Tribological behavior of PTFE nanocomposite films reinforced with carbon nanoparticles

Jeong Yeop Lee, Dong Phill Lim, Dae Soon Lim

Research output: Contribution to journalArticlepeer-review

68 Citations (Scopus)


Carbon-based nanoparticles synthesized by heat treatment of nanodiamond in the temperature range of 1000-1900 °C were added to PTFE film to investigate the structural effect of the carbon particles on the tribological properties of PTFE composite film. Carbon-based nanoparticles were prepared by milling with micron sized beads in chemically treated water before their addition to PTFE film. The wear and frictional properties of PTFE nanocomposite film were measured by the ball on plate type wear test. The wear resistance of PTFE film was found to be enhanced by the addition of 2 wt% of carbon nanoparticles. The wear coefficient of PTFE film was decreased from 16.2 to 3.5 × 10-6 mm3/N m by the addition of carbon-based nanoparticles heat-treated at 1000 °C. Increasing the heating temperature of the nanodiamonds caused the extent of aggregation and particle size to increase. The wear resistance of PTFE nanocomposite film was enhanced by the addition of nanodiamonds heat-treated at 1000 °C, but decreased when the heat treatment temperature of carbon nanoparticles was further increased. Tribological behavior of PTFE nanocomposite films depending on the types of carbon nanoparticles were explained based on the structural, physical and chemical modification of carbon nanoparticles.

Original languageEnglish
Pages (from-to)810-816
Number of pages7
JournalComposites Part B: Engineering
Issue number7-8
Publication statusPublished - 2007 Oct


  • A. Particle-reinforcement
  • B. Surface properties
  • B. Wear
  • E. Heat treatment
  • PTFE film

ASJC Scopus subject areas

  • Ceramics and Composites
  • Mechanics of Materials
  • Mechanical Engineering
  • Industrial and Manufacturing Engineering


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