Enhanced anti-corrosion protective coatings with graphene additive
| Reference number | |
| Coordinator | RISE KIMAB AB - RISE KIMAB |
| Funding from Vinnova | SEK 980 000 |
| Project duration | May 2019 - November 2020 |
| Status | Completed |
| Venture | Strategic innovation program SIO Grafen |
| Call | Collaborations for commercial applications with graphene – spring 2019 |
Important results from the project
An intended application of the developed coating systems is for large-size industrial and infrastructure installations. By improving corrosion protection property of the paint systems developed in this project, economic and environmental benefits are expected. The obtained results are aimed to improve an understanding on the effect of graphene additive on corrosion protection property of the paint systems
Expected long term effects
Addition of graphene to corrosion protection coating systems was expected to enhance barrier properties, thus limit diffusion of corrosive ions, water and oxygen through the coating. Such behaviour helps delaying failure of coating by corrosion. However, effect of graphene addition on corrosion resistance and resistance to UV radiation in this project was inconclusive. Further characterization of the coated panels is recommended for a better understanding on the effect of graphene addition.
Approach and implementation
The scope of this project is to perform a systematic evaluation of the effect of graphene addition to different layers of protective coating systems applied on different metallic substrates. Functionalized graphene was added to zinc-rich primer, water-based epoxy and solvent-based epoxy of one -, two and three coat systems. Resistance to corrosion and UV-radiation of different coatings systems was evaluated to understand contribution of individual factors.