Record Display for the EPA National Library Catalog


Main Title Analytical Techniques for Assessing the Effects of Acid Deposition on Painted Steel Substrates.
Author Moran, P. ; Simpson, T. ; Davis, G. ; Arah, C. ;
CORP Author Johns Hopkins Univ., Baltimore, MD. ;Martin Marietta Labs., Baltimore, MD.;Environmental Protection Agency, Research Triangle Park, NC. Atmospheric Sciences Research Lab.
Publisher Nov 88
Year Published 1988
Report Number EPA-R-814347; EPA/600/3-88/045;
Stock Number PB89-127500
Additional Subjects Steels ; Primers(Coatings) ; Corrosion resistance ; Acids ; Alkyd resins ; Microscopy ; Spectroscopy ; X rays ; Adhesive strength ; Paints ; Chemical analysis ; Graphs(Charts) ; Electrical impedance ;
Library Call Number Additional Info Location Last
NTIS  PB89-127500 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 60p
The report summarizes the outcome of studies performed for the period of October 1, 1987-May 15, 1988 of the first year of the program at The Johns Hopkins University and Martin-Marietta Laboratories. To date, initial exposure studies of painted steel (ASTM A569 CQ) coupons coated with a commercial alkyd primer/top coat system for steel structures (not bridges) and preliminary characterization of the free standing paint films have been completed. Surface analytical techniques including X-ray photoelectron spectroscopy (XPS), energy dispersive spectroscopy (EDS), and scanning electron microscopy (SEM) have been used in the characterization process. In addition, electrochemical impedance spectroscopy (EIS), fourier-transform infrared spectroscopy (FT-IR), weight loss/gain measurements, and coating/steel adhesion-strength studies have been performed to evaluate performance of sample coupons and paint films in aqueous acid environments.