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Issue 77, 2015
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Mechanical and thermal properties of graphene oxide/ultrahigh molecular weight polyethylene nanocomposites

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Abstract

Graphene oxide (GO) was prepared according to a modified Hummers method, and a range of GO/ultrahigh molecular weight polyethylene (UHMWPE) composites were fabricated using liquid-phase ultrasonication mixing followed by hot-pressing. The thermal performances of the GO/UHMWPE composites were characterized by TGA and DSC. The dispersion of GO in GO/UHMWPE composites was investigated by FTIR and XRD. Moreover, the mechanical properties, including micro-hardness, tensile properties, and impact strength of GO/UHMWPE composites were also studied and the fractured surfaces were observed under SEM. The results show that the melting temperature of these composites was about 135 °C and the crystallinity was improved with the addition of GO. Moreover, the initial decomposition temperature was about 472 °C and the addition of GO improved the thermal performance of GO/UHMWPE. Furthermore, not only was the impact strength increased substantially with the addition of GO, but the micro-hardness was also improved gradually and the tensile properties were improved with the addition of GO. The thermal and mechanical performances of the GO/UHMWPE composites are influenced by the free-space effect and interaction-force effect.

Graphical abstract: Mechanical and thermal properties of graphene oxide/ultrahigh molecular weight polyethylene nanocomposites

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Article information


Submitted
19 Jun 2015
Accepted
07 Jul 2015
First published
07 Jul 2015

RSC Adv., 2015,5, 63063-63072
Article type
Paper

Mechanical and thermal properties of graphene oxide/ultrahigh molecular weight polyethylene nanocomposites

W. Pang, Z. Ni, G. Chen, G. Huang, H. Huang and Y. Zhao, RSC Adv., 2015, 5, 63063
DOI: 10.1039/C5RA11826C

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