Characterization and performance of dodecyl amine functionalized graphene oxide and dodecyl amine functionalized graphene/high-density polyethylene nanocomposites: A comparative study
Article first published online: 22 AUG 2013
Copyright © 2013 Wiley Periodicals, Inc.
Journal of Applied Polymer Science
Volume 131, Issue 2, January 15, 2014
How to Cite
2014), Characterization and performance of dodecyl amine functionalized graphene oxide and dodecyl amine functionalized graphene/high-density polyethylene nanocomposites: A comparative study. J. Appl. Polym. Sci., 131, doi: 10.1002/app.39803, , , , (
- Issue published online: 23 OCT 2013
- Article first published online: 22 AUG 2013
- Manuscript Accepted: 1 AUG 2013
- Manuscript Received: 13 MAY 2013
- National Foundation of China. Grant Number: 51273161
- State Key Laboratory of Polymer Materials Engineering (Sichuan University). Grant Number: KF201202
- scientific effort by department of education of Shaanxi province. Grant Number: 11JK0592
- properties and characterization
Dodecyl amine (DA) functionalized graphene oxide(DA-GO) and dodecyl amine functionalized reduced graphene oxide (DA-RGO) were produced by using amidation reaction and chemical reduction, then two kinds of well dispersed DA-GO/high-density polyethylene (HDPE) and DA-RGO/HDPE nanocomposites were prepared by solution mixing method and hot-pressing process. Thermogravimetric, X-ray photoelectron spectroscopy, Fourier transforms infrared spectroscopy, X-ray diffractions, and Raman spectroscopy analyses showed that DA was successfully grafted onto the graphene oxide surface by uncleophilic substitution and the amidation reaction, which increased the intragallery spacing of graphite oxide, resulting in the uniform dispersion of DA-GO and DA-RGO in the nonpolar xylene solvent. Morphological analysis of nanocomposites showed that both DA-GO and DA-RGO were homogeneously dispersed in HDPE matrix and formed strong interfacial interaction. Although the crystallinity, dynamic mechanical, gas barrier, and thermal stability properties of HDPE were significantly improved by addition of small amount of DA-GO or DA-RGO, the performance comparison of DA-GO/HDPE and DA-RGO/HDPE nanocomposites indicated that the reduction of DA-GO was not necessary because the interfacial adhesion and aspect ratio of graphene sheets had hardly changed after reduction, which resulting in almost the same properties between DA-GO/HDPE and DA-RGO/HDPE nanocomposites. © 2013 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2014, 131, 39803.