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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
Abstract 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.
Supplementary Notes Prepared in cooperation with Martin Marietta Labs., Baltimore, MD. Sponsored by Environmental Protection Agency, Research Triangle Park, NC. Atmospheric Sciences Research Lab.
Category Codes 71E; 71G; 71J
NTIS Prices PC A04/MF A01
Primary Description 600/09
Document Type NT
Cataloging Source NTIS/MT
Control Number 902621319
Origin NTIS
Type CAT