Manufacture and Mechanical Properties of Carbon Nanofiber Reinforced Hybrid Composites

탄소나노섬유가 강화된 하이브리드 복합재료의 제조 및 기계적 특성

  • 정상수 (한국기계연구원 복합재료그룹) ;
  • 박지상 (한국기계연구원 복합재료그룹) ;
  • 김태욱 (한국기계연구원 복합재료그룹) ;
  • 공진우 (한국기계연구원 복합재료그룹)
  • Published : 2005.06.01

Abstract

Carbon nanofiber exhibits superior and of ien unique characteristics of mechanical, electrical, chemical and thermal properties. Despite of the excellent properties of carbon nanofiber, the properties of carbon nanofiber filled polymer composites were not increased largely. The reason is that it is still difficult to ensure the uniform dispersion of carbon nanofiber in a polymer matrix. In this study, for improvement of the mechanical properties of composites, carbon nanofiber reinforced hybrid composites was investigated. For the dispersion of carbon nanofiber. solution blending method using ultrasonic was used. Dispersion of carbon nanoifiber was observed by scanning electron microscope (SEH). Mechanical properties were measured by universal testing machine(UTM).

탄소나노섬유는 기계적, 전기적, 화학적, 열적 성질 등의 우수하고, 독특한 특성을 가진다. 이러한 탄소나노섬유의 우수한 물성에도 불구하고, 탄소나노섬유가 강화된 고분자 복합재료의 물성은 비례적으로 증가하지 않는다. 이러한 원인은 탄소나노섬유가 고분자 재료 내에 고루 분산되지 못하기 때문이다. 본 연구에서는 복합재료의 기계적 물성을 향상시키기 위해, 탄소나노섬유가 강화된 하이브리드 복합재료에 대한 연구를 수행하였다. 탄소나노섬유의 고른 분산을 위해, 초음파 분산장치를 이용한 용융 혼합방법을 이용하였고, 전자현미경(SEM)을 통해 탄소나노섬유의 분산정도를 확인하였으며, 만능시험기(UTM)를 이용하여 탄소나노섬유가 강화된 하이브리드 복합재료의 기계적 물성을 평가하였다.

Keywords

References

  1. A. A. Aliyu and I. Daniel, in 'Delamination and debonding of materials,' ed American Society for Testing and Materials, 1985(ASTM STP 876), pp. 336-348
  2. G. A. Schoeppner and S. Abrate, 'Delamination threshold loads for low velocity impact on composite laminates,' Composite: Part A. Vol. 31, 2000, pp. 903-915 https://doi.org/10.1016/S1359-835X(00)00061-0
  3. 전의진, 이우일, 윤광준, 김태욱, '최신복합재료,' (주) 교학사, 1995
  4. H. Ma, 'Processing, structure, and properties of fibers form polymer/carbon nanofiber composites,' Compo Sci. & Tech.. Vol. 65, 2003, pp. 1617-1628
  5. J. A. Johnson, 'Dispersion and film properties of carbon nanofiber pigmented conductive coatioins,' Progress in organic Coatings. Vol. 47, 2003, 198-206 https://doi.org/10.1016/S0300-9440(03)00139-5
  6. A. J. Wagner, 'Processing and properties of carbon nanofiber/epoxy vinyl ester resin composites,' SAMPE, 2003
  7. S. H. Lee, 'Tensile properties and fatigue characteristics of hybrid composites with non-woven carbon tissue,' International Journal of Fatigue. Vol. 24, 2002, pp. 397-405 https://doi.org/10.1016/S0142-1123(01)00095-0
  8. A. Allaoui, 'Mechanical and electrical properties of a MWNT/epoxy composite,' Compo Sci. & Tech., Vol. 62, 2002, pp. 1993-1998 https://doi.org/10.1016/S0266-3538(02)00129-X
  9. J. W. Kong, T. W. Kim, 'A study on mechanical properties of carbon nanofiber/epoxy composites with dispersion methods,' 한국복합재료학회 춘계학술논문집, 2004, pp. 151-154
  10. M. Hussain, 'Mechanical property improvement of carbon fiber reinforced epoxy composites by AL203 filler dispersion,' Materials Letters. Vol. 26, 1996, pp. 185-191 https://doi.org/10.1016/0167-577X(95)00224-3
  11. J. M. Park, D. S. Kim, J. R. Lee, T. W. Kim, 'Nondestructive damage sensitivity and reinforcing effect of carbon nanotube/epoxy composites using electro-micromechanical technique,' Materials Science & Engineering C, Vol. 23, 2003, pp. 971-975 https://doi.org/10.1016/j.msec.2003.09.131
  12. S. Kumar, H. Doshi, M. Srinivasarao, J. O. Park, D. A. Schiraldi, 'Fibers from polypropylene/nano carbon fiber composites,' Polymer. Vol. 43, 2002, pp. 1701-1703 https://doi.org/10.1016/S0032-3861(01)00744-3