The mechanical properties and morphology of a graphite oxide nanoplatelet/polyurethane composite

Dongyu Cai; Kamal Yusoh; Mo Song

doi:10.1088/0957-4484/20/8/085712

The mechanical properties and morphology of a graphite oxide nanoplatelet/polyurethane composite

Dongyu Cai, Kamal Yusoh, Mo Song

Loughborough University

Research output: Contribution to journal › Article › peer-review

223 Scopus citations

Abstract

Significant reinforcement of polyurethane (PU) using graphite oxide nanoplatelets (GONPs) is reported. Morphologic study shows that, due to the formation of chemical bonding, there is a strong interaction between the GONPs and the hard segment of the PU, which allows effective load transfer. The GONPs can prevent the formation of crystalline hard segments due to their two-dimensional structure. With the incorporation of 4.4 wt% of GONPs, the Young's modulus and hardness of the PU are significantly increased by ∼900% and ∼327%, respectively. The resultant high resistance to scratching indicates promise for application of these composite materials in surface coating.

Original language	English
Article number	085712
Journal	Nanotechnology
Volume	20
Issue number	8
DOIs	https://doi.org/10.1088/0957-4484/20/8/085712
State	Published - 2009
Externally published	Yes

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AB - Significant reinforcement of polyurethane (PU) using graphite oxide nanoplatelets (GONPs) is reported. Morphologic study shows that, due to the formation of chemical bonding, there is a strong interaction between the GONPs and the hard segment of the PU, which allows effective load transfer. The GONPs can prevent the formation of crystalline hard segments due to their two-dimensional structure. With the incorporation of 4.4 wt% of GONPs, the Young's modulus and hardness of the PU are significantly increased by ∼900% and ∼327%, respectively. The resultant high resistance to scratching indicates promise for application of these composite materials in surface coating.

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The mechanical properties and morphology of a graphite oxide nanoplatelet/polyurethane composite

Abstract

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