Ultra-low Electrical and Rheological Percolation Thresholds in PMMA/Plasma-Functionalized CNTs Nanocomposites
- 2 June 2014
- journal article
- research article
- Published by Taylor & Francis in Polymer-Plastics Technology and Engineering
- Vol. 53 (14) , 1450-1455
Abstract
Plasma-functionalized multi-walled carbon nanotubes (p-MWCNTs) are used to fabricate poly (methyl methacrylate) (PMMA) based nanocomposites with different p-MWCNTs loadings. First, MWCNTs are functionalized by He-dielectric barrier discharge plasma followed by an exposure to NH3 and then the PMMA/p-MWCNTs nanocomposites are prepared by a phase inversion-based solution method. The rheological and electrical properties of the PMMA/p-MWCNTs nanocomposites are measured. The results showed that the electrical and rheological percolation thresholds appear at a very low value of 0.5 wt.% p-MWCNTs loading. This value is one of the lowest reported percolation thresholds for PMMA/MWCNTs nanocomposites, indicating excellent dispersion state of the p-MWCNTs in PMMA.Keywords
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