Nanotechnology fights corrosion without harming the environment

30 Juli 2008
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Researchers in Germany now have developed a novel method of multilayer anticorrosion protection including the surface pre-treatment by sonication and deposition of polyelectrolytes and inhibitors. This method results in the formation of a smart polymer nanonetwork for environmentally friendly organic inhibitors. The full article can be read at Nanowerk. «Our novel coating exhibits very high resistance to corrosion attack, long term stability in aggressive media and an environmentally friendly, easy and economical preparation procedure», exlpaines Dr. Daria Andreeva in a Nanowerk interview. «We have demonstrated the general procedure for a surface important for the aircraft industry but it is similarly applicable for many types of surfaces, thus enabling many applications in advanced technologies», continues the Russian researcher.” The new method developed by a team working at the Max Planck Institute of Colloids and Interfacesin Potsdam, Germany, may avoid the use of hexavalent chromium, a natural metal known to be toxic and is recognized as a human carcinogen via inhalation. Together with her colleagues Dmitri Fix, Dr Dmitry Shchukin and Dr Helmuth Möhwald, Andreeva published a paper on the design of the group’s novel anticorrosion system in Advanced Materials “Self-Healing Anticorrosion Coatings Based on pH-Sensitive Polyelectrolyte/Inhibitor Sandwichlike Nanostructures”. The image, showing a 21 day corrosion test was taken by Dr. Andreeva.

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