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Effects of the surface treatment on the properties of polyaniline coated carbon nanotubes/epoxy composites

  • Ok Kyung Park
  • , Nam Hoon Kim
  • , Gye Hyung Yoo
  • , Kyong Yop Rhee
  • , Joong Hee Lee*
  • *Corresponding author for this work

Research output: Contribution to journalJournal articlepeer-review

Abstract

The effects of a surface treatment of carbon nanotubes (CNTs) on the electrical conductivity and the hydrophilicity of a polyaniline (PAni) coated CNTs (PAni-CNTs)/epoxy (EP) composites were examined. The surface of the CNTs was treated with various chemicals, such as acid mixtures (HNO3:H2SO4), potassium persulfate (KPS) and sodium dodecyl sulfate (SDS), to improve their dispersion and reactivity with PAni. The electrical conductivity and hydrophilicity of PAni-CNTs and their EP composites were strongly affected by the surface treatment of the CNTs. The surface-treating materials remained on the surface of the CNTs affected the reactivity of the CNTs surface to PAni, and thus resulted in different PAni amounts in the PAni-CNTs. The electrical conductivity of the PAni-CNTs/EP composites decreased, but the hydrophilicity increased, with increasing the amount of PAni coating on the CNTs surface.

Original languageEnglish
Pages (from-to)2-7
Number of pages6
JournalComposites Part B: Engineering
Volume41
Issue number1
DOIs
StatePublished - 2010.01

Keywords

  • A. Carbon nanotubes (CNTs)
  • B. Electrical properties
  • B. Hydrophilicity
  • E. Surface treatments

Quacquarelli Symonds(QS) Subject Topics

  • Materials Science
  • Engineering - Mechanical

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