Production and characterization of polymer nanocomposite with aligned single wall carbon nanotubes

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Abstract

We reported a simple method to fabricate polymer nanocomposites with single-walled carbon nanotubes (SWNTs) having exceptional alignment and improved mechanical properties. The composite films were fabricated by casting a suspension of single walled carbon nanotubes in a solution of thermoplastic polyurethane and tetrahydrofuran. The orientation as well as dispersion of nanotubes was determined by scanning electron microscopy, transmission electron microscopy and polarized Raman spectroscopy. The macroscopic alignment probably results from solvent-polymer interaction induced orientation of soft segment chain during swelling and moisture curing. The tensile behavior of the aligned nanotube composite film was also studied. At a 0.5 wt.% nanotube loading, a 1.9-fold increase in Young's modulus was achieved.
Original languageEnglish
Pages (from-to)3547-3552
Number of pages6
JournalApplied Surface Science
Volume252
Issue number10
DOIs
Publication statusPublished - 15 Mar 2006

Keywords

  • Carbon nanotube
  • Nanocomposite
  • Polymer

ASJC Scopus subject areas

  • Surfaces, Coatings and Films

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