[article]
| Titre : |
A new approach in the development and testing of antifouling paints without organotin derivatives |
| Type de document : |
texte imprimé |
| Auteurs : |
K. Vallee-Rehel, Auteur ; B. Mariette, Auteur ; P. A. Hoarau, Auteur ; P. Guerin, Auteur ; V. Langlois, Auteur ; J. Y. Langlois, Auteur |
| Année de publication : |
1998 |
| Article en page(s) : |
p. 55-63 |
| Note générale : |
Bibliogr. |
| Langues : |
Américain (ame) |
| Index. décimale : |
667.9 Revêtements et enduits |
| Résumé : |
Environmental concerns have led to a progressive withdrawal of antifouling paints containing organotin derivatives. Resanbio®, a cooperative research program, plans to develop new antifouling paints that are more compatible with living species. In the first stage, we studied specific acrylic polymers with a variable hydrophilic/hydrophobic balance and, in some cases, pendant hydrolyzable functions. To evaluate the ability of these materials for hydrolysis, biocides release, and erosion, test panels with formulated films were prepared and immersed in sea water. An analytical protocol was established to characterize the polymeric material, to reveal chemical reactions that occur during erosion and antifouling action, and to understand the influence of the resin chemical structure on the paint’s antifouling efficiency. The degradation of these binders was revealed by the appearance of a product resulting from the hydrolysis. This product was identified and quantified by GC-MS. The release of cuprous oxide as model molecule, due to its water solubility and biocide activity, was quantified by inductively coupled plasma. The different processes used are explained and illustrated by an example of an efficient, erodable, antifouling paint following 22 months of immersion. |
| Note de contenu : |
- CHOICE AND CHARACTERIZATION OF THE CHEMICAL STRUCTURES
- PERFECTING THE ANALYTICAL PROTOCOL : Choice of the coatings - Choice of the substrates - Analytical protocol
- EVALUATION OF TWO NEW BINDERS WITHOUT ORGANOTIN DERIVATIVES : Hydrolysis and biocides release - Study of the effects of fillers
- EVALUATION OF ANTIFOULING ACTIVITY ON NATURAL SITE |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=17995 |
in JOURNAL OF COATINGS TECHNOLOGY (JCT) > Vol. 70, N° 880 (05/1998) . - p. 55-63
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