標題: An in situ fabrication process for highly electrical conductive polyimide/MWCNT composite films using 2,6-diaminoanthraquinone
作者: Huang, Yi-Chia
Lin, June-Hua
Tseng, I-Hsiang
Lo, An-Ya
Lo, Teng-Yuan
Yu, Hsin-Pei
Tsai, Mei-Hui
Whang, Wha-Tzong
Hsu, Ken-Yuh
材料科學與工程學系
光電工程學系
Department of Materials Science and Engineering
Department of Photonics
關鍵字: Carbon nanotubes;Nano composites;Polymer-matrix composites (PMCs);Polyimide
公開日期: 18-Oct-2013
摘要: We present a valuable in situ fabrication process for synthesizing high electrical conductive polyimide/multiwalled carbon nanotube (PI/MWCNT) composite films. The success of this process was achieved the addition of 2,6-diaminoanthraquinone (DAAQ). The DAAQ is not only an excellent dispersion agent to stably disperse pristine MWCNTs in solvent but also a monomer to directly synthesize PI. The strong interaction between DAAQ with MWCNT was verified by FTIR, UV-Vis, Raman, and fluorescence spectra. The highest value of electrical conductivity of 55.6 S/cm are achieved by the PI composite containing 40 wt.% of MWCNT. Moreover, the electrical conductivity of this film further enhanced to 106 S/cm after the thermal compression process. The MWCNT content at the percolation threshold of conductivity is 0.50 wt.% (or 0.32 vol.%) and the critical exponent is equal to 2.52. The developed in situ fabrication process through DAAQ-derived molecules can also be applied to synthesize other polymers requiring diamine structure. (C) 2013 Published by Elsevier Ltd.
URI: http://dx.doi.org/10.1016/j.compscitech.2013.08.008
http://hdl.handle.net/11536/22973
ISSN: 0266-3538
DOI: 10.1016/j.compscitech.2013.08.008
期刊: COMPOSITES SCIENCE AND TECHNOLOGY
Volume: 87
Issue: 
起始頁: 174
結束頁: 181
Appears in Collections:Articles


Files in This Item:

  1. 000326134000025.pdf