Thermal Expansion and Diffusion Coefficients of Carbon Nanotube-Polymer Composites

Details Thermal Expansion and Diffusion Coefficients of Carbon Nanotube-Polymer Composites Thermal Expansion and Diffusion Coefficients of Carbon Nanotube-Polymer Composites

2002-03-17

arxiv.org/abs/cond-mat/0203349v1

Physics

Condensed Matter

Materials Science

11 pages, 5 figures, recently submitted for publication

Scientific paper

Classical molecular dynamics (MD) simulations employing Brenner potential for intra-nanotube interactions and Van der Waals forces for polymer-nanotube interfaces are used to invetigate the thermal expansion and diffusion characteristics of carbon nanotube-polyethylene composites. Additions of carbon nanotubes to polymer matrix are found to increase the glass transition temperature Tg, and thermal expansion and diffusion coefficients in the composite above Tg. These findings could have implications in CNT composite processing, coating and painting applications.

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