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Authors Saeb, M. R. ; Najafi, F. ; Bakhshandeh, E. ; Khonakdar, H. A. ; Mostafaiyan, M. ; Simon, F. ; Scheffler, C. ; Mäder, E.
Title Highly curable epoxy/MWCNTs nanocomposites: An effective approach to functionalization of carbon nanotubes
Date 01.01.2015
Number 44122
Abstract This investigation suggests an effective route to functionalization of multi-walled carbon nanotubes (MWCNTs) by which epoxy nanocomposites with very high potential to cure are successfully prepared. The proposed modification ends in covalent attachment of primary (single bondNH2) and secondary (single bondNH) functional groups onto MWCNTs capable of facilitating cure mechanism. The modification process has been carried out via free radical polymerization of maleic anhydride derivative by which single bondNH and single bondNH2 reactive groups were introduced onto the surface of MWCNTs. Raman spectroscopy (RS) and X-ray photoelectron spectroscopy (XPS) were employed to appropriately study surface characteristics of modified MWCNTs. The degree of disorderness and elemental composition onto the MWCNTs were quantitatively determined utilizing RS and XPS by tracking peak areas and sensitivity factors reflecting changes in binding energy, height, and width of corresponding peaks of pristine and functionalized MWCNTs. The cure characteristics of epoxy nanocomposites containing unmodified and amino functionalized MWCNTs were ultimately examined by non-isothermal differential scanning calorimetry to visualize the potential of the developed epoxy nanocomposites to cure.
Publisher Chemical Engineering Journal
Wikidata
Citation Chemical Engineering Journal 259 (2015) 117-125
DOI https://doi.org/10.1016/j.cej.2014.07.116
Tags carbon nanotubes epoxy amine functionalization elemental surface analysis cure kinetics

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