Influence of functionalized multi-layer graphene on adhesion improvement and corrosion resistance performance of zinc-rich epoxy primer |
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| Authors: | Somayeh Mohammadi Hossein Roohi |
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| Affiliation: | 1. Namjoo St.?Department of Chemistry, Faculty of Science, University of Guilan, Rasht, Iransomaye.mohammadi32@guilan.ac.ir;3. Namjoo St.?Department of Chemistry, Faculty of Science, University of Guilan, Rasht, Iran |
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| Abstract: | The influence of functionalised multi-layer graphene (FMLG) on anti-corrosion behaviour of zinc-rich primer (ZRP) was investigated. Electrochemical impedance spectroscopy, salt spray, cathodic delamination, pull-off adhesion tests and scanning electron microscopy analysis were evaluated. Samples were prepared using 0.25, 0.5, 0.75 and 1?wt-% of FMLG substituted by the same amount of zinc particles in epoxy containing 75?wt-% of zinc dust. Results revealed that sacrificial and barrier performances of ZRP were improved in the presence of FMLG. In addition, the adhesion and cathodic disbondment resistance showed significant improvement. The best results were obtained for ZRP containing 0.75?wt-% of FMLG. |
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| Keywords: | Functionalised multi-layer graphene zinc-rich primer electrical conductivity adhesion cathodic disbondment |
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