Skip to main content

Research Repository

Advanced Search

Influence of reduced graphene oxide on epoxy/carbon fibre-reinforced hybrid composite: flexural and shear properties under varying temperature conditions.

Jenkins, Paddy; Siddique, Shohel; Khan, Samrin; Usman, Aliyu; Starost, Kristof; MacPherson, Allan; Bari, Pravin; Mishra, Satyendra; Njuguna, James

Authors

Paddy Jenkins

Shohel Siddique

Samrin Khan

Aliyu Usman

Kristof Starost

Allan MacPherson

Pravin Bari

Satyendra Mishra



Abstract

This study investigated the effectiveness of reduced graphene oxide as nanofiller in enhancing epoxy/carbon fibre-reinforced composite at varying temperature conditions. The graphene oxide was synthesised using modified Hummer’s method and then chemically reduced to yield reduced graphene oxide (rGO). The rGO was dispersed in epoxy matrix system through combination of mechanical and sonication methods. The flexural and shear test samples were manufactured using resin infusion technique. These samples were then tested to determine their shear and flexural properties at varying temperatures (-10°C, 23°C, 40°C) and the results correlated to neat samples. It was found that the composites’ flexural strength and flexural modulus increased with rGO wt.% content up to 62% and 44% respectively. The shear testing results showed improvement on the shear strength and modulus at maximum of 6% and 40% respectively. The rGO improvements advantage was lost for flexural strength, shear strength and modulus at elevated temperatures while flexural modulus withheld at 40% improvements over virgin epoxy/carbon fibre-reinforced composite. An interesting observation is that all samples with rGO exhibite reduced damage characteristics superior to the neat samples under flexural and shear loading conditions. This study indicates that the addition of rGO significantly alter the flexural and shear properties, failure modes, damage characteristics and they are overall sensitive to elevated temperature conditions.

Citation

JENKINS, P., SIDDIQUE, S., KHAN, S., USMAN, A., STAROST, K., MACPHERSON, A., BARI, P., MISHRA, S. and NJUGUNA, J. 2019. Influence of reduced graphene oxide on epoxy/carbon fibre-reinforced hybrid composite: flexural and shear properties under varying temperature conditions. Advanced engineering materials [online], 21(6), article ID 1800614. Available from: https://doi.org/10.1002/adem.201800614

Journal Article Type Article
Acceptance Date Jan 30, 2019
Online Publication Date Mar 19, 2019
Publication Date Jun 30, 2019
Deposit Date Feb 18, 2019
Publicly Available Date Mar 20, 2020
Journal Advanced engineering materials
Print ISSN 1438-1656
Electronic ISSN 1527-2648
Publisher Wiley Open Access
Peer Reviewed Peer Reviewed
Volume 21
Issue 6
Article Number 1800614
DOI https://doi.org/10.1002/adem.201800614
Keywords Graphene oxide; rGO; Nanofiller; Epoxy matrics; Shear testing
Public URL http://hdl.handle.net/10059/3306

Files

JENKINS 2019 Influence of reduced graphene (1.9 Mb)
PDF

Publisher Licence URL
https://creativecommons.org/licenses/by-nc/4.0/





You might also like



Downloadable Citations