The capability of graphene on improving the electrical conductivity and anti-corrosion properties of Polyurethane coatings
journal contributionposted on 2017-03-10, 16:57 authored by Yao Tong, Siva Bohm, Mo Song
Graphite and graphene particles were used to reinforce the electrical conductivity and anti-corrosion properties of polyurethane (PU) coatings. The effect of graphite and graphene were compared. Hybrid filler using carbon nanotube was adopted as well and the performance in electrical conductivity was much superior to single filler system. At the same filler loading, the electrical conductivity of hybrid filler system was significantly higher than single filler system (0.77 S/m at 5 wt% while single filler system was not conductive). The conductive mechanism was revealed. In terms of anti-corrosion properties, the coatings with low filler loading had better anti-corrosion properties. The resistance values obtained from EIS (Electrochemical Impedance Spectroscopy) and four point probe method were compared and discussed.
We thank TATA Steel and the PhD scholarship of Loughborough University for providing the funding for this work.
- Aeronautical, Automotive, Chemical and Materials Engineering
Published inApplied Surface Science
CitationTONG, Y., BOHM, S. and SONG, M., 2017. The capability of graphene on improving the electrical conductivity and anti-corrosion properties of Polyurethane coatings. Applied Surface Science, 424, pt.1. pp.72-81.
- AM (Accepted Manuscript)
Publisher statementThis work is made available according to the conditions of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) licence. Full details of this licence are available at: https://creativecommons.org/licenses/by-nc-nd/4.0/
NotesThis paper was accepted for publication in the journal Applied Surface Science and the definitive published version is available at http://dx.doi.org/10.1016/j.apsusc.2017.02.081