Please use this identifier to cite or link to this item: https://doi.org/10.15480/882.266
Fulltext available Open Access
Publisher DOI: 10.1016/j.compscitech.2006.02.037
Title: Two percolation thresholds in carbon nanotube epoxy composites
Language: English
Authors: Lott, Josef-Zoltan 
Velagala, Bala S. 
Schulte, Karl 
Bauhofer, Wolfgang 
Keywords: Carbon nanotubes;Epoxy matrix;Electrical properties;Percolation;Network formation
Issue Date: 2006
Publisher: Elsevier
Source: Composites Science and Technology Volume 67, Issue 5, April 2007, Pages 922-928
Journal or Series Name: Composites science and technology 
Abstract (english): The results presented in this paper reveal the first evidence that two types of percolation thresholds can coexist in an insulator-conductor-system, the higher one attributed to a static and the lower one to a kinetic network formation process. Detailed measurements at concentrations above the statistical percolation threshold show a power law dependence of conductivity on filler concentration (with an exponent of 2.7) that is independent of the processing condition. A simplified model of percolated particles was developed in order to relate the sample conductivity to the contact resistance between individual particles embedded within a polymer matrix. Our results are compared with previous studies in order to correlate the contact resistance values to different materials and processing conditions.
URI: http://tubdok.tub.tuhh.de/handle/11420/268
DOI: 10.15480/882.266
Institute: Optische und Elektronische Materialien E-12 
Kunststoffe und Verbundwerkstoffe M-11 
Type: Preprint (Vorabdruck)
Appears in Collections:Publications with fulltext

Files in This Item:
File Description SizeFormat
Article_5._free.pdf1,76 MBAdobe PDFThumbnail
View/Open
Show full item record

Page view(s)

491
Last Week
3
Last month
3
checked on May 30, 2020

Download(s)

814
checked on May 30, 2020

Google ScholarTM

Check

Note about this record

Export

Items in TORE are protected by copyright, with all rights reserved, unless otherwise indicated.