Paper Title:
Preparation and Electrical Properties of the Polyimide/Multi-Walled Carbon Nanotubes (MWNTs) Nanocomposites
  Abstract

The polyimide/multi-walled carbon nanotubes (MWNTs) nanocomposite films were prepared by means of ultrasonic blending and in-situ polymerization. MWNTs were modified with mixed strong acid in order to improve the chemical compatibility between polyimide matrix and MWNTs. The effects of the incorporation of MWNTs on the electrical property were researched in this study. The results showed that with the increase of the content of acid-modified MWNTs, the dielectric strength decreased gradually and had a sharp drop when the addition content was close to 0.6 wt%, the dielectric constant and the dielectric loss factor increased obviously. With the rise of the test frequency, the dielectric constant declined slowly and the dielectric loss factor increased. The corona resistance time of the nanocomposite films was all higher than that of the pure polyimide.

  Info
Periodical
Materials Science Forum (Volumes 675-677)
Edited by
Yi Tan and Dongying Ju
Pages
1237-1240
DOI
10.4028/www.scientific.net/MSF.675-677.1237
Citation
M. Y. Zhang, X. Y. Zhu, P. H. Diao, W. J. Wang, X. D. Li, "Preparation and Electrical Properties of the Polyimide/Multi-Walled Carbon Nanotubes (MWNTs) Nanocomposites", Materials Science Forum, Vols. 675-677, pp. 1237-1240, 2011
Online since
February 2011
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$32.00
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