Dépouillements

Clean hulls without poisons : Devising and testing nontoxic marine coatings / Robert F. Brady in JOURNAL OF COATINGS TECHNOLOGY (JCT), Vol. 72, N° 900 (01/2000)

[article]  inJOURNAL OF COATINGS TECHNOLOGY (JCT) > Vol. 72, N° 900 (01/2000) . - p. 45-56 Titre : Clean hulls without poisons : Devising and testing nontoxic marine coatings Type de document : texte imprimé Auteurs : Robert F. Brady, Auteur Année de publication : 2000 Article en page(s) : p. 45-56 Note générale : Bibliogr. Langues : Américain (ame) Tags : Peinture  antisalissure  Coque  navire  Formulation  Protection  Article  synthèse  Adjuvant  Libération  Toxicité Index. décimale : 667.9 Revêtements et enduits Résumé : Because this paper marks 50 years since the first Mattiello Memorial Lecture, it begins with a remembrance of the man in whose honor we meet and an appreciation of his character and his contributions to the coatings industry. The body of the paper is concerned with the coating used on a hull of a ship to prevent the accumulation of barnacles and other fouling. The most effective antifouling paint now being used contains toxins and will be forbidden by international regulations within eight years. The ideal replacement will be a nontoxic material that resists the attachment of marine life and encourages the organisms to fall off the ship. This paper describes laboratory and field work during the past 18 years on a variety of fluorinated coatings and silicone coatings with these properties and criteria for formulating successful nontoxic coatings. Silicone and fluorinated coatings frustrate fouling by different mechanisms, and thus the criteria for a successful coating are distinct in important ways. Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=5828 [article]

Réservation

Réserver ce document

Exemplaires (2)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
001204	-	Périodique	Bibliothèque principale	Documentaires	Disponible
001205	-	Périodique	Bibliothèque principale	Documentaires	Disponible

Decomposable crosslinking paint : Waste minimization / Y. Nakayama in JOURNAL OF COATINGS TECHNOLOGY (JCT), Vol. 72, N° 900 (01/2000)

[article]  inJOURNAL OF COATINGS TECHNOLOGY (JCT) > Vol. 72, N° 900 (01/2000) . - p. 57-62 Titre : Decomposable crosslinking paint : Waste minimization Type de document : texte imprimé Auteurs : Y. Nakayama, Auteur Année de publication : 2000 Article en page(s) : p. 57-62 Note générale : Bibliogr. Langues : Américain (ame) Tags : Peinture  Feuil  Enlèvement  Polymère  réticulé  Décomposition  chimique  Au  trempé  Solution  Récupération  déchet Index. décimale : 667.6 Peintures Résumé : A paint film crosslinked by a reaction between a carbonyl group and a hydrazide group could be easily decomposed by dipping it in a solution containing water, solvents, and acids. The method was studied to minimize the waste produced by the elimination of the decomposable paint film. This was performed in two steps: a dipping in aqueous solution containing solvents and acids, and a successive wash with solvents. Decomposition of the crosslinking bonds and the elution of the decomposed free crosslinker took place in the first dipping process, and the elimination of the decomposed resins in the second washing process. The aqueous solution could be used for a long time without contamination by the decomposed resins, and the decomposed resin could easily be recovered from the resin solution containing no other contaminants. Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=5853 [article]

Réservation

Réserver ce document

Exemplaires (2)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
001204	-	Périodique	Bibliothèque principale	Documentaires	Disponible
001205	-	Périodique	Bibliothèque principale	Documentaires	Disponible

Angular plane curtain coating by drawdown of extruded polymer / Fan Ding in JOURNAL OF COATINGS TECHNOLOGY (JCT), Vol. 72, N° 900 (01/2000)

[article]  inJOURNAL OF COATINGS TECHNOLOGY (JCT) > Vol. 72, N° 900 (01/2000) . - p. 63-68 Titre : Angular plane curtain coating by drawdown of extruded polymer Type de document : texte imprimé Auteurs : Fan Ding, Auteur ; A. Jeffrey Giacomin, Auteur ; John C. Slattery, Auteur Année de publication : 2000 Article en page(s) : p. 63-68 Note générale : Bibliogr. Langues : Américain (ame) Tags : Polymère  Matériau  revêtement  Procédé  dépôt  Moulage  extrusion  Modélisation  Ecoulement  Fluide  newtonien  visqueux  Angle  contact  Epaisseur  couche  Simulation  numérique  Etude  théorique Index. décimale : 667.9 Revêtements et enduits Résumé : An approximate analytic solution for an angular plane curtain coating of a highly viscous Newtonian fluid is developed. We obtain expressions for the melt curtain shape, coating thickness, contact length, contact pressure, drawing force, apparent contact angle, and contact convexity. Specially constructed examples enable practitioners to apply the results without advanced training in fluid mechanics. We identify a process indeterminacy that arises in curtain coating employing a parallel slit. We show that, with a rapidly converging extrusion slit, this indeterminacy vanishes. Thus, a unique solution for the contact length is always obtained. The extension to a viscoelastic fluid is also briefly considered. Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=5854 [article]

Réservation

Réserver ce document

Exemplaires (2)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
001204	-	Périodique	Bibliothèque principale	Documentaires	Disponible
001205	-	Périodique	Bibliothèque principale	Documentaires	Disponible

Analysis of exempt paint solvents by gas chromatography using solid-phase microextraction / Golden Gate Society for Coatings Technology Technical Committee in JOURNAL OF COATINGS TECHNOLOGY (JCT), Vol. 72, N° 900 (01/2000)

[article]  inJOURNAL OF COATINGS TECHNOLOGY (JCT) > Vol. 72, N° 900 (01/2000) . - p. 69-74 Titre : Analysis of exempt paint solvents by gas chromatography using solid-phase microextraction Type de document : texte imprimé Auteurs : Golden Gate Society for Coatings Technology Technical Committee, Auteur Année de publication : 2000 Article en page(s) : p. 69-74 Note générale : Bibliogr. Langues : Américain (ame) Tags : Matériau  revêtement  Peinture  Analyse  chimique  Solvant  organique  Acétone  Acétique  acide  ester  méthyle  Toluène(4-chloro-a,a,a-trichloro)  Chromatographie  phase  gazeuse  Extraction  SPE Index. décimale : 667.9 Revêtements et enduits Résumé : Acetone, methyl acetate, and parachlorobenzotrifluoride (PCBTF or Oxsol® 100) have been exempted as VOC solvents by the U.S. Environmental Protection Agency. In measuring coating VOC content, separate methods for determining exempt solvents are required. One such method utilizes solid-phase microextraction (SPME) to sample the headspace of solvent-based coatings to which the surrogates acetone-d6, methyl acetate-d3, and/or metachlorobenzotrifluoride have been added. The sampled exempt coating solvents are thermally desorbed and analyzed using gas chromatography with flame ionization or mass spectral detection. The SPME headspace method has also been used to analyze MEK, butyl acetate, tert-butyl acetate, toluene, and xylene in solventborne coatings, and alcohols in waterborne systems. This paper presents the results obtained for acetone and toluene in a large number of aerosol paints. Additionally, the results from a round-robin study for acetone, methyl acetate, and parachlorobenzotrifluoride in commercial solvent-based coatings are reported. Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=5855 [article]

Réservation

Réserver ce document

Exemplaires (2)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
001204	-	Périodique	Bibliothèque principale	Documentaires	Disponible
001205	-	Périodique	Bibliothèque principale	Documentaires	Disponible