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Carbon Nanotube Dispersion in Epoxy Nanocomposites with Clay

Published online by Cambridge University Press:  01 February 2011

Lei Liu  and
Jaime Grunlan
Lei Liu
Affiliation:
liulei@tamu.edu, Texas A&M University, Materials Science and Engineering, 3003 TAMU, College Station, TX, 77843, United States
Jaime Grunlan
Affiliation:
jgrunlan@tamu.edu, Texas A&M University, Materials Science and Engineering, 3003 TAMU, College Station, TX, 77843, United States
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Abstract

Clay particles were used to facilitate the dispersion and network formation of single-walled carbon nanotubes (SWNTs) in an epoxy matrix. In the presence of clay, electrical conductivity increase and percolation threshold reduction for SWNT/epoxy composites were achieved simultaneously. These improvements are due to better SWNT dispersion, as evidenced by optical microscopy and scanning electron microscopy. Dynamic mechanical analysis (DMA) shows that mechanical properties of the composites without clay could be improved by clay addition. SWNTs appear to have an affinity for clay that causes them to become more exfoliated and better networked.

Keywords

polymercompositenanostructure
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1057: Symposium II – Nanotubes and Related Nanostructures , 2007 , 1057-II20-15
Copyright
Copyright © Materials Research Society 2008

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