Electrically and thermally conductive elastomer by using MXene nanosheets with interface modification

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dc.contributor.authorAakyiir, M.
dc.contributor.authorYu, H.
dc.contributor.authorAraby, S.
dc.contributor.authorRuoyu, W.
dc.contributor.authorMichelmore, A.
dc.contributor.authorMeng, Q.
dc.contributor.authorLosic, D.
dc.contributor.authorChoudhury, N.R.
dc.contributor.authorMa, J.
dc.date.issued2020
dc.description.abstractIt 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.
dc.description.statementofresponsibilityMathias Aakyiir, Huimin Yu, Sherif Araby, Wang Ruoyu, Andrew Michelmore ... Dusan Losic ... et al.
dc.identifier.citationChemical Engineering Journal, 2020; 397:125439-1-125439-10
dc.identifier.doi10.1016/j.cej.2020.125439
dc.identifier.issn1385-8947
dc.identifier.issn1873-3212
dc.identifier.orcidLosic, D. [0000-0002-1930-072X]
dc.identifier.urihttp://hdl.handle.net/2440/126899
dc.language.isoen
dc.publisher© 2020 Elsevier B.V. All rights reserved.
dc.relation.granthttp://purl.org/au-research/grants/arc/DP200101737
dc.rights© 2020 Elsevier B.V. All rights reserved.
dc.source.urihttps://doi.org/10.1016/j.cej.2020.125439
dc.subjectMXene; Elastomers; Nanocomposites
dc.titleElectrically and thermally conductive elastomer by using MXene nanosheets with interface modification
dc.typeJournal article
pubs.publication-statusPublished

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