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Corrosion protection coating containing polyaniline glass flake composite for steel

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Title: Corrosion protection coating containing polyaniline glass flake composite for steel
Authors: Sathiyanarayanan, S.1, Syed Azim, S.1, Venkatachari, G. gvchari@gmail.com
Source: Electrochimica Acta. Jan2008, Vol. 53 Issue 5, p2087-2094. 8p.
Subjects: Steel corrosion, Coating processes, Steel, Surface coatings
Abstract: Abstract: Corrosion protection of steel by glass flake (GF) containing coatings is widely used in marine atmosphere. Even though, the coatings containing glass flake are highly corrosion resistant, their performance is decreased due to the presence of pinholes and coating defects. It is well established that polyaniline containing coating is able to protect the pinhole defects in the coatings due to passivating ability of polyaniline. Hence a study has been made on the corrosion protection ability of steel using polyaniline–glass flake composite containing coating with 10% loading of glass flake in epoxy binder. The polyaniline glass flake composite (PGFC) was synthesized by chemical oxidation of aniline by ammonium persulphate in presence of glass flake. The corrosion protection ability of GF and PGFC containing coating on steel was found out by salt spray test and EIS test in 3% NaCl. In both the tests, the resistance value of the PGFC containing coating has remained at 108–109 Ωcm2 where as for the GF containing coating, the resistance values decreased to 105 Ωcm2. The enhanced corrosion protection ability of the PGFC containing coating is due to the passivation ability of the polyaniline present in the coating. [Copyright &y& Elsevier]
Copyright of Electrochimica Acta is the property of Pergamon Press - An Imprint of Elsevier Science and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
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Header DbId: egs
DbLabel: Engineering Source
An: 28077122
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
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  Data: Corrosion protection coating containing polyaniline glass flake composite for steel
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  Data: <searchLink fieldCode="AR" term="%22Sathiyanarayanan%2C+S%2E%22">Sathiyanarayanan, S.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Syed+Azim%2C+S%2E%22">Syed Azim, S.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Venkatachari%2C+G%2E%22">Venkatachari, G.</searchLink><i> gvchari@gmail.com</i>
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  Data: <searchLink fieldCode="JN" term="%22Electrochimica+Acta%22">Electrochimica Acta</searchLink>. Jan2008, Vol. 53 Issue 5, p2087-2094. 8p.
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  Data: <searchLink fieldCode="DE" term="%22Steel+corrosion%22">Steel corrosion</searchLink><br /><searchLink fieldCode="DE" term="%22Coating+processes%22">Coating processes</searchLink><br /><searchLink fieldCode="DE" term="%22Steel%22">Steel</searchLink><br /><searchLink fieldCode="DE" term="%22Surface+coatings%22">Surface coatings</searchLink>
– Name: Abstract
  Label: Abstract
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  Data: Abstract: Corrosion protection of steel by glass flake (GF) containing coatings is widely used in marine atmosphere. Even though, the coatings containing glass flake are highly corrosion resistant, their performance is decreased due to the presence of pinholes and coating defects. It is well established that polyaniline containing coating is able to protect the pinhole defects in the coatings due to passivating ability of polyaniline. Hence a study has been made on the corrosion protection ability of steel using polyaniline–glass flake composite containing coating with 10% loading of glass flake in epoxy binder. The polyaniline glass flake composite (PGFC) was synthesized by chemical oxidation of aniline by ammonium persulphate in presence of glass flake. The corrosion protection ability of GF and PGFC containing coating on steel was found out by salt spray test and EIS test in 3% NaCl. In both the tests, the resistance value of the PGFC containing coating has remained at 108–109 Ωcm2 where as for the GF containing coating, the resistance values decreased to 105 Ωcm2. The enhanced corrosion protection ability of the PGFC containing coating is due to the passivation ability of the polyaniline present in the coating. [Copyright &y& Elsevier]
– Name: AbstractSuppliedCopyright
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  Group: Ab
  Data: <i>Copyright of Electrochimica Acta is the property of Pergamon Press - An Imprint of Elsevier Science and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Value: 10.1016/j.electacta.2007.09.015
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        Text: English
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        PageCount: 8
        StartPage: 2087
    Subjects:
      – SubjectFull: Steel corrosion
        Type: general
      – SubjectFull: Coating processes
        Type: general
      – SubjectFull: Steel
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      – SubjectFull: Surface coatings
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      – TitleFull: Corrosion protection coating containing polyaniline glass flake composite for steel
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              Text: Jan2008
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              Y: 2008
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