Mechanical properties and microstructure of single-wall carbon nanotube/elastomeric epoxy composites with block copolymers

Qianqian Li, Michael Zaiser, Jane R. Blackford, Chris Jeffree, Yehong He, Vasileios Koutsos

Research output: Contribution to journalArticlepeer-review

Abstract

Single-wall carbon-nanotube (SWNT) reinforced elastomeric epoxy composites were fabricated by adding 0.03 wt% SWNTs and using 0.3 wt% block copolymer to obtain a good dispersion of carbon nanotubes in the epoxy matrix. Young's modulus, fracture stress and strain of the SWNT/epoxy composites with block copolymer were increased by 141%, 127% and 43%, respectively, compared to the pure epoxy resin. Scanning electron microscopy observation revealed that using the block copolymer as a dispersing agent significantly improved both SWNT dispersion in the epoxy matrix and interfacial bonding/load transfer. (C) 2014 Elsevier B.V. All rights reserved.

Original languageEnglish
Pages (from-to)116-119
Number of pages4
JournalMaterials letters
Volume125
Early online date21 Mar 2014
DOIs
Publication statusPublished - 15 Jun 2014

Keywords

  • Polymeric composites
  • Nanocomposites
  • Carbon nanotubes
  • Deformation and fracture
  • Microstructure
  • ELECTRICAL-PROPERTIES
  • POLYMER COMPOSITES
  • NANOTUBES
  • REINFORCEMENT
  • MATRIX

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