Journal of Materials Science

, Volume 48, Issue 12, pp 4151–4162

Oxidation of nanodiamonds and modulation of their assembly in polymer-based nanohybrids by field-inducement

  • Hong-Baek Cho
  • Son Thanh Nguyen
  • Tadachika Nakayama
  • Minh Triet Tan Huynh
  • Hisayuki Suematsu
  • Tsuneo Suzuki
  • Weihua Jiang
  • Shaifulazuar Bin Rozali
  • Yoshinori Tokoi
  • Yeung-Ho Park
  • Koichi Niihara
Article

DOI: 10.1007/s10853-013-7228-6

Cite this article as:
Cho, H., Nguyen, S.T., Nakayama, T. et al. J Mater Sci (2013) 48: 4151. doi:10.1007/s10853-013-7228-6
  • 799 Views

Abstract

Linear assembly of densely packed oxidized nanodiamonds (OxNDs) was performed in polymer-based nanohybrid films. A homogeneous suspension of the pre-polymer polyepoxide and OxNDs was placed onto a polyamide spacer and subjected to an electric field in order to induce the relocation and assembly of the fillers before the mixture became cross-linked. The OxNDs suspended readily, forming linear assemblies of OxNDs (LAOxNDs) of varying thicknesses, aligned perpendicular to the film surfaces. Nanohybrid films with linear assemblies of LAOxNDs exhibited a moderate increase in thermal conductivity while maintaining the electrical insulation properties of the polyepoxide. Mechanisms for the field-induced fabrication and the structural variation of LAOxNDs in the pre-polymer matrix are elucidated in relation to the variations in physical properties. The present air oxidation process and field-induced application are simple but effective in enhancing the physical properties of polymer-based hybrids, and hence, has the potential for applying in the fabrication and modulation of nanocomposite materials.

Copyright information

© Springer Science+Business Media New York 2013

Authors and Affiliations

  • Hong-Baek Cho
    • 1
  • Son Thanh Nguyen
    • 1
  • Tadachika Nakayama
    • 1
  • Minh Triet Tan Huynh
    • 1
  • Hisayuki Suematsu
    • 1
  • Tsuneo Suzuki
    • 1
  • Weihua Jiang
    • 1
  • Shaifulazuar Bin Rozali
    • 1
  • Yoshinori Tokoi
    • 2
  • Yeung-Ho Park
    • 3
  • Koichi Niihara
    • 1
  1. 1.Extreme Energy-Density Research InstituteNagaoka University of TechnologyNagaokaJapan
  2. 2.Department of Electrical and Electrics System EngineeringNagaoka National College of TechnologyNagaokaJapan
  3. 3.Department of Chemical EngineeringHanyang UniversityAnsanKorea