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Accession Number:
ADA056150
Title:
Further Evaluation of a Diffusion Model for the Characterization of the Leaching Properties of Several Conventional Antifouling Coatings.
Corporate Author:
NEW ORLEANS UNIV LA DEPT OF CHEMISTRY
Report Date:
1978-06-22
Abstract:
An empirical leaching model based on Ficks First Law of Diffusion has been developed for evaluating and comparing the leaching properties of a series of marine antifouling coatings containing organotin moieties as the active toxicant species. The model has been previously applied to the behavior of a series of coatings containing various triphenyltin and tributyltin compounds blended into a conventional vinyl-type coating. Empirical parameters could be extracted from the data for comparing leaching properties of one coating versus another by analyzing laboratory data from static leach tests. To extend the model and to further verify its utility, the present study was undertaken to apply the model to leaching data in the literature for a variety of coatings containing cuprous oxide, triphenyllead acetate and other triorganotin compounds. The results are encouraging in that the toxicant diffusion curves which are derived for these coatings have the same general form as those observed in the previous study, and the empirical parameters deduced for each coating can be rationalized in terms of the known relative properties of the various coatings. Author
Descriptive Note:
Technical rept.,
Pages:
0017
Contract Number:
N00014-76-C-0836
File Size:
8.41MB
