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Polymers and Polymer Composites

IMPROVEMENT IN MECHANICAL AND THERMO-MECHANICAL PROPERTIES OF CARBON FIBRE/EPOXY COMPOSITES USING CARBOXYL FUNCTIONALIZED MULTI-WALLED CARBON NANOTUBES

August 1, 2013 By: Salam M B A; Hosur M V; Jahan N; Rahman M M; Jeelani S Research article

Title: IMPROVEMENT IN MECHANICAL AND THERMO-MECHANICAL PROPERTIES OF CARBON FIBRE/EPOXY COMPOSITES USING CARBOXYL FUNCTIONALIZED MULTI-WALLED CARBON NANOTUBES
Page Range: p.495-508
Author(s): Salam M B A; Hosur M V; Jahan N; Rahman M M; Jeelani S
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Journal: Polymers and Polymer Composites
Issue Year: ppc
Volume: 21
Issue No: No.8

Abstract
Investigations were carried out to optimize mechanical and thermal performances of carbon fibre/epoxy composites modified with functionalised carbon nanotubes. For fabricating carbon fibre/epoxy nanocomposites, 0.1-0.4 wt.% carboxyl-functionalized multi-walled carbon nanotubes (MWCNTs-COOH) were incorporated in an epoxy system. Laminates were cured at a temperature of 65.55 degrees C. The effects of MWCNT on flexural, interlaminar shear strength (ILSS), tensile and thermo-mechanical properties of carbon fibre/epoxy composites were studied. The results obtained from flexural, ILSS, tensile and dynamic mechanical analysis (DMA) of carbon fibre/epoxy demonstrated a linearly increasing trend in properties up to 0.3 wt.% MWCNT loading. Results obtained from the thermal mechanical analysis showed a linearly decreasing trend in coefficient of thermal expansion up to 0.3 wt.% MWCNT loading. The properties were lower at 0.4 wt.%, due to agglomeration that may have resulted in poor wetting of the carbon fibres. 39 Refs.

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