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Enhancement in the thermomechanical properties of carbon fibre-carbon nanotubes-epoxy hybrid composites

IR@NPL: CSIR-National Physical Laboratory, New Delhi

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Title Enhancement in the thermomechanical properties of carbon fibre-carbon nanotubes-epoxy hybrid composites
 
Creator Mathur, R. B.
Singh, B. P.
Tiwari, Pankaj K.
Gupta, T. K.
Choudhary, Veena
 
Subject Materials Science
Nanoscience/ Nanotechnology
 
Description Multiwalled carbon nanotubes (MWCNTs) were grown on carbon fibre (CF) cloth substrates by chemical vapour deposition (CVD) that resulted in strong anchoring of these tubes on the CF surface. These hybrid preforms were used as the reinforcement in epoxy resin matrix to develop hybrid or multiscale CF-MWCNT/epoxy composites (CF-MWCNT/epoxy). The flexural strength (FS) as well as the flexural modulus (FM) of these composites was found to increase with increasing amount of CNTs grown on CF surface. FS of the hybrid composites improved by 80%, i.e., 560 MPa when compared with 310 MPa for the base composite (CF/epoxy) prepared under identical conditions. FM of these composites also improved by 120%, i.e., 55 GPa for the hybrid composite when compared with 25 GPa for the base composite. The in-plane and the transverse thermal conductivity of these hybrid composites improved from 17.68 W/mK and 1.79 W/mK, respectively, for base composite to 29.05 W/mK to 2.61 W/mK for the hybrid composite.
 
Publisher Inderscience
 
Date 2012
 
Type Article
PeerReviewed
 
Format application/pdf
 
Identifier http://npl.csircentral.net/3583/1/Enhancement%20in%20the%20thermomechanical.pdf
Mathur, R. B. and Singh, B. P. and Tiwari, Pankaj K. and Gupta, T. K. and Choudhary, Veena (2012) Enhancement in the thermomechanical properties of carbon fibre-carbon nanotubes-epoxy hybrid composites. International Journal of Nanotechnology , 9 (10-12). pp. 1040-1049. ISSN 1475-7435
 
Relation http://npl.csircentral.net/3583/