| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1470545 | Corrosion Science | 2010 | 8 Pages |
Abstract
Water-borne n-butyl acrylate (nBA)/styrene (Sty), 2-ethylhexyl acrylate (EHA)/Sty and nBA/EHA/Sty copolymer dispersions were applied on iron to investigate the latex/substrate interface stability. Scanning Kelvin Probe (SKP) studies were performed to detect the progress of cathodic delamination as function of the latex particle composition. The interface stability decreased with increasing polymer glass transition temperature (Tg) and in the order EHA/Sty > nBA/EHA/Sty > nBA/Sty. The surface energy of the adhesives reflected the SKP results. Electrochemical Impedance Spectroscopy (EIS) was applied to evaluate water uptake of and diffusion kinetics within the polymers. Calculated diffusion coefficients did not change with the Tg.
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
R. Posner, K. Wapner, S. Amthor, K.J. Roschmann, G. Grundmeier,