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A Study on the Effect of Surface Profile on Pull-off Adhesion Strength Value of Organic Coatings

Coatings have been used as a primary method to protect the substrate underneath from corrosion in various geographical environments. A diverse range of generic coating types are available to protect the metals in different corrosive environments. Selection of the right coating for a specific metallic substrate at given operating conditions and environment is key to avoiding any premature failures of coating.

Product Number: 51323-19225-SG
Author: Srikanth Kambhampati, Qing Cao, Varun Ghodkay, Hanan Farhat, Thunyaluk Pojtanabuntoeng
Publication Date: 2023
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$20.00
$20.00

Pull-off adhesion testing is a commonly used method to determine the coating adhesion strength. Relying on the pull-off adhesion testing technique to determine the coating adhesion strength is increasingly common due to its quantitative result. This study focuses on how the pull-off adhesion strength value of the coating is affected by the change in critical factors i.e. surface profile morphology (spherical, sharp & angular) and a range of surface roughness profile height (μm). Test sample surface was prepared to visually clean steel with diverse sizes and shapes of abrasives, coated with a 3 coat system. Pull-off adhesion testing was performed on the fresh coating and after exposing the coating to cyclic ageing test conditions adopted from ISO12944-9, Annex B. Additionally, electrochemical impedance spectroscopy (EIS) and surface characterization of abrasives using scanning electron microscopy (SEM) and cross sectional analysis of coating sample after ageing with SEM-EDS (Scanning electron microscopy-Energy dispersive spectroscopy) were also performed.

Pull-off adhesion testing is a commonly used method to determine the coating adhesion strength. Relying on the pull-off adhesion testing technique to determine the coating adhesion strength is increasingly common due to its quantitative result. This study focuses on how the pull-off adhesion strength value of the coating is affected by the change in critical factors i.e. surface profile morphology (spherical, sharp & angular) and a range of surface roughness profile height (μm). Test sample surface was prepared to visually clean steel with diverse sizes and shapes of abrasives, coated with a 3 coat system. Pull-off adhesion testing was performed on the fresh coating and after exposing the coating to cyclic ageing test conditions adopted from ISO12944-9, Annex B. Additionally, electrochemical impedance spectroscopy (EIS) and surface characterization of abrasives using scanning electron microscopy (SEM) and cross sectional analysis of coating sample after ageing with SEM-EDS (Scanning electron microscopy-Energy dispersive spectroscopy) were also performed.

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09007 Reliability on Coating Pull-off Adhesion Strength Test

Product Number: 51300-09007-SG
ISBN: 09007 2009 CP
Author: C. S. Shin, Yun Ho Baek, E. H. Song, S.M. Son, K. K. Baek and M.K. Chung
Publication Date: 2009
$20.00