Imperial College London
Alternate

Prof Ambrose Taylor

Faculty of Engineering, Department of Mechanical Engineering

Professor of Materials Engineering
 
 
 
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Contact

 

+44 (0)20 7594 7149a.c.taylor Website

 
 
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Assistant

 

Miss Valerie Crawford +44 (0)20 7594 7083

 
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Location

 

515City and Guilds BuildingSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Kopsidas:2021:10.1016/j.ijadhadh.2020.102723,
author = {Kopsidas, S and Olowojoba, G and Kinloch, A and Taylor, A},
doi = {10.1016/j.ijadhadh.2020.102723},
journal = {International Journal of Adhesion and Adhesives},
pages = {1--12},
title = {Examining the effect of graphene nanoplatelets on the corrosion resistance of epoxy coatings},
url = {http://dx.doi.org/10.1016/j.ijadhadh.2020.102723},
volume = {104},
year = {2021}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - Graphene due to its two-dimensional structure, large surface area and high impermeability is regarded as an excellent functional filler for the development of anti-corrosive coatings by creating a natural barrier to the diffusion of electrolytes. Epoxy polymers are widely used as protective coatings, and in the present study, commercially-available graphene nanoplatelets (GNPs) were dispersed into an epoxy resin using three-roll milling (3RM). The GNP-modified epoxy was coated onto mild steel substrates, and cured. The coated panels were immersed into a corrosive environment of 3.5wt% NaCl aqueous solution for 4–5 days. The adhesion of the coatings to the substrate was then measured using a cross-cut test. The addition of higher loadings of GNPs resulted in a deteriorating corrosion performance, with the 1.5wt% and 3wt% coatings exhibiting 53% and 91% damage, respectively, after the cross-cut tests. The unmodified epoxy and low GNP content coatings (≤0.5wt%) demonstrated 0% damage. This shows that the corrosion behaviour of GNP/epoxy coatings is not dominated by barrier effects but by electrochemical factors. The addition of GNPs is only effective at low loadings, as higher contents result in electrically-conductive coatings that facilitate the conduction of corrosion currents.
AU  - Kopsidas,S
AU  - Olowojoba,G
AU  - Kinloch,A
AU  - Taylor,A
DO  - 10.1016/j.ijadhadh.2020.102723
EP  - 12
PY  - 2021///
SN  - 0143-7496
SP  - 1
TI  - Examining the effect of graphene nanoplatelets on the corrosion resistance of epoxy coatings
T2  - International Journal of Adhesion and Adhesives
UR  - http://dx.doi.org/10.1016/j.ijadhadh.2020.102723
UR  - https://www.sciencedirect.com/science/article/pii/S014374962030186X?via%3Dihub
UR  - http://hdl.handle.net/10044/1/82526
VL  - 104
ER  -
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