Preparation and properties of aligned MWCNT-reinforced thermoplastic polyimide composites

T. H. Nam, K. Goto, Y. Shimamura, Y. Inoue, S. Kobayashi, S. Ogihara

Research output: Contribution to conferencePaperpeer-review

Abstract

Horizontally aligned 100-ply multi-walled carbon nanotube (MWCNT) sheets were produced from vertically aligned MWCNT arrays using drawing and press-winding techniques. Composites based on thermoplastic polyimide (TPI) resin and the aligned MWCNT sheets have been fabricated using hot-melt processing method. Effects of processing temperature and hot stretching on the mechanical properties of the aligned MWCNT/TPI composites were examined. The heating temperature of 410°C can be regarded as a reasonable temperature for the aligned MWCNT/TPI composite fabrication in this study. Hot-stretched MWCNT/TPI composite showed greater tensile strength and elastic modulus than those of the non-stretched one. The enhancement in the tensile strength and elastic modulus of the aligned MWCNT/TPI composites caused by hot stretching is attributable to the increase of the MWCNT alignment and enhancing the MWCNT volume fraction. The experimental results suggest that the aligned MWCNT/TPI composites with high CNT volume fraction can be used as lightweight and high heat resistance materials for aerospace applications.

Original languageEnglish
Publication statusPublished - 2017
Event21st International Conference on Composite Materials, ICCM 2017 - Xi'an, China
Duration: 20 Aug 201725 Aug 2017

Conference

Conference21st International Conference on Composite Materials, ICCM 2017
Country/TerritoryChina
CityXi'an
Period20/08/1725/08/17

Keywords

  • Carbon nanotubes
  • Mechanical properties
  • Nano composites
  • Thermoplastic polyimide

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