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A shellac derivative in thermoset coatings / Jennifer T. Otto in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 7, N° 4 (07/2010)
[article]
Titre : A shellac derivative in thermoset coatings Type de document : texte imprimé Auteurs : Jennifer T. Otto, Auteur ; David L. Trumbo, Auteur Année de publication : 2010 Article en page(s) : p. 525-527 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Gomme-laque
Réticulation (polymérisation)
Revêtements:Peinture
ThermodurcissablesTags : Revêtement 'Gomme-laque' t-Butyl acetoacetate' Amine 'Addition de Michael' Réticulation Index. décimale : 667.9 Revêtements et enduits Résumé : Shellac, a naturally occurring product obtained from insects, was modified by reaction with t-butylacetoacetate. Analysis of the acetoacetylated material via NMR and elemental analysis showed that 60–80% of the available reactive moieties of shellac had been converted to ester. Crosslinked films were produced by reacting the acetoacetylated shellac with a multifunctional amine or with a multifunctional acrylate under Michael addition conditions. The films had good properties in terms of solvent resistance, hardness, and gloss, but proved to be somewhat brittle. DOI : 10.1007/s11998-010-9240-y En ligne : https://link.springer.com/content/pdf/10.1007%2Fs11998-010-9240-y.pdf Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=9777
in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 7, N° 4 (07/2010) . - p. 525-527[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 012362 - Périodique Bibliothèque principale Documentaires Disponible Use of dielectric spectroscopy for real-time in-situ reaction monitoring / Steven H. Nahm in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 3, N° 4 (10/2006)
[article]
Titre : Use of dielectric spectroscopy for real-time in-situ reaction monitoring Type de document : texte imprimé Auteurs : Steven H. Nahm, Auteur Année de publication : 2006 Article en page(s) : p. 257-265 Note générale : Bibliogr. Langues : Américain (ame) Tags : 'Méthode diélectrique' Cinétique Polyaddition Monomère Fonctionnalisation 'Addition de Michaël' 'Modification chimique' Prépolymère Polyuréthane Oligomère Polyacrylate Revêtement Monitorage Index. décimale : 667.9 Revêtements et enduits Résumé : Coating resin manufacturing requires knowledge of the extent of reaction during resin synthesis so the appropriate actions can be taken (addition of the next reactant, reaction termination, etc.). This article reports the results from experiments conducted to survey.the utility of dielectric spectroscopy (DES) as a real-time, in-situ technique to monitor the extent of reaction during synthesis of three low molecular weight resins that are representative of components used in coatings formulations. The resins made were based on very different chemistries: (1) a 100% solids polyacrylate functional oligomer from the Michael reaction between a polyacrylate monomer and an acetoacetate ester; (2) an acrylate functional monomer from the reaction between an epoxy ester and acrylic acid; and (3) a solvent-based isocyanate-terminated polyurethane prepolymer from the reaction between a mixture of diols and excess diisocyanate. In all three cases, very good to excellent correlations were found between continuous real-time DES output and the values of characteristic QC parameters (viscosity, acid number, epoxy equivalent weight, % NCO, ATR-FTIR peak heights for reactants and products, and GPC data) determined by off-line analysis of samples taken periodically during the reactions. DOI : 10.1007/s11998-006-0021-6 En ligne : https://link.springer.com/content/pdf/10.1007%2Fs11998-006-0021-6.pdf Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=3678
in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 3, N° 4 (10/2006) . - p. 257-265[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 005756 - Périodique Bibliothèque principale Documentaires Disponible Concrete deterioration : causes and its prevention / Girish A. Bhagwat in PAINTINDIA, Vol. XLIX, N° 8 (08/1999)
[article]
Titre : Concrete deterioration : causes and its prevention Type de document : texte imprimé Auteurs : Girish A. Bhagwat, Auteur Année de publication : 1999 Article en page(s) : p. 37-44 Note générale : Bibliogr. Langues : Anglais (eng) Tags : 'Matériau construction' 'Construction béton' Détérioration 'Altération matériau' Délabrement 'Analyse dommage' Cause mécanisme' Prévention 'Revêtement protecteur 'Traitement surface' Peinture Polymère 'Addition 'Adjuvant Index. décimale : 667.9 Revêtements et enduits Résumé : This paper sets out to understand concrete, particularly with reference to its use for construction of buildings and factors that lead to its deterioration. With an accent to emphasize role of surface coatings and auxiliary construction chemicals in protecting concrete from premature deterioration, some ofthe latest developments are reviewed. Note de contenu : - NATURE OF CONCRETE
- CONCRETE DETERMINATION - Chemical attack - Physical and thermal attack
- MANIFESTATIONS OF CONCRETE DETERIORATION - Inherent limiting factors in concrete posing potential problems to surface coatings
- ROLE OF SURFACE COATINGS AND AUXILIARY CONSTRUCTION CHEMICALS IN CONCRETE PROTECTION
- DEVELOPMENTS IN SURFACE COATINGS AND AUXILIARY CONSTRUCTION CHEMICALS FOR CONCRETE PROTECTION - Exterior water proof paints - Solvent based high performance coatings - Polymer emulsions as concrete admixtures - Coatings for reinforcement barsPermalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=13032
in PAINTINDIA > Vol. XLIX, N° 8 (08/1999) . - p. 37-44[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 006489 - Périodique Bibliothèque principale Documentaires Disponible