Rubber-toughened epoxy loaded with carbon nanotubes: structure–property relationships

The paper reports on the preparation, structure and properties of ternary thermosetting blends, based on DGEBA epoxy, cured with 3,3′-DDS and modified by the addition of CTBN reactive liquid rubber and/or 0.3 wt% of commercial multi-walled carbon nanotubes. The toughening effect of the phase-separat...

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Bibliographic Details
Published in:Journal of materials science 2010-05, Vol.45 (10), p.2633-2639
Main Authors: Salinas-Ruiz, Maria d. M., Skordos, Alex A., Partridge, Ivana K.
Format: Article
Language:English
Subjects:
Acrylonitrile butadiene resins
Carbon nanotubes
Carbon-epoxy composites
Characterization and Evaluation of Materials
Chemistry and Materials Science
Classical Mechanics
Crystallography and Scattering Methods
Electric properties
Electrical conductivity
Electrical resistivity
Epoxy resins
Materials Science
Mechanical properties
Morphology
Multi wall carbon nanotubes
Nanotubes
Polymer blends
Polymer Sciences
Rubber
Solid Mechanics
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Summary:The paper reports on the preparation, structure and properties of ternary thermosetting blends, based on DGEBA epoxy, cured with 3,3′-DDS and modified by the addition of CTBN reactive liquid rubber and/or 0.3 wt% of commercial multi-walled carbon nanotubes. The toughening effect of the phase-separated rubber particles is enhanced by the presence of the nanotubes, through a change in the morphology. In the absence of the rubber, the nanotubes alone produce a minimal effect upon the thermo-mechanical characteristics of the resin. However, the electrical conductivity of the cured resin samples is found to increase by five orders of magnitude, up to 3.6 × 10 −3 S/m in the ternary blend.
ISSN:0022-2461
1573-4803
DOI:10.1007/s10853-010-4241-x