(92)90132-O
  14. Das, N. C., Khastgir, D. and Chaki, T. K., 'Electromagnetic interference shielding effectiveness of carbon black and carbon fiber filled EVA and NR based composites,' Composites Part A, Vol. 31, pp. 1069-1081, 2000 https://doi.org/10.1016/S1359-835X(00)00064-6