Improving Corrosion Resistance of Zinc-Reinforced Epoxy Coatings
Author Information
Author(s): Mao Yan, Liu Shufu, Liu Shizhong, Wu Guodong, Liu Qi, Du Xusheng
Primary Institution: School of Civil Engineering, Lanzhou Jiaotong University, Lanzhou, China
Hypothesis
The study investigates the synergistic effect of CNT and N-Doped Graphene Foam on the corrosion resistance of zinc-reinforced epoxy composite coatings.
Conclusion
The incorporation of hybrid fillers significantly enhances the corrosion resistance of zinc-reinforced epoxy coatings.
Supporting Evidence
- The optimal content of hybrid filler in the coating was determined to be only 0.1% with a ratio of 3DNG to CNT of 1:3.
- The corrosion current of the coating could be reduced by more than six orders of magnitude with the modification of hybrid fillers.
- The immersion test demonstrated the contribution of hybrid fillers to the sacrificial anode-based surface protection mechanism.
Takeaway
This study shows that mixing different types of carbon materials can make coatings that protect metal from rust much better.
Methodology
The study involved preparing carbon nanomaterial-modified zinc-rich epoxy coatings and testing their corrosion resistance using electrochemical methods.
Limitations
The study does not explore the long-term durability of the coatings in various environmental conditions.
Digital Object Identifier (DOI)
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