A new anti-rust coating has been developed by Nanyang Technological University (NTU) researchers for metal applications. The coating has microscopic capsules embedded with chemicals that can easily react with water.
When the anti-rust coating is scratched, the capsules are broken down and in turn produce chemicals, which generate a self-healing effect. The released chemicals react with moisture or water to create a plastic- like sealant on the scratch. This prevents corrosion of metal products.
An assistant professor at NTU who headed the research work, Yang Jinglei stated that corrosion losses can be approximately 5% of a country's GDP. Generally, a protective layer is applied using an organic coating method. But, when the layer is scratched, the metals are subjected to corrosion. The new anti-corrosive coating is cost-effective and prevents the need for a synthetic catalyst.
Jinglei further informed that the self-healing coating material has undergone testing in harsh environmental conditions such as sea water and humidity. It can be utilized in several applications, including the shipping industry.