Lifetime Prediction of EPU/Al Low Infrared Emissivity Coatings in Damp Heat

Lifetime Prediction of EPU/Al Low Infrared Emissivity Coatings in Damp Heat

Stability of epoxy-polyurethane (EPU)/aluminum (Al) coatings (the change of coating emissivity during damp heat) was studied after exposure to the damp-heat test for varying lengths of time. We found that the emissivity increased with increasing heating temperature and time in damp heat. In addition...

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Veröffentlicht in:Applied Mechanics and Materials 2013-10, Vol.442 (Materials Engineering and Mechanical Automation), p.104-109
Hauptverfasser: Wu, Zhi Hui, Wu, Yan, Yan, Xiao Xing, Xu, Guo Yue
Format: Artikel
Sprache:eng
Schlagworte:
Aluminum
Coatings
Dampness
Emissivity
Heating
Infrared
Mathematical models
Stability
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Zusammenfassung:Stability of epoxy-polyurethane (EPU)/aluminum (Al) coatings (the change of coating emissivity during damp heat) was studied after exposure to the damp-heat test for varying lengths of time. We found that the emissivity increased with increasing heating temperature and time in damp heat. In addition, Arrhenius relationship was employed to calculate the lifetime of EPU/Al low infrared emissivity coatings in damp heat. Compared with observation data in damp heat, the calculated results validated the effectiveness of the model predictions, and showed that EPU/Al low infrared emissivity coatings exhibited good resistance to damp heat.
ISSN:1660-9336
1662-7482
1662-7482
DOI:10.4028/www.scientific.net/AMM.442.104