Customizable fabrication for auxetic graphene assembled macrofilms with high conductivity and flexibility

Simple item page
dc.contributor.authorLi, Peng
dc.contributor.authorWang, Zhe
dc.contributor.authorSong, Rongguo
dc.contributor.authorQian, Wei
dc.contributor.authorWen, Pin
dc.contributor.authorYang, Zhugen
dc.contributor.authorHe, Daping
dc.date.accessioned2020-02-28T16:40:43Z
dc.date.available2020-02-28T16:40:43Z
dc.date.issued2020-02-25
dc.description.abstractAuxetic materials with negative Poisson's ratios unusually exhibit intuitive mechanical behaviors, such as cross-section expansion instead of contraction during tension. Such behaviors are interesting because they may enhance unusual mechanical properties. However, controllable preparation of materials with negative Poisson's ratio is still a major challenge. In this study, we report the synthesis of a flexible auxetic graphene assembled macrofilm (GAMF) from graphene oxide nanosheets by a thermal annealing and press assistant method. The obtained materials exhibit good flexibility and significantly wide tunable negative Poisson's ratios ranging from −0.11 to −0.53. We also develop a reconstruction model for characterization the uniaxial tension of GAMF based on X-ray tomographic images. The tensile simulation result predicts the function relationship between Poisson's ratio and critical thickness of pore channels, which is in good agreement with the experimental data. As a result, an effective tunable way is proposed for customizable fabrication of GAMF with tunable negative Poisson's ratios, and the GAMF materials with good flexibility, high electrical conductivity and superior auxetic behavior looks promising for future development of wearable electronics.en_UK
dc.identifier.citationLi P, Wang Z, Song R, et al., (2020) Customizable fabrication for auxetic graphene assembled macrofilms with high conductivity and flexibility. Carbon, Volume 162, June 2020, pp. 545-551en_UK
dc.identifier.issn0008-6223
dc.identifier.urihttps://doi.org/10.1016/j.carbon.2020.02.067
dc.identifier.urihttp://dspace.lib.cranfield.ac.uk/handle/1826/15200
dc.language.isoenen_UK
dc.publisherElsevieren_UK
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 International*
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/*
dc.subjectAuxetic materialsen_UK
dc.subjectNegetive Poisson's ratioen_UK
dc.subjectPorous graphene filmen_UK
dc.subjectPrediction of tunable Poisson's ratioen_UK
dc.titleCustomizable fabrication for auxetic graphene assembled macrofilms with high conductivity and flexibilityen_UK
dc.typeArticleen_UK

Files

Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
Customizable_fabrication_for_auxetic_graphene-2020.pdf
Size:
2.22 MB
Format:
Adobe Portable Document Format
Description:
Download
License bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
license.txt
Size:
1.63 KB
Format:
Item-specific license agreed upon to submission
Description:
Download

Collections

Staff publications (SWEE)