Issue 8, 2014

Enhanced mechanical properties of a multiwall carbon nanotube attached pre-stitched graphene oxide filled linear low density polyethylene composite

Abstract

A synergetic effect of multiwall carbon nanotube (MWCNT) attached pre-stitched graphene oxide (GO) on the mechanical properties of its linear low density polyethylene (LLDPE) composite was demonstrated. The reduction, functionalization and stitching of GO occurred simultaneously with the amine (–NH2) functionalities of ethylenediamine through nucleophilic addition and condensation reaction. The structural features of MWCNT attached pre-stitched GO with ethylenediamine (EtGO) (EtGO–MWCNT) hybrids were confirmed by X-ray diffraction, Fourier transform infrared and Raman spectroscopy. The EtGO–MWCNT hybrid filled LLDPE composite was prepared by solution mixing. The tensile strength of the EtGO–MWCNT/LLDPE composite with 1 wt% loading was enhanced by 148.7% compared to that of the neat LLDPE, which is much higher than those of O-MWCNTs, GO and EtGO filled composites. The enhanced properties of the EtGO–MWCNT/LLDPE composites were attributed to the homogeneous dispersion and the enhanced interfacial interaction with the matrix due to the multi-dimensional structure of EtGO–MWCNT. The EtGO–MWCNT/LLDPE composite also showed better dimensional stability than those of O-MWCNTs, GO, and EtGO filled composites.

Graphical abstract: Enhanced mechanical properties of a multiwall carbon nanotube attached pre-stitched graphene oxide filled linear low density polyethylene composite

Supplementary files

Article information

Article type
Paper
Submitted
29 Oct 2013
Accepted
10 Dec 2013
First published
10 Dec 2013

J. Mater. Chem. A, 2014,2, 2681-2689

Author version available

Enhanced mechanical properties of a multiwall carbon nanotube attached pre-stitched graphene oxide filled linear low density polyethylene composite

N. H. Kim, T. Kuila and J. H. Lee, J. Mater. Chem. A, 2014, 2, 2681 DOI: 10.1039/C3TA14393G

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