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Nano-indentation studies on polymer matrix composites reinforced by few-layer graphene

Das, Barun and Prasad, K Eswar and Ramamurty, U and Rao, CNR (2009) Nano-indentation studies on polymer matrix composites reinforced by few-layer graphene. In: Nanotechnology, 20 (12). pp. 125705-125710.

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Official URL: http://www.iop.org/EJ/abstract/0957-4484/20/12/125...

Abstract

The mechanical properties of polyvinyl alcohol (PVA) and poly(methyl methacrylate) (PMMA)-matrix composites reinforced by functionalized few-layer graphene (FG) have been evaluated using the nano-indentation technique. A significant increase in both the elastic modulus and hardness is observed with the addition of 0.6 wt% of graphene. The crystallinity of PVA also increases with the addition of FG. This and the good mechanical interaction between the polymer and the FG, which provides better load transfer between the matrix and the fiber, are suggested to be responsible for the observed improvement in mechanical properties of the polymers.

Item Type: Journal Article
Additional Information: Copyright of this article belongs to Institute of Physics.
Department/Centre: Division of Chemical Sciences > Solid State & Structural Chemistry Unit
Division of Mechanical Sciences > Materials Engineering (formerly Metallurgy)
Depositing User: Rajalaxmi Ashok Govanakoppa
Date Deposited: 13 Nov 2009 09:57
Last Modified: 19 Sep 2010 05:29
URI: http://eprints.iisc.ac.in/id/eprint/19636

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