Carbon nanotube-reinforced epoxy-composites: enhanced stiffness and fracture toughness at low nanotube content

Nanocomposites consisting of double-wall carbon nanotubes (DWCNTs) and an epoxy matrix were produced by a standard calandering technique. A very good dispersion of both DWCNTs and carbon black (CB) in an epoxy resin could be observed. The investigation of the (fracture-) mechanical properties result...

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Bibliographic Details
Published in:Composites science and technology 2004-11, Vol.64 (15), p.2363-2371
Main Authors: Gojny, F.H., Wichmann, M.H.G., Köpke, U., Fiedler, B., Schulte, K.
Format: Article
Language:English
Subjects:
Applied sciences
Carbon nanotubes
Composites
Exact sciences and technology
Forms of application and semi-finished materials
Polymer industry, paints, wood
Technology of polymers
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Summary:Nanocomposites consisting of double-wall carbon nanotubes (DWCNTs) and an epoxy matrix were produced by a standard calandering technique. A very good dispersion of both DWCNTs and carbon black (CB) in an epoxy resin could be observed. The investigation of the (fracture-) mechanical properties resulted in an increase of strength, Young's modulus and strain to failure at a nanotube content of only 0.1 wt%. The correlation of the experimentally obtained Young's moduli showed a good agreement with a modified Halpin-Tsai theory. In addition a significantly improved fracture toughness could be observed for the nanocomposites.
ISSN:0266-3538
1879-1050
DOI:10.1016/j.compscitech.2004.04.002