Nanocomposites of carbon nanotube fibers prepared by polymer crystallization

Shanju Zhang, Wei Lin, Ching-Ping Wong, David G. Bucknall, Satish Kumar

Research output: Contribution to journalArticle

71 Citations (Scopus)

Abstract

Nanocomposites of carbon nanotube fibers have been prepared using controlled polymer crystallization confined in nanotube aerogel fibers. The polyethylene nanocomposites have been investigated by means of polarized optical microscopy (POM), scanning electron microscopy (SEM) and wide-angle X-ray diffraction (WAXD). The individual nanotubes are periodically decorated with polyethylene nanocrystals, forming aligned hybrid shish-kebab nanostructures. After melting and recrystallization, transcrystalline lamellae connecting the adjacent aligned nanotubes develop. Microstructural analysis shows that the nanotubes can nucleate the growth of both orthorhombic and monoclinic crystals of polyethylene in the quiescent state. The tensile strength, modulus, and axial electrical conductivity of these polyethylene/CNT composite fibers are as high as 600 MPa, 60 GPa, and 5000 S/m, respectively.

Original languageEnglish
Pages (from-to)1642-1647
Number of pages6
JournalACS Applied Materials and Interfaces
Volume2
Issue number6
DOIs
Publication statusPublished - 23 Jun 2010

Keywords

  • nanocomposites
  • carbon nanotubes
  • fibers
  • polymer crystallization
  • interface
  • POLYETHYLENE FIBERS
  • BEHAVIOR
  • POLYPROPYLENE
  • DEFORMATION
  • TEMPERATURE
  • TECHNOLOGY
  • COMPOSITES
  • MORPHOLOGY
  • REGION
  • YARNS

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