Jump to main content
Jump to site search

Issue 4, 2013
Previous Article Next Article

Simultaneous reduction, functionalization and stitching of graphene oxide with ethylenediamine for composites application

Author affiliations

Abstract

A simple, efficient and cost-effective approach for the simultaneous reduction, surface modification and stitching of graphene oxide (GO) using ethylenediamine is described. The effect of stitched graphene on the mechanical properties of linear low density polyethylene (LLDPE)-based composites was also investigated. Ethylamine was used to produce unstitched graphene, of which structures and properties were compared to those of stitched graphene. The surface modification of GO with ethylamine or ethylenediamine can easily take place under mild conditions. The reduced GO (rGO) shows good crystalline behavior and high electrical conductivity (∼1075 S m−1). The removal of epoxide, carboxyl and hydroxyl groups from GO by ethylamine or ethylenediamine was confirmed by Fourier transform infrared, Raman and photoelectron spectroscopy. The microstructures were analyzed by atomic force microscopy and transmission electron microscopy revealing stitching and crystalline behavior of the rGO. Compared to other reported methods, the reduction of GO with ethylamine and ethylenediamine is a preferable route for large-scale production of functionalized graphene. It was found that the storage modulus of the ethylenediamine functionalized GO (3 wt%)–LLDPE composites is significantly higher than that of pure LLDPE or ethylamine functionalized GO reinforced composites in the studied temperature range (−70 to 90 °C).

Graphical abstract: Simultaneous reduction, functionalization and stitching of graphene oxide with ethylenediamine for composites application

Back to tab navigation

Article information


Submitted
15 Sep 2012
Accepted
13 Nov 2012
First published
13 Nov 2012

J. Mater. Chem. A, 2013,1, 1349-1358
Article type
Paper

Simultaneous reduction, functionalization and stitching of graphene oxide with ethylenediamine for composites application

N. H. Kim, T. Kuila and J. H. Lee, J. Mater. Chem. A, 2013, 1, 1349
DOI: 10.1039/C2TA00853J

Social activity

Search articles by author

Spotlight

Advertisements