New environmentally friendly methods and materials in surface treatment - composite coatings based on polypyrroles

This work presents an overview of our research work to develop environmentally friendly methods in different chemical processes (mainly surface treatment). Chrom-free methods in different chemical processes (anticorrosion protection of metal alloys like aluminium and/or magnesium, metallization of plastics, anticorrosive treatment of tin plate etc) have been developed. The conductive polymers and in particular the polypyrroles (PPY) have been used as a new class of composite coatings inall these methods. Applications are presented, referring to corrosion protection of Al and Mg alloys, tinplate, metallizing of plastics(ABS and glass-reinforced epoxy polymers) etc.