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Performance of polyester/epoxy binder coating system – studies on coating resistance, adhesion and differential scanning calorimetry.

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Title: Performance of polyester/epoxy binder coating system – studies on coating resistance, adhesion and differential scanning calorimetry.
Authors: Ismail, L.1, Ramesh, K.1, Mat Nor, N. A.1, Jamari, S. K. M.1, Vengadaesvaran, B.1, Arof, A. K.1
Source: Pigment & Resin Technology. 2016, Vol. 45 Issue 3, p158-163. 6p.
Subjects: Epoxy coatings, Polyesters, Thermal properties of surface coatings, Corrosion resistance, Impedance spectroscopy, Differential scanning calorimetry
Abstract: Purpose The purpose of this paper is to study the electrochemical, mechanical and thermal characteristics of polyester – epoxy coating systems using electrochemical impedance spectroscopy (EIS), pull-off test and differential scanning calorimetry (DSC). These are very important properties to evaluate the performance of a coating system. Proper measurement and analysis techniques are needed for a proper evaluation of these properties to ensure the coating performance.Design/methodology/approach Different ratios of polyester and epoxy resins have been blended to formulate good anticorrosive, mechanically strong and thermally stable binder coating system. EIS, pull-off test and DSC were used to evaluate these properties.Findings The sample containing 90 wt.% polyester exhibited the best corrosion resistance from the beginning until the end of exposure time. The value of corrosion resistance (Rc) obtained on the 30th day of exposure was found to be 2.89 × 108 ohm cm−2. The glass transition temperature (Tg) was found to be increasing with the incorporation of epoxy to the binder system. The result from pull-off test showed the best adhesion with the sample containing 90 wt.% polyester which also has the lowest Tg promoted better adhesion properties.Practical implications The curing time must be reduced for practical applications.Originality/value Hybrid coatings systems have been formulated. This paper discusses on the highest coating resistance obtained polymer-substrate mechanical properties and thermal characteristic of the polyester/epoxy binder resin using DSC. [ABSTRACT FROM AUTHOR]
Copyright of Pigment & Resin Technology is the property of Emerald Publishing Limited 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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DbLabel: Engineering Source
An: 115387171
AccessLevel: 6
PubType: Academic Journal
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Items – Name: Title
  Label: Title
  Group: Ti
  Data: Performance of polyester/epoxy binder coating system – studies on coating resistance, adhesion and differential scanning calorimetry.
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  Data: <searchLink fieldCode="AR" term="%22Ismail%2C+L%2E%22">Ismail, L.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Ramesh%2C+K%2E%22">Ramesh, K.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Mat+Nor%2C+N%2E+A%2E%22">Mat Nor, N. A.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Jamari%2C+S%2E+K%2E+M%2E%22">Jamari, S. K. M.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Vengadaesvaran%2C+B%2E%22">Vengadaesvaran, B.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Arof%2C+A%2E+K%2E%22">Arof, A. K.</searchLink><relatesTo>1</relatesTo>
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  Data: <searchLink fieldCode="JN" term="%22Pigment+%26+Resin+Technology%22">Pigment & Resin Technology</searchLink>. 2016, Vol. 45 Issue 3, p158-163. 6p.
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  Data: <searchLink fieldCode="DE" term="%22Epoxy+coatings%22">Epoxy coatings</searchLink><br /><searchLink fieldCode="DE" term="%22Polyesters%22">Polyesters</searchLink><br /><searchLink fieldCode="DE" term="%22Thermal+properties+of+surface+coatings%22">Thermal properties of surface coatings</searchLink><br /><searchLink fieldCode="DE" term="%22Corrosion+resistance%22">Corrosion resistance</searchLink><br /><searchLink fieldCode="DE" term="%22Impedance+spectroscopy%22">Impedance spectroscopy</searchLink><br /><searchLink fieldCode="DE" term="%22Differential+scanning+calorimetry%22">Differential scanning calorimetry</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: Purpose The purpose of this paper is to study the electrochemical, mechanical and thermal characteristics of polyester – epoxy coating systems using electrochemical impedance spectroscopy (EIS), pull-off test and differential scanning calorimetry (DSC). These are very important properties to evaluate the performance of a coating system. Proper measurement and analysis techniques are needed for a proper evaluation of these properties to ensure the coating performance.Design/methodology/approach Different ratios of polyester and epoxy resins have been blended to formulate good anticorrosive, mechanically strong and thermally stable binder coating system. EIS, pull-off test and DSC were used to evaluate these properties.Findings The sample containing 90 wt.% polyester exhibited the best corrosion resistance from the beginning until the end of exposure time. The value of corrosion resistance (Rc) obtained on the 30th day of exposure was found to be 2.89 × 108 ohm cm−2. The glass transition temperature (Tg) was found to be increasing with the incorporation of epoxy to the binder system. The result from pull-off test showed the best adhesion with the sample containing 90 wt.% polyester which also has the lowest Tg promoted better adhesion properties.Practical implications The curing time must be reduced for practical applications.Originality/value Hybrid coatings systems have been formulated. This paper discusses on the highest coating resistance obtained polymer-substrate mechanical properties and thermal characteristic of the polyester/epoxy binder resin using DSC. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Pigment & Resin Technology is the property of Emerald Publishing Limited 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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RecordInfo BibRecord:
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      – Type: doi
        Value: 10.1108/PRT-02-2014-0015
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      – Code: eng
        Text: English
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        PageCount: 6
        StartPage: 158
    Subjects:
      – SubjectFull: Epoxy coatings
        Type: general
      – SubjectFull: Polyesters
        Type: general
      – SubjectFull: Thermal properties of surface coatings
        Type: general
      – SubjectFull: Corrosion resistance
        Type: general
      – SubjectFull: Impedance spectroscopy
        Type: general
      – SubjectFull: Differential scanning calorimetry
        Type: general
    Titles:
      – TitleFull: Performance of polyester/epoxy binder coating system – studies on coating resistance, adhesion and differential scanning calorimetry.
        Type: main
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            NameFull: Ismail, L.
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            NameFull: Ramesh, K.
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            NameFull: Mat Nor, N. A.
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            NameFull: Jamari, S. K. M.
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            NameFull: Vengadaesvaran, B.
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            NameFull: Arof, A. K.
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            – D: 01
              M: 05
              Text: 2016
              Type: published
              Y: 2016
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              Value: 45
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            – TitleFull: Pigment & Resin Technology
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