Polyacrylonitrile/carbon nanotube composite films.

ACS Appl Mater Interfaces

The School of Polymer, Textile and Fiber Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332, USA.

Published: May 2010

Reinforcement efficiency of different types of carbon nanotubes (CNT) have been compared in polyacrylonitrile (PAN) films at nanotube loadings of 5, 10, and 20 wt %. The films are characterized for mechanical, dynamic-mechanical, and thermomechanical properties, electrical conductivity, as well as structural analysis. PAN/CNT composite films exhibit electrical conductivities up to 5500 S/m. Based on X-ray diffraction, PAN crystallinity was shown to increase with the presence of CNT. PAN-CNT interactions in the various composites were compared using conventional activation energy analysis. The strongest physical interaction between PAN and CNT was found in samples containing single-wall carbon nanotubes (SWNT). CNT surface area was also measured using nitrogen gas adsorption and correlated with PAN-CNT composite film mechanical properties, in an effort to better understand PAN-CNT interactions for different CNT morphologies. Solvent behavior of various composite films has also been investigated. The presence of CNT was found to improve PAN solvent resistance.

Download full-text PDF

Source
http://dx.doi.org/10.1021/am100155xDOI Listing

Publication Analysis

Top Keywords

composite films
12
carbon nanotubes
8
presence cnt
8
pan-cnt interactions
8
cnt
6
films
5
polyacrylonitrile/carbon nanotube
4
composite
4
nanotube composite
4
films reinforcement
4

Similar Publications

Want AI Summaries of new PubMed Abstracts delivered to your In-box?

Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!