INVESTIGADORES
DEYA Marta Cecilia
artículos
Título:
??Quebracho?? tannin derivative and boosters biocides for new
Autor/es:
N. BELLOTTI; C. DEYÁ; B. DEL AMO; R. ROMAGNOLI
Revista:
JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH
Editorial:
SPRINGER
Referencias:
Lugar: Berlin ; Año: 2012 vol. 9 p. 551 - 559
ISSN:
1547-0091
Resumen:
The growth of fouling communities on ships?
hulls causes economic losses due to increased fuel
consumption and to the deterioration of the metallic
substrate by corrosion. Antifouling paints are formulated
to avoid the settlement of these organisms and may
contain biocides as active compounds. The objective of
this research was to evaluate the antifouling performance
of paints formulated with a ??quebracho?? tannin
derivative (zinc ??tannate??) and ??boosters?? (secondary
biocides). The ??boosters?? used in this study were
bismuth lactate, a zeolite exchanged with silver cations,
and the same zeolite modified with silver chloride.
Bioassays with ??boosters?? solutions were carried out
employing Artemia persimilis. Soluble matrix antifouling
paints were formulated and their action was assessed
in a natural sea water environment. Results showed that
the bismuth lactate resulted in a coating with almost
triple service life of the antifouling paints with zinc
??tannate.?? Paints formulated with the silver composites
behaved slightly better than the control paint.
paints were formulated and their action was assessed
in a natural sea water environment. Results showed that
the bismuth lactate resulted in a coating with almost
triple service life of the antifouling paints with zinc
??tannate.?? Paints formulated with the silver composites
behaved slightly better than the control paint.
Artemia persimilis. Soluble matrix antifouling
paints were formulated and their action was assessed
in a natural sea water environment. Results showed that
the bismuth lactate resulted in a coating with almost
triple service life of the antifouling paints with zinc
??tannate.?? Paints formulated with the silver composites
behaved slightly better than the control paint.