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X-ray Photoelectron Spectroscopic Analysis of Modified MWCNT and Dynamic Mechanical Properties of E-beam Cured Epoxy Resins with the MWCNT

  • Carbon Letters
  • Abbr : Carbon Lett.
  • 2009, 10(4), pp.314-319
  • Publisher : Korean Carbon Society
  • Research Area : Natural Science > Natural Science General > Other Natural Sciences General

Lee, Young-Seak 1 Im Ji Sun 2 Seok-Min Yun 1 Young Chang Nho 3 Phil Hyun Kang 3 Hangkyo Jin 4

1Chungnam National University
2충남대학교
3Korea Atomic Energy Research Institute
4Korea Research Institute of Chemical Technology,

Candidate

ABSTRACT

The surface treatment effects of reinforcement filler were investigated based on the dynamic mechanical properties of mutiwalledcarbon nanotubes (MWCNTs)/epoxy composites. The as-received MWCNTs(R-MWCNTs) were chemically modifiedby direct oxyfluorination method to improve the dispersibility and adhesiveness with epoxy resins in composite system. Inorder to investigate the induced functional groups on MWCNTs during oxyfluorination, X-ray photoelectron spectroscopywas used. The thermo-mechanical property of MWCNTs/epoxy composite was also measured based on effects ofoxyfluorination treatment of MWCNTs. The storage modulus of MWCNTs/epoxy composite was enhanced about 1.27 timesthrough oxyfluorination of MWCNTs fillers at 25oC. The storage modulus of oxyfluorinated MWCNTs (OF73-MWCNTs)reinforced epoxy composite was much higher than that of R-MWCNTs/epoxy composite. It revealed that oxygen content ledto the efficient carbon-fluorine covalent bonding during oxyfluorination. These functional groups on surface modifiedMWCNTs induced by oxyfluorination strikingly made an important role for the reinforced epoxy composite.

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