Paper Title:
Enhanced Dispersion of MWCNTs and Synergistic Properties in Multiphase Epoxy Nanocomposites by Incorporation of Inorganic Nanoparticles
  Abstract

In the present work we report that the addition of inorganic nanoparticles to MWCNT epoxy composites leads to the formation of a hybrid structures which cause different states of dispersion for the multiphase nanocomposites containing either MWCNTs and titania or MWCNTs and silica. The microstructure is characterised by titania nanoparticles attached to the surface of MWCNTs leading to an enhanced dispersion of MWCNTs. The hydrophilic surface of fumed silica nanoparticles causes the formation of independent networks of silica and MWCNTs. Therefore, the change of the state of dispersion is less pronounced compared to the MWCNT/titania structures. Changes in the state of dispersion lead to a decrease in electrical conductivity for the MWCNT/titania systems. Conversely, an almost independent behaviour was found for the MWCNT/silica nanocomposites due to their interpenetrating networks. Besides the altered state of dispersion, the hybrid structure leads synergistic effects in terms of the glass transition of the nanocomposites. Although a decrease of the glass transition temperature (Tg) is observed for the nanocomposites containing only one kind of filler, the combination of nanoparticles can reduce the decrease of Tg.

  Info
Periodical
Solid State Phenomena (Volume 151)
Edited by
Erich Kny
Pages
176-180
DOI
10.4028/www.scientific.net/SSP.151.176
Citation
J. Sumfleth, L. A. S. de A. Prado, S. Richau, M. Sriyai, K. Schulte, "Enhanced Dispersion of MWCNTs and Synergistic Properties in Multiphase Epoxy Nanocomposites by Incorporation of Inorganic Nanoparticles", Solid State Phenomena, Vol. 151, pp. 176-180, 2009
Online since
April 2009
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Marcelo Antunes, Vera Realinho, E. Solórzano, Miguel A. Rodríguez-Pérez, Jose A. de Saja, Jose Ignacio Velasco
Abstract:Carbon nanofibre-reinforced polypropylene nanocomposites containing from 5 to 20 wt.% of carbon nanofibres and a chemical blowing agent were...
996
Authors: Hai Yun Jin, Hui Cheng Shi, Bo He, Nai Kui Gao, Zeng Ren Peng
Abstract:AlN filled epoxy composites were fabricated. The microstructure of composites was observed by SEM. The thermal conductivity was also...
460
Authors: Afarin Bahrami, Z.A. Talib, W. Mahmood Mat Yunus, Kasra Behzad, Nayereh Soltani
Abstract:This study describes the preparation of polypyrrole multiwall carbon nanotube (PPy/MWNT) composites by in situ chemical oxidative...
50
Authors: Zheng Chen, Rui Qi Li, Qing Guo
Chapter 12: Functional Materials
Abstract:Conductive polyaniline(PANI) was synthesized by chemical oxidative copolymerization , using dodecylbenzene sulfonic acid (DBSA)as doping...
1166
Authors: Mi Dan Li, Yao Lu, Lu Lu Feng, Huan Niu, Ya Wen Kong
Chapter 2: Research on Materials,Mechanics and Technologies
Abstract:Composites made from phenolic resin are filled with conductive filler mixtures containing copper powders, natural graphite powders and carbon...
120