Epoxy/Ppy-oxide films composite protect metal against corrosion.

Abstract

The three particles of γ-Fe₂O₃ Ppy and Ppy-oxit with very small sizes obtained by chemical synthesis are incorporated ill epoxy to form protective composite films on Ct3 steel. The result of corrosion test show that these composite films can protect metal much better than epoxy films in the same thickness. The γ-Fe₂O₃ oxide has a posibility ofadherence improvement ofthe films. Ppy can self-heal by supply of its positive charge at corrosion metal possitions to maintain the metal in its passive state. So the presence of both γ-Fe₂O₃ oxide and Ppy in epoxy films give the best protective result.