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Home / Journal of Nanoscience and Nanotechnology, Volume 9, Number 12

Silane Treatment of Carbon Nanotubes and Its Effect on the Tribological Behavior of Carbon Nanotube/Epoxy Nanocomposites

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Authors: Lee, J. H.; Rhee, K. Y.

Source: Journal of Nanoscience and Nanotechnology, Volume 9, Number 12, December 2009, pp. 6948-6952(5)

Publisher: American Scientific Publishers

DOI: https://doi.org/10.1166/jnn.2009.1618

Functionalization of carbon nanotubes (CNTs) influences dispersion and interfacial strength in CNT-reinforced nanocomposites. In this study, multi-walled CNTs were functionalized via oxidation with a mixture of sulfuric acid (H2SO4) and nitric acid (HNO3). Then, the functionalized CNTs with oxidation were surface-modified using a coupling agent, 3-aminopropyltriethoxysilane. CNT/epoxy nanocomposites were fabricated using oxidized CNTs and silane-modified CNTs, respectively, to investigate the effect of silane treatment on the tribological behavior of CNT/epoxy nanocomposites. Wear tests were performed on oxidized and silanized CNT/epoxy nanocomposites, at three different sliding speeds. The results showed that the friction coefficient and wear rate of silanized CNT/epoxy nanocomposites were lower than those of oxidized CNT/epoxy nanocomposites, regardless of sliding speed. The improved tribological behavior of silanized CNT/epoxy nanocomposites occurred due to the improved dispersion of CNTs into the epoxy and improved adhesion with the epoxy.

Keywords: CARBON NANOTUBES; NANOCOMPOSITES; SILANE TREATMENT; TRIBOLOGICAL BEHAVIOR

Document Type: Research Article

Publication date: 01 December 2009

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  • Journal for Nanoscience and Nanotechnology (JNN) is an international and multidisciplinary peer-reviewed journal with a wide-ranging coverage, consolidating research activities in all areas of nanoscience and nanotechnology into a single and unique reference source. JNN is the first cross-disciplinary journal to publish original full research articles, rapid communications of important new scientific and technological findings, timely state-of-the-art reviews with author's photo and short biography, and current research news encompassing the fundamental and applied research in all disciplines of science, engineering and medicine.
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