Advanced Composite Materials

The Korean Society for Composite Materials (한국복합재료학회)
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Mechanical Properties of MWNT-Loaded Plain-Weave Glass/Epoxy Composites

  • Kim, Myung-Sub (Department of Aerospace Engineering, School of Mechanical Aerospace and Systems Engineering, KAIST) ;
  • Lee, Sang-Eui (Department of Aerospace Engineering, School of Mechanical Aerospace and Systems Engineering, KAIST) ;
  • Lee, Won-Jun (Department of Aerospace Engineering, School of Mechanical Aerospace and Systems Engineering, KAIST) ;
  • Kim, Chun-Gon (Department of Aerospace Engineering, School of Mechanical Aerospace and Systems Engineering, KAIST)
  • Received : 2007.12.20
  • Accepted : 2008.06.04
  • Published : 2009.09.01
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Abstract

Carbon nanotubes (CNTs) have shown great potential for the reinforcement of polymers or fiber-reinforced composites. In this study, mechanical properties of multi-walled carbon nanotube (MWNT)-filled plain-weave glass/epoxy composites intended for use in radar absorbing structures were evaluated with regard to filler loading, microstructure, and fiber volume fraction. The plain-weave composites containing MWNTs exhibited improved matrix-dominant and interlaminar fracture-related properties, that is, compressive and interlaminar shear strength. This is attributed to strengthening of the matrix rich region and the interface between glass yarns by the MWNTs. However, tensile properties were only slightly affected by the addition of MWNTs, as they are fiber-dominant properties.

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