Electroactive polymer films for stainless steel corrosion protection

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• 作者：P. Herrasti ; P. Ocón ; A. Ibá?ez and E. Fatás
• 关键词：corrosion protection ; microhardness ; polypyrrole and polyaniline composite ; potentiodynamic curves
• 刊名：Journal of Applied Electrochemistry
• 出版年：2003
• 出版时间：2003
• 年：2003
• 卷：33
• 期：6
• 页码：533-540
• 全文大小：344 KB
• 刊物类别：Chemistry and Materials Science
• 刊物主题：Chemistry
  Electrochemistry
  Physical Chemistry
  Industrial Chemistry and Chemical Engineering
  
• 出版者：Springer Netherlands
• ISSN：1572-8838

文摘

Electroactive polymer films of polyaniline, poly-o-toluidine and a composite of both were deposited on stainless steel and their performance as protective coatings against corrosion was evaluated. Open circuit potential and potentiodynamic studies of the polymer-coated stainless steel in a corrosive medium showed a significant shift in the corrosion potential towards more positive values. Mechanical characteristics of the films were evaluated by means of microhardness measurements, revealing nonelastic films in all cases and low hardness values that increased from polyaniline to poly-o-toluidine to the composite. The best results were obtained in the case of the polyaniline-o-toluidine composite.