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Effect of the addition of multi-walled carbon nanotubes on the thermomechanical properties of epoxy resin

journal contribution
posted on 19.04.2021, 04:49 authored by Jung-Hoon SulJung-Hoon Sul, B Gangadhara Prusty, Alan Crosky
The influence of multi‐walled carbon nanotubes (MWCNTs) on thermosetting epoxy is examined using dynamic mechanical analysis, thermogravimetric analysis, and differential scanning calorimetry (DSC). Specimens are prepared with loadings of 0.1 and 1 wt% MWCNTs which are dispersed in the resin using two different dispersion methods. While the storage modulus of the specimens is improved, both the glass transition temperature and the thermal stability are reduced by the addition of MWCNTs with both effects being greater for the higher MWCNT loading, for both dispersion systems. The DSC results additionally indicate that the level of residual unreacted epoxy increases progressively with the addition of the nanotubes. This finding is considered as confirmation that the MWCNTs obstruct crosslinking of the epoxy resin.

History

Volume

38

Issue

9

Start Page

1873

End Page

1880

Number of Pages

8

eISSN

1548-0569

ISSN

0272-8397

Publisher

Wiley

Peer Reviewed

Yes

Open Access

No

External Author Affiliations

UNSW Australia

Era Eligible

Yes

Journal

Polymer Composites