CORROSION INHIBITION OF ALUMINIUM BY DEPOSITION OF POLYPYRROLE AND SILANE COMPOUNDS
Published: 2008
Author(s) Name: E. Mazarío, L. Cabrera and P. Herrasti
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Abstract
In this work it has been studied the electrodeposition of polypyrrole over 2024-T3 aluminum electrodes and
deposition of silanes of short and long chain, either at the aluminum surface as over the deposited polypyrrole.
It has been analyzed the inhibition that these deposits present towards corrosion in aggressive media, such
as a 3 % NaCl solution. Results show that deposits composed by polypyrrole and long chain silanes conduct
to a better protection as a result of their low porosity. This characteristic neither allows the insertion of chloride
ions nor permits oxygen diffusion to the substrate’s surface.
Key words: Polypyrrole and silone compound Aluminium.
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