The mechanics of reinforcement in polymer-based nanocomposites

Robert J. Young; Ian A. Kinloch; Dimitrios G. Papageorgiou

The mechanics of reinforcement in polymer-based nanocomposites

Robert J. Young, Ian A. Kinloch, Dimitrios G. Papageorgiou

The University of Manchester

Research output: Contribution to conference › Paper › peer-review

Abstract

A detailed analysis has been undertaken of the mechanisms of reinforcement of polypropylene (PP) by the addition of graphene nanoplatelets (GNP). The PP/GNP nanocomposites were processed by melt mixing followed by injection moulding and microstructure was fully characterized. The mechanical properties of the nanocomposites were evaluated using both tensile testing and dynamic mechanical thermal analysis. The addition of GNPs led to a significant increase in the Young's modulus of the PP, coupled with a decrease in the yield stress and a reduction in the elongation to failure. Stress transfer from the PP matrix to the GNP reinforcement was followed from stress-induced shifts of the 2D Raman band and the effective Young's modulus of the GNPs in the nanocomposites was found to be of the order of 100 GPa, shown to be consistent with the expected value.

Original language	English
Publication status	Published - 1 Jan 2017
Event	21st International Conference on Composite Materials, ICCM 2017 - Xi'an, China Duration: 20 Aug 2017 → 25 Aug 2017

Conference

Conference	21st International Conference on Composite Materials, ICCM 2017
Country/Territory	China
City	Xi'an
Period	20/08/17 → 25/08/17

Keywords

Graphene
Mechanics
Nanocomposites
Raman spectroscopy

Cite this

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abstract = "A detailed analysis has been undertaken of the mechanisms of reinforcement of polypropylene (PP) by the addition of graphene nanoplatelets (GNP). The PP/GNP nanocomposites were processed by melt mixing followed by injection moulding and microstructure was fully characterized. The mechanical properties of the nanocomposites were evaluated using both tensile testing and dynamic mechanical thermal analysis. The addition of GNPs led to a significant increase in the Young's modulus of the PP, coupled with a decrease in the yield stress and a reduction in the elongation to failure. Stress transfer from the PP matrix to the GNP reinforcement was followed from stress-induced shifts of the 2D Raman band and the effective Young's modulus of the GNPs in the nanocomposites was found to be of the order of 100 GPa, shown to be consistent with the expected value.",

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AU - Young, Robert J.

AU - Kinloch, Ian A.

AU - Papageorgiou, Dimitrios G.

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N2 - A detailed analysis has been undertaken of the mechanisms of reinforcement of polypropylene (PP) by the addition of graphene nanoplatelets (GNP). The PP/GNP nanocomposites were processed by melt mixing followed by injection moulding and microstructure was fully characterized. The mechanical properties of the nanocomposites were evaluated using both tensile testing and dynamic mechanical thermal analysis. The addition of GNPs led to a significant increase in the Young's modulus of the PP, coupled with a decrease in the yield stress and a reduction in the elongation to failure. Stress transfer from the PP matrix to the GNP reinforcement was followed from stress-induced shifts of the 2D Raman band and the effective Young's modulus of the GNPs in the nanocomposites was found to be of the order of 100 GPa, shown to be consistent with the expected value.

AB - A detailed analysis has been undertaken of the mechanisms of reinforcement of polypropylene (PP) by the addition of graphene nanoplatelets (GNP). The PP/GNP nanocomposites were processed by melt mixing followed by injection moulding and microstructure was fully characterized. The mechanical properties of the nanocomposites were evaluated using both tensile testing and dynamic mechanical thermal analysis. The addition of GNPs led to a significant increase in the Young's modulus of the PP, coupled with a decrease in the yield stress and a reduction in the elongation to failure. Stress transfer from the PP matrix to the GNP reinforcement was followed from stress-induced shifts of the 2D Raman band and the effective Young's modulus of the GNPs in the nanocomposites was found to be of the order of 100 GPa, shown to be consistent with the expected value.

KW - Graphene

KW - Mechanics

KW - Nanocomposites

KW - Raman spectroscopy

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M3 - Paper

AN - SCOPUS:85053153042

T2 - 21st International Conference on Composite Materials, ICCM 2017

Y2 - 20 August 2017 through 25 August 2017

ER -

The mechanics of reinforcement in polymer-based nanocomposites

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Conference

Keywords

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