Influence of shape and size on the alignment of multi-wall carbon nanotubes under magnetic fields

B. K. Jang, Y. Sakka

Research output: Contribution to journalArticlepeer-review

20 Citations (Scopus)

Abstract

The influence of the shape and size of carbon nanotubes (CNTs) on the alignment of multi-wall CNTs was investigated. A CNT suspension with polyethylenimine (PEI) added as a dispersant showed stable dispersion. Stable CNT dispersion had a relatively high zeta potential value compared with poor dispersion. In addition, a strong magnetic field of 12 T was applied to the CNT suspension to investigate the alignment behavior of the CNTs. Good alignment of the CNTs according to the direction of the magnetic field was obtained. The degree of alignment depended on the shape and size of the CNTs, with the thick, straight CNTs showing better alignment than the thin, curved CNTs.

Original languageEnglish
Pages (from-to)2545-2547
Number of pages3
JournalMaterials Letters
Volume63
Issue number29
DOIs
Publication statusPublished - Dec 15 2009
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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