Physical wrapping of reduced graphene oxide sheets by polyethylene wax and its modification on the mechanical properties of polyethylene

Cao, Zhenhu and Song, Pingan and Fang, Zhengping and Xu, Yuanyuan and Zhang, Yan and Guo, Zhenghong (2012) Physical wrapping of reduced graphene oxide sheets by polyethylene wax and its modification on the mechanical properties of polyethylene. Journal of Applied Polymer Science, 126 (5). pp. 1546-1555. ISSN 0021-8995

Abstract

A facile method to encapsulate the reduced graphene oxide (RGO) sheets physically with polyethylene (PE) wax was developed. The graphene oxide sheets were first wrapped with polyethylene wax, and reduced by hydrazine hydrate. The structure of the wrapped RGO was confirmed by means of Fourier transform infrared spectroscopy, X-ray diffraction (XRD), and Raman spectroscopy. The PE wax-wrapped RGO sheets were melt blended with PE to prepare PE/RGO nanocomposites. Transmission electron microscopy and XRD studies showed that this method could provide uniform dispersion of RGO sheets in the PE matrix. Scanning electron microscopy and Raman spectroscopy indicated that there was a strong interfacial interaction between the PE wax-wrapped RGO sheets and PE matrix. Addition of 1 wt % RGO sheets in PE matrix led to a 48% increment in the yield stress and 118% increment in the Young's modulus, respectively. However, the elongation at break decreased with increasing RGO sheets loading content.


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Item Type: Article (Commonwealth Reporting Category C)
Refereed: Yes
Item Status: Live Archive
Additional Information: Files associated with this item cannot be displayed due to copyright restrictions.
Faculty / Department / School: No Faculty
Date Deposited: 30 May 2017 00:18
Last Modified: 01 Jun 2017 04:43
Uncontrolled Keywords: graphene; mechanical properties; polyethylene; polymer nanocomposites; elongation at break; facile method; graphene oxides; hydrazine hydrate; interfacial interaction; polyethylene waxes; polymer nanocomposite; reduced graphene oxides; uniform dispersions; XRD studies; Young's modulus; crystal lattice; solid state physics; organic polymers
Fields of Research : 03 Chemical Sciences > 0303 Macromolecular and Materials Chemistry > 030301 Chemical Characterisation of Materials
Socio-Economic Objective: E Expanding Knowledge > 97 Expanding Knowledge > 970103 Expanding Knowledge in the Chemical Sciences
Identification Number or DOI: 10.1002/app.36898
URI: http://eprints.usq.edu.au/id/eprint/31633

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