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US 2015/0240378 A1Published application
Direct electrochemical synthesis of doped conductive polymers on metal alloys
AssigneeThe Boeing Company
InventorsPatrick John Kinlen, Lawrence Michael Lawless
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Abstract
This disclosure relates generally to the discovery of improved methods of reducing corrosion on metals and metal alloys without using hexavalent chromium reagents. More particularly, the disclosure relates to preparing corrosion resistant metals using doped conducting polymers such as polyaniline (PANI) on metal alloys such as aluminum alloys.
Claims20
A method for preparing a corrosion-resistant anodized metal surface which comprises:
- anodizing a metal surface with a solution comprising an aniline-monomer and sealing the metal surface with a seal solution comprising a thiol inhibitor so as to form the corrosion-resistant anodized metal surface.
A method for making a doped polyaniline on a metal surface comprising:
- electrochemically depositing an aniline-monomer on a metal surface to form a basic polyaniline;
- exposing the basic polyaniline on the metal surface to a thiol inhibitor so as to form a doped polyaniline on the metal surface.
An anodized metal component comprising:
- at least one anodized metal surface prepared by electrochemically depositing an aniline-monomer on a metal surface to form a basic polyaniline;
- exposing the basic polyaniline on the metal surface to a thiol inhibitor so as to form a doped polyaniline on the metal surface.
Dependencies are inferred from the claim text.