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Structural Nanocomposite Bonding Reinforced by Graphite Nanofibers with Surface Treatments

Published online by Cambridge University Press:  01 February 2011

L. Roy Xu
Affiliation:
Department of Civil and Environmental Engineering, Vanderbilt University, Nashville, TN 37235, USA
Charles M. Lukehart
Affiliation:
Department of Chemistry, Vanderbilt University, Nashville, TN 37235, USA
Lang Li
Affiliation:
Department of Chemistry, Vanderbilt University, Nashville, TN 37235, USA
Sreeparna Sengupta
Affiliation:
Department of Civil and Environmental Engineering, Vanderbilt University, Nashville, TN 37235, USA
Ping Wang
Affiliation:
Department of Civil and Environmental Engineering, Vanderbilt University, Nashville, TN 37235, USA
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Abstract

Graphitic carbon nanofibers were used to reinforce epoxy resin to form nanocomposite adhesive bonding. GCNFs having a herringbone atomic structure are surface-derivatized with bifunctional hexanediamine linker molecules capable of covalent binding to an epoxy matrix during thermal curing and are cut to smaller dimension using ultrasonication. Good dispersion and polymer wetting of the GCNF component is evident on the nanoscale. Tensile and shear joint strength measurements were conducted for metal-metal and polymer-polymer joints using pure epoxy and nanocomposite bonding. Very little bonding strength increase, or some bonding strength decrease, was measured.

Type
Research Article
Copyright
Copyright © Materials Research Society 2005

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