Surface-fragmenting, self-polishing, tin-free antifouling coatings / Ping-Lin Kuo in JOURNAL OF COATINGS TECHNOLOGY (JCT), Vol. 71, N° 893 (06/1999)

[article]  inJOURNAL OF COATINGS TECHNOLOGY (JCT) > Vol. 71, N° 893 (06/1999) . - p. 77-83 Titre : Surface-fragmenting, self-polishing, tin-free antifouling coatings Type de document : texte imprimé Auteurs : Ping-Lin Kuo, Auteur ; Teng-Fu Chuang, Auteur ; Hsing-Lung Wang, Auteur Année de publication : 1999 Article en page(s) : p. 77-83 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Carboxylate Copolymères réticulés Cuivre -- Composés organiques Fragmentation Hydrolyse Liants Polissage Revêtements -- Additifs Revêtements antisalissures:Peinture antisalissures Sels Spectrométrie infrarouge Spectroscopie de la résonance magnétique nucléaire Index. décimale : 667.9 Revêtements et enduits Résumé : Surface-fragmenting types of self-polishing tin-free resins were characterized by IR and NMR and dernonstrated the successful synthesis of cupric carboxylate. According to the IR, 2H-NMR and 13C-NMR measurements, it is clear that the unsaturated double bonds present in the resins changed into other new bonds after drying in a manner similar to alkyd resins. These resins were used as binders to prepare antifouling paints. Scanning electron microscopy (SEM), rotary tests, raft tests, and ship tests were used to investigate the self-polishing phenomena and the antifouling ability of this type of antifouling paint. The SEM photographs obtained from the paint surfaces demonstrate self-polishing phenomena. From the rotary tests, the polishing rates of paints were measured as 10μ ∼ 5.7μ/month. The results from the raft tests show that all of the paints exhibit excellent antifouling ability and are about 80 ∼ 90% as effective as the conventional tin-containing anti fouling paints. Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=17878 [article]

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Viscometric Behaviour and Micellization of Complexes of Copper (II) Stearate with N-donor Heterocyclic Dyes / N. Mathur in TENSIDE, SURFACTANTS, DETERGENTS, Vol. 46, N° 1/1009 (01-02/2009)

[article]  inTENSIDE, SURFACTANTS, DETERGENTS > Vol. 46, N° 1/1009 (01-02/2009) . - p. 25-30 Titre : Viscometric Behaviour and Micellization of Complexes of Copper (II) Stearate with N-donor Heterocyclic Dyes Type de document : texte imprimé Auteurs : N. Mathur, Auteur ; S. Pooja, Auteur ; A. Imran, Auteur ; K. G. Ojha, Auteur Année de publication : 2009 Article en page(s) : p. 25-30 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Benzothiazoles Colorants Composés hétérocycliques Cuivre -- Composés organiques Jones-Dole, Equation de Moulik, Equation de Phénylthiourée Surfactants Viscosité Index. décimale : 668.1 Agents tensioactifs : savons, détergents Résumé : Colloido-chemical behavior of copper (II) stearate and N-donor ligands in benzene-methanol mixture of varying composition has been investigated by viscometric measurements. The critical micelle concentration values depend upon the composition of solvent mixture and are to be found in close agreement with each other. The general trend observed is that the viscometric parameters with concentration are quite different and the plots are obtained with curvature at a definite concentration corresponding to critical micelle concentration at which there is marked change in the aggregation of the complex molecules. The results of phenylthiourea and benzothiazole complexes in regards to solute-solvent and solute-solute interactions in mixed solvent systems have been discussed in terms of the equations proposed by Moulik and Jones-Dole. The complexes were synthesized with N-donor ligands and copper (II) stearate and characterized by their elemental analysis, molecular weight, melting point, IR and NMR spectral studies. Due to the surface-active properties of copper stearate, the complexes show remarkable applications in industries and are used as emulsifiers, dispersing agents, foaming and wetting agents. N-donor ability of ligands make them useful as intermediates for many organic compounds such as colorants, agrochemical and pharmaceutical. They are good antiviral, antibacterial and antimalerial agents. Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=3717 [article]

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