LIGHT-CONTROLLABLE COATINGS FOR CORROSION PROTECTION

Novel light-controllable coating for corrosion protection are proposed. The coatings consist of porous titania particles with polyelectrolyte shell which are embedded into the organosiloxane matrix. These coatings provide controllable protection against corrosion due to stimulated release of encapsulated inhibitor under local irradiation with UV or IR laser. The healing ability of damaged photocontrollable coatings was demonstrated with the use of scanning vibration electrode technique (SVET). Laser-induced release of incorporated corrosion inhibitor (2-(benzothiazol-2-ylsulfanyl)-succinic acid (BSA)) from nanoengineered containers was observed both on single and multi container levels.