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Effect of carbon nanofiber (CNF) silanization on the properties of CNF/epoxy nanocomposites
Author(s) -
Nie Yaru,
Hübert Thomas
Publication year - 2011
Publication title -
polymer international
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.592
H-Index - 105
eISSN - 1097-0126
pISSN - 0959-8103
DOI - 10.1002/pi.3124
Subject(s) - silanization , thermogravimetric analysis , materials science , epoxy , carbon nanofiber , nanocomposite , composite material , fourier transform infrared spectroscopy , surface modification , nanofiber , raman spectroscopy , chemical engineering , scanning electron microscope , x ray photoelectron spectroscopy , carbon nanotube , physics , optics , engineering
Carbon nanofibers (CNFs) were functionalized by a multistage process including oxidation, reduction and silanization. The chemical modifications were examined by Fourier transform infrared spectroscopy, X‐ray photoelectron spectrometry, Raman spectroscopy and thermogravimetric analysis. The silanized CNFs were then added into an epoxy resin (EPON 828) to study the effect of the surface modification of CNFs on the properties of nanocomposites. For comparison, nanocomposites containing original unmodified CNFs were also investigated. Scanning electron microscopy indicates better dispersion of modified fibers in the epoxy polymer matrix; the mechanical and thermal properties of composites are also improved; the electrical conductivity of the composites is reduced. Copyright © 2011 Society of Chemical Industry