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Correlating Interfacial Moisture Content and Adhesive Fracture Energy of Polymer Coatings on Different Surfaces

Published

Author(s)

E P. O'Brien, Christopher C. White, B D. Vogt

Abstract

Environmental influences, such as ambient moisture, are well known to be detrimental to the adhesion of polymeric materials to metal surfaces. The adhesion loss does not generally correlate with the average moisture content of the polymer. Moisture accumulation at the buried polymer/metal interface is believed to be the culprit in the decrease in adhesive strength. In this work, we present measurements of the interfacial moisture content and adhesion for polymer coatings on a series of different surface chemistries. The loss of adhesive strength is found to correlate directly with the interfacial water content. As the surface treatment results in a more hydrophobic surface, the interfacial water content and fracture energy upon moisture exposure decreases.
Citation
Advanced Engineering Materials
Volume
8 No 1-2

Keywords

coatings, durability, energy release rate, neutron reflectivity, service life prediction, shaft-loaded blister test, surface energy, thin films

Citation

O'Brien, E. , White, C. and Vogt, B. (2006), Correlating Interfacial Moisture Content and Adhesive Fracture Energy of Polymer Coatings on Different Surfaces, Advanced Engineering Materials (Accessed April 22, 2024)
Created January 31, 2006, Updated October 12, 2021