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https://hdl.handle.net/2440/126899
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Type: | Journal article |
Title: | Electrically and thermally conductive elastomer by using MXene nanosheets with interface modification |
Author: | Aakyiir, M. Yu, H. Araby, S. Ruoyu, W. Michelmore, A. Meng, Q. Losic, D. Choudhury, N.R. Ma, J. |
Citation: | Chemical Engineering Journal, 2020; 397:125439-1-125439-10 |
Publisher: | © 2020 Elsevier B.V. All rights reserved. |
Issue Date: | 2020 |
ISSN: | 1385-8947 1873-3212 |
Statement of Responsibility: | Mathias Aakyiir, Huimin Yu, Sherif Araby, Wang Ruoyu, Andrew Michelmore ... Dusan Losic ... et al. |
Abstract: | It is a challenge to compound hydrophilic MXene nanosheets with hydrophobic elastomers for various applications such as stretchable devices. In this work, Ti3C2Tx MXene nanosheets of 3.5 ± 1.0 nm in thickness were chemically modified by a facile method to enhance compatibility with a common elastomer, nitrile butadiene rubber (NBR). X-ray photoelectron spectroscopy showed the presence of nitrogen in the MXene through the modification by allylamine, whilst Raman spectroscopy revealed an increase in =O groups, exposing more reactive sites on the nanosheet surface. Fourier transform infrared spectroscopy indicated the disappearance of –C=C bonds in the nanocomposites as well as the breakage of –C≡N bonds, confirming that allylamine bridged MXene nanosheets with the matrix molecules. X-ray diffraction study showed the complete exfoliation of nanosheets in the elastomer matrix at 2.0 vol%, as confirmed by TEM micrographs. At 14.0 vol% MXene, the Young’s modulus, tensile strength and thermal conductivity of NBR were improved by 700, 240 and 440%, respectively. A percolation threshold of electrical conductivity was obtained at 3.9 vol% of MXene while thermal conductivity at 19.6 vol% – 1.01 W·m−1K−1 – outperformed previous elastomer nanocomposites containing boron nitride, zinc oxide, graphene nanoplatelets and alumina. |
Keywords: | MXene; Elastomers; Nanocomposites |
Rights: | © 2020 Elsevier B.V. All rights reserved. |
DOI: | 10.1016/j.cej.2020.125439 |
Grant ID: | http://purl.org/au-research/grants/arc/DP200101737 |
Published version: | http://dx.doi.org/10.1016/j.cej.2020.125439 |
Appears in Collections: | ARC Research Hub for Graphene Enabled Industry Transformation publications Aurora harvest 4 Chemical Engineering publications |
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