Surface modification of carbon nanotubes via electron beam

Mary E. Sullivan, Don Klosterman, Giuseppe R. Palmese

Research output: Contribution to journalConference articlepeer-review

2 Scopus citations

Abstract

The development of nanotube-based polymer composites with improved mechanical properties and electrical conductivity requires the covalent dispersion of carbon nanotubes to utilize their stress transfer capabilities. Covalent dispersion of nanotubes therefore requires the functionalization of their surface to interact with solvents or monomers. In this work, we have developed a novel method of nanotube surface modification in which dry MWNT are irradiated with a high-energy electron-beam (EB) in ambient air environment. Raman spectroscopy was performed to characterize the influence of EB irradiation on nanotubes, namely, variance of the disorder, or band ( ∼1360 cm -1) with respect to the graphitic, or G, peak ( ∼1580 cm -1). Spectra show increased deformation to the graphitic structure, as well as increased strain on the carboncarbon bonds, weakening the nanotube. Transmission Electron Microscopy (TEM) confirms that nanotubes remain intact despite high EB dose. In addition, minimal surface deformation and length reduction occurred on irradiated MWNT.

Original languageEnglish (US)
JournalInternational SAMPE Symposium and Exhibition (Proceedings)
Volume51
StatePublished - 2006
Externally publishedYes
EventSAMPE '06: Creating New Opportunities For The World Economy - Long Beach, CA, United States
Duration: Apr 30 2006May 4 2006

All Science Journal Classification (ASJC) codes

  • General Materials Science
  • Mechanics of Materials
  • Mechanical Engineering

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