Mechanical Properties of MWNT-Loaded Plain-Weave Glass/Epoxy Composites

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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.

Keywords: INTERLAMINAR FRACTURE; MECHANICAL PROPERTY; MULTI-WALLED CARBON NANOTUBE; PLAIN-WEAVE COMPOSITE

Document Type: Research Article

DOI: http://dx.doi.org/10.1163/156855109X428826

Affiliations: Department of Aerospace Engineering, School of Mechanical Aerospace and Systems Engineering, KAIST, 371-1, Kuseong-dong, Yuseong-Gu, Daejeon, 305-701, South Korea

Publication date: August 1, 2009

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