Author: Pravin P. Deshpande
Publisher: CRC Press
ISBN: 1498706932
Category : Science
Languages : en
Pages : 218
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Book Description
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 wit
Author: Joan Sheppard
Publisher:
ISBN: 9781976127755
Category :
Languages : en
Pages : 204
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Book Description
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.
Author: Wei-Kang Lu
Publisher:
ISBN:
Category : Conducting polymers
Languages : en
Pages : 139
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Book Description
The anti-corrosion performance of conducting polymers coated on the mild steel and stainless steel samples which exposed to artificial brine and dilute hydrochloric acid was investigated. This work attempts to rationalize the observed corrosion processes in order to elucidate protection mechanisms from the view of a corrosion engineer. A systematic correlation between the inhibition performance of electrically conducting polymers and its electronic, molecular, and electrochemical properties was also established. Experiments were conducted to evaluate the electrochemical kinetic behavior of the oxidation of metal surfaces for the purpose of understanding the interfacial stability, oxidation response and porous film diffusion phenomena of oxidation films on metal surface. Several reaction models and revised corrosion principles are presented to discuss the protective properties of intrinsically conducting polymers from electrochemical macroscopic theories and microscopic molecular details.
Author: Yanhua LEI
Publisher: CRC Press
ISBN: 1000850641
Category : Technology & Engineering
Languages : en
Pages : 209
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Book Description
This book provides a basic introduction to the application of conductive polymers in corrosion protection, especially for marine environment corrosion protection research. Conventional anticorrosive coatings, which are based on heavy metals such as chromium, zinc, and copper, are toxic to the environment. There has been a need to find suitable replacement coatings that are environmentally friendly as well as effective in inhibiting the corrosion of steel. Conductive polymers have garnered much attention in recent years due to their environmentally benign nature and high effectiveness in protecting against corrosion. This book introduces the history of these conductive polymers. The applications of conducting polymers, polymer composites, and nanocomposites for corrosion protection of different industrial metal substrates are explored based on reported experimental data, and their mechanism of inhibition is explained. This book also includes overviews of some recent works on marine antifouling, marine heavy-protective coatings, and waterborne paints by conducting polymer and inorganic composites. Conducting polymers and their family of stimuli-actuated polymers exhibit excellent application prospects in the fields of anticorrosion, antibacterial, antibiofouling, and waterborne-based coatings. This book will be of great interest to students, scholars, and professionals alike in the field of corrosion engineering and material science.
Author: Yanhua Lei
Publisher:
ISBN: 9781032452722
Category : Corrosion and anticorrosives
Languages : en
Pages : 0
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Book Description
"This book provides a basic introduction to the application of conductive polymer in corrosion protection, especially for marine environment corrosion protection research. Conventional anticorrosive coatings which are based on heavy metals such as chromium, zinc and copper are toxic to the environment. There has been a need to find suitable replacement coatings that are environmentally friendly as well as effective in inhibiting corrosion of steel. Conductive polymers have garnered much attention recent years due to their environmentally benign nature and high effectiveness in protecting against corrosion. This book introduces the history of these conductive polymers. The applications of conducting polymers, polymer composites and nanocomposites for corrosion protection of different industrial metal substrates are explored based on reported experimental data and their mechanism of inhibition explained. This book also includes overviews of some recent works on marine antifouling, marine heavy-protective coatings, waterborne paints by conducting polymer and inorganic composites. Conducting polymers and its family of stimuli-actuated polymers exhibit excellent application prospects in the field of anticorrosion, antibacterial, anti-biofouling, and waterborne based coatings. This book will be of great interest to students, scholars, and professionals alike in the field of Corrosion Engineering and Material Science"--
Author: Artur Motheo
Publisher: BoD – Books on Demand
ISBN: 9535103857
Category : Science
Languages : en
Pages : 224
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Book Description
Since the establishment of the conductive properties of intrinsic conductive polymers, a huge variety of basic and applied research has been carried out, involving different polymers, copolymers, blends, mixtures and composites. Thus, fundamental understanding of physical and chemical properties of these materials has been sought, while the applied aspects have advanced very rapidly, crossing the boundaries between disciplines. Today, the applications of conducting polymers in various fields such as neuroscience, nanotechnology and green chemistry, are easily found. This development is dynamic and it needs to be updated and hence the motivation for the set of results presented in this book; which provides information about the development of fundamentals, and about some applications of conductive polymers.
Author: Matthew Shannon Pittman
Publisher:
ISBN:
Category :
Languages : en
Pages : 69
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Book Description
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Book Description
Corrosion of metals is a major problem in the aerospace and automobile industry. The current methods of corrosion protection such as chromate conversion coatings are under increased scrutiny from the Environmental Protection Agency (EPA) due to their carcinogenic nature. Intrinsically conducting polymers (ICPs) like polyaniline and polypyrrole have been considered as a potential replacement for chromate conversion coatings and have been under investigation since past decade. The goal of this study is to replace the chromate conversion coating by an environmentally friendly organic coating. Poly (N-ethyl aniline) coating was electrodeposited as the primer layer and polyimide-clay nanocomposite was solution cast as the barrier layer on AA-2024 alloy. This study will provide a better understanding of the corrosion protection mechanism of the conducting polymer coating. Various characterization techniques such as infrared spectroscopy, cyclic voltammetry and scanning electron microscopy were used to study the formation, chemical structure and morphology of the coatings. Electrodeposition parameters like monomer concentration, applied current density and the reaction time were varied in order to optimize the properties of the conducting polymer coating. The corrosion performance of the primer coating was evaluated by DC polarization studies. It was found that poly (N-ethyl aniline) reduces from emeraldine to leucoemeraldine form; reducing the rate of cathodic reaction, which reduces the rate of corrosion of AA-2024 alloy. Polyimide-clay nanocomposite coating was solution cast on the conducting polymer primer layer for enhancing the barrier and corrosion properties of the coating system. The concentration of polyimide (10-25 vol %) and clay (0.1 and 1 wt %) were varied in the coating formulation to optimize the barrier properties of topcoat. X-ray diffraction showed that the intergallery clay distance decreased from 17.2[alpha] to 11.79[alpha] after immidization of polyimide-clay nanocomposite coating and infrared spectroscopy suggested that there was hydrogen bonding interaction between clay and polyimide chains. DC polarization study, electrochemical impedance spectroscopy and scanning vibrating electrode technique were used to evaluate the corrosion property and model the coating degradation in corrosive medium. It was found that the corrosion property were dependent on the thickness of the barrier coat and concentration of clay in the polyimide coating. The results obtained from the above mentioned test suggest that poly (N-ethyl aniline)/polyimide-clay nanocomposite coatings system is a potential candidate to replace the traditionally used and environmentally unfriendly chromate conversion coating.
Author: Mahmood Aliofkhazraei
Publisher: BoD – Books on Demand
ISBN: 9535112236
Category : Technology & Engineering
Languages : en
Pages : 712
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Book Description
One of the first thing that comes to your mind after hearing the term “corrosion” is corrosion of a metal. Corrosion is a basically harmful phenomenon, but it can be useful in some cases. For instance, environment’s pollution with corrosion products and damage to the performance of a system are among its harmful effects, whereas electric energy generation in a battery and cathodic protection of many structures are among its advantages. However, these advantages are almost nothing as compared to the costs and effects imposed by its detrimental influences. The enormous costs of this phenomenon can be better understand through studying the published statistics on direct and indirect corrosion damages on economy of governments. The direct cost of corrosion is near 3 % of the gross domestic product (GDP) of USA. Considering this huge cost, it is necessary to develop and expand the corrosion science and its protection technologies.
Author: S.K. Dhawan
Publisher: CRC Press
ISBN: 1351588427
Category : Science
Languages : en
Pages : 320
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Book Description
The book provides an extensive coverage of conjugated polymer based nano-composite coatings with advanced anti-corrosive properties. The book gives detailed explanation of corrosion testing methods and techniques to evaluate the corrosion resistance of the coatings. It includes elaborate discussion on classification of corrosion, electrochemistry of corrosion process, theories explaining the mechanism of corrosion and various corrosion testing standards. Electrochemical studies like open circuit potential (OCP) variation with time, potentiodynamic polarization, Electrochemical Impedance Spectroscopy (EIS) and accelerated corrosion testing are highlighted as important tools to extract information about the behavior of coatings under corrosive conditions. The book discusses epoxy-conjugated polymer based novel composite coating formulations, including aniline and o-toluidine, o-anisidine, phenetidine and pentafluoroaniline with appropriate fillers like SiO2, flyash, ZrO2 nanoparticles, and chitosan for the protection of metallic substrates. A general discussion on the self healing mechanism of epoxy-polypyrrole based biopolymer hybrid composite coatings is included in this book. This book provides a critical review on the conjugated polymer based composite coatings with superior corrosion resistance, good mechanical integrity, better adhesion properties and self healing ability under highly aggressive conditions which can be commercially used for the protection of metal substrates from corrosion.
