Rust protection from nanocapsules

A particularly ingenious remedy for the problem of rust may be available soon. Scientists from the Max-Planck-Institut für Eisenforschung GmbH in Düsseldorf and the Max Planck Institute for Polymer Research in Mainz have succeeded in making two enormous strides towards developing a self-healing anticorrosion coating. In one study, they embedded a few 100-nanometre-sized polymer capsules containing anticorrosion payloads in a coating. They applied the coating to a metal and exposed the metal to corrosion through a crack in the coating. Thereupon, the capsules opened and released the protective payloads. As soon as the corrosive attack ended, the containers closed again. In the second study, the researchers encapsulated substances in nanocontainers that can heal small cracks and holes in the protective metal coating. The researchers thereby demonstrated that the containers were chemically altered and released the healing payloads when the corrosion process started. The containers then closed again at the end of the corrosive attack. Nanocontainers that contain anticorrosion payloads can be embedded in metal coatings. They release substances when the coating is damaged and the metal is attacked by corrosion. Max Planck chemists synthesised the capsules made of conductive polymer by the miniemulsion technique. They then decorate the containers with

The post Rust protection from nanocapsules has been published on Technology Org.

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