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https://hdl.handle.net/2440/126771
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dc.contributor.author | Naeem, M. | - |
dc.contributor.author | Kuan, H.C. | - |
dc.contributor.author | Michelmore, A. | - |
dc.contributor.author | Meng, Q. | - |
dc.contributor.author | Qiu, A. | - |
dc.contributor.author | Aakyiir, M. | - |
dc.contributor.author | Losic, D. | - |
dc.contributor.author | Zhu, S. | - |
dc.contributor.author | Ma, J. | - |
dc.date.issued | 2020 | - |
dc.identifier.citation | Composites Part B: Engineering, 2020; 196:108096-1-108096-10 | - |
dc.identifier.issn | 1359-8368 | - |
dc.identifier.issn | 1879-1069 | - |
dc.identifier.uri | http://hdl.handle.net/2440/126771 | - |
dc.description.abstract | Organic solvents are often used to prepare epoxy/graphene nanocomposites. In this study a graphene precursor is developed, which in epoxy at 200 °C is able to directly exfoliate into three classes of graphene platelets: large, single-layer sheets, medium sized sheets with 5.2 ± 1.95 nm in thickness, and smaller 0.5–1.0 nm thick sheets of 200–500 nm in lateral dimension, with a Raman ID/IG ratio of 0.177. The yield of single-layer graphene is 41.45%. Due to oxygen-containing groups on the surface, these sheets are named functionalized graphene platelets. Platelet films of ~10 μm in thickness have an electrical conductivity of 978.65 ± 79.44 S/cm. A percolation threshold of electrical conductivity is observed at 0.80 vol% for epoxy/graphene nanocomposites. The composites show highly improved mechanical and dynamic thermo-mechanical properties. At 1.03 vol%, the nanocomposite has a fracture energy release rate of 850.78 ± 58.00 J m−2 corresponding to an increase of 170.61% over neat epoxy. | - |
dc.description.statementofresponsibility | Mohannad Naeem, Hsu-Chiang Kuan, Andrew Michelmore, Qingshi Meng, Aidong Qiu ... Dusan Losic ... et al. | - |
dc.language.iso | en | - |
dc.publisher | Elsevier | - |
dc.rights | © 2020 Elsevier Ltd. All rights reserved. | - |
dc.source.uri | http://dx.doi.org/10.1016/j.compositesb.2020.108096 | - |
dc.subject | Polymer-matrix composites (PMCs); fracture toughness; solventfree synthesis; multiscale graphene/epoxy nanocomposites | - |
dc.title | A new method for preparation of functionalized graphene and its epoxy nanocomposites | - |
dc.type | Journal article | - |
dc.identifier.doi | 10.1016/j.compositesb.2020.108096 | - |
dc.relation.grant | http://purl.org/au-research/grants/arc/LP180100005 | - |
dc.relation.grant | http://purl.org/au-research/grants/arc/IH150100003 | - |
pubs.publication-status | Published | - |
dc.identifier.orcid | Losic, D. [0000-0002-1930-072X] | - |
Appears in Collections: | ARC Research Hub for Graphene Enabled Industry Transformation publications Aurora harvest 4 Chemical Engineering publications |
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