Menu
Search
Filters
Close
Menu

Celebrate World Corrosion Awareness Day with 20% off eCourses and eBooks with code WCAD2024 at checkout!

08002 Degradation Study of Polymer Coating: Improvement in Coating Weatherability Testing and Coating Failure Prediction

Picture for 08002 Degradation Study of Polymer Coating: Improvement in Coating Weatherability Testing and
Available for download
Product Number: 51300-08002-SG
ISBN: 08002 2008 CP
Author: Francois-Xavier Perrin, Celine Merlatti, Emmanuel Aragon, and Andre Margaillan
Publication Date: 2008
$0.00
$20.00
$20.00
Increased awareness of the environmental impact of solvent-borne anticorrosive coatings has increased the focus on long-term performance of a coating in order to make maintenance less frequent. In this work, three anticorrosive coating systems were tested. All samples were exposed to different artificial weathering tests: a neutral salt spray test (NSS ISO 9227) and four cycles (QUV ASTM G53, ASTM D5894, ISO 20340 and a new laboratory cycle). Besides, the same samples were exposed to a four years field test in locations with corrosivity classified as C3 and C5M. The degradation of the individual coats of the coating system (topcoat, basecoat and primer) were studied by FTIR spectroscopy and Dynamical Mechanical Analysis. The impact of these physicochemical changes on the corrosion protection properties of the whole system was discussed based on Electrochemical Impedance Spectroscopy (EIS) in 3wt% NaCl solution, SEM observations, pull-off-test and measurements of delaminated areas from a scribe. On the basis of these results, differences in coating degradation mechanism were identified, and controlling parameters have been identified. The relevance of various accelerated test cycles is discussed based on correlation between test results and field exposure.
Increased awareness of the environmental impact of solvent-borne anticorrosive coatings has increased the focus on long-term performance of a coating in order to make maintenance less frequent. In this work, three anticorrosive coating systems were tested. All samples were exposed to different artificial weathering tests: a neutral salt spray test (NSS ISO 9227) and four cycles (QUV ASTM G53, ASTM D5894, ISO 20340 and a new laboratory cycle). Besides, the same samples were exposed to a four years field test in locations with corrosivity classified as C3 and C5M. The degradation of the individual coats of the coating system (topcoat, basecoat and primer) were studied by FTIR spectroscopy and Dynamical Mechanical Analysis. The impact of these physicochemical changes on the corrosion protection properties of the whole system was discussed based on Electrochemical Impedance Spectroscopy (EIS) in 3wt% NaCl solution, SEM observations, pull-off-test and measurements of delaminated areas from a scribe. On the basis of these results, differences in coating degradation mechanism were identified, and controlling parameters have been identified. The relevance of various accelerated test cycles is discussed based on correlation between test results and field exposure.
Product tags
Also Purchased
Picture for Coating Failures—A Coating Supplier’s Perspective
Available for download

51313-02863-Coating Failures—A Coating Supplier’s Perspective

Product Number: 51313-02863-SG
ISBN: 02863 2013 CP
Author: Russell Spotten
Publication Date: 2013
$20.00
Picture for Accelerated Offshore Coating Performance Testing
Available for download

Accelerated Offshore Coating Performance Testing

Product Number: 51317--9134-SG
ISBN: 9134 2017 CP
Author: Benjamin Chang
Publication Date: 2017
$20.00

Offshore is a very corrosive environment with a high corrosion rate. The offshore coating service life is relatively short and extremely expensive to apply maintenance coatings onsite.  A new accelerated coating corrosion test method is proposed.
Picture for 10004 Internal Coating of Multiphase Pipelines - Requirements for the Coating
Available for download

10004 Internal Coating of Multiphase Pipelines - Requirements for the Coating

Product Number: 51300-10004-SG
ISBN: 10004 2010 CP
Author: Ole Oystein Knudsen, Astrid Bjorgum and Ann Karin Kvernbraten
Publication Date: 2010
$20.00
Categories
Industry
Recently viewed
Popular tags
View all

Association for Materials Protection and Performance

© AMPP All Rights Reserved.
Membership Terms of Content Use
Contact Customer Support