Corrosion Protection of Metals by Intrinsically Conducting Polymers

ISBN-13: 9781498706926 / Angielski / Twarda / 2015 / 198 str.

Pravin Pralhad Deshpande; Dimitra Sazou

Opis

The use of conducting polymers for the anticorrosion protection of metals has attracted great interest during the last 30 years. The design and development of conducting polymers-based coating systems with commercial viability is expected to be advanced by applying nanotechnology and has received substantial attention recently. This book begins with corrosion fundamentals and ends with an emphasis on developments made in conducting polymer science and technology using nanotechnology. Additionally, it gives a detailed account of experimental methods of corrosion testing.

Spis treści

An Overview of Recent Developments in Coating Anticorrosion Technology Based on Conducting Polymers
Introduction
Conducting Polymers
Corrosion of Metals and Its Prevention
Corrosion Protection by CPs
References

Principles of Electrochemical Corrosion
Introduction
Electrode Reactions and Equilibrium Potential

Metal Dissolution, Charge Transfer, and Mass Transport
Electric Double Layer

Electrode Kinetics, Polarization, and Mixed Potential Theory

Exchange Current Denssity and Its Significance

Causes of Polarization
References

Corrosion Prevention Mechanisms
Introduction
Active Electronic Barrier at the Metallic Surface
Barrier Protection
Self-Healing

Anodic Protection

Controlled Inhibitor Release
Cathodic Protection
Dislocation of Oxygen Reduction
Corrosion Inhibition
Krstajic’s Model
Reduction–Oxidation
Iron Diffusion Inhibition
Polyaniline as a Bipolar Film
Synergistic Effect
References

Preparation of Protective Coatings Based on Conducting Polymers
Introduction
Basics of CP Synthesis and Polymerization Mechanism
CP-Based Protective Coatings
References

Characterization of Anticorrosion Properties
Introduction
Basics of Corrosion Rate Measurements

Weight Loss Measurements
Direct Current (DC) Electrochemical Methods

Open Circuit Potential ( Half Cell Potential Measurments, E _oc )

Polarization Techniques

Tafel Extrapolation

Potentiodynamic Measurements

Cyclic Polarization

Linear Polarization Resistance
Alternating Current (AC) Electrochemical Method: Electrochemical Impedance Spectroscopy

Theory

Experiment and Data Analysis
Zero-Resistance Ammetry
References

Strategies for Improving the Protective Efficiency of Coatings Based on Conducting Polymers
Introduction
Problems Encountered When Using Conducting Polymers in Anticorrosion Technology
CP Coatings with Improved Protective Properties
Hydrophobic and Superhydrophobic CP Coatings
References

Outlook

O autorze

Pravin P. Deshpande obtained his PhD in metallurgical engineering from Visvesvaraya National Institute of Technology, Nagpur, and joined the Department of Metallurgy and Materials Science, College of Engineering Pune (COEP),India in January 2008.Since then, he has completed a number of research projects sponsored by University Grants Commission, New Delhi; Indian Space Research Organization, Bangalore; All India Council for Technical Education, New Delhi; Indian National Science Academy, New Delhi; and University of Pune. He has authored many refereed publications, and is an active member of a study group on the metallurgical heritage of India, Indian National Academy of Engineering, New Delhi,India.

Dimitra Sazou earned a PhD in chemistry and is a current professor of physical chemistry at the Aristotle University of Thessaloniki, Greece. Dr. Sazou was a visiting researcher/professor at the Department of Chemistry, University of Houston, and the Department of Physical Sciences, University of Cyprus. Her research interests include corrosion–passivation of metals and their protection by using intrinsically conducting polymers, and focuses on understanding the physico-electrochemical processes leading to uniform and localized corrosion via the analysis of the nonlinear behavior of metal electro dissolution–passivation reactions. She has more than 25 years of experience on the topic and has authored many refereed publications.