Dielectric cure analysis / Nathaniel T. Smith in EUROPEAN COATINGS JOURNAL (ECJ), N° 12/95 (12/1995)

[article]  inEUROPEAN COATINGS JOURNAL (ECJ) > N° 12/95 (12/1995) . - p. 930-935 Titre : Dielectric cure analysis Type de document : texte imprimé Auteurs : Nathaniel T. Smith, Auteur ; David D. Shepard, Auteur Année de publication : 1995 Article en page(s) : p. 930-935 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Diélectriques Matières plastiques Réticulation (polymérisation) Rhéologie Transition vitreuse Viscosité Index. décimale : 667.9 Revêtements et enduits Résumé : In the past, dielectric analysis (DEA) has been used as an important measurement component in the overall analysis of polymer resin systems. Much of this work has been done at the research level in determining viscosity behavior, rate of cure, and cure endpoint. In the areas where DEA has been used in the production environment, it has been in the low volume applications of aerospace composites. Within the last several years there has been an expansion of the applications where dielectric cure analysis has been used. This growth in the applications of dielectric cure analysis has expanded beyond the traditional areas of monitoring the cure of composites to include such applications as factory floor control of molding operations, monitoring resin synthesis, reduction and/or elimination of physical testing, diffusion monitoring, and SQC analysis. These applications and other techniques will be presented. Note de contenu : - Traditional cure comparison - Dielectric correlation to glass transitions - Dielectric correlation to viscosity - Dielectric comparison with DSC - Dielectric applications - Research and development - Quality assurance - Production control - Resin synthesis, batch reaction monitoring - Diffusion Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=11378 [article]

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Studying the drying and curing rates of acrylic automotive topcoats using dielectric analysis / David D. Shepard in JOURNAL OF COATINGS TECHNOLOGY (JCT), Vol. 68, N° 857 (06/1996)

[article]  inJOURNAL OF COATINGS TECHNOLOGY (JCT) > Vol. 68, N° 857 (06/1996) . - p. 99-102 Titre : Studying the drying and curing rates of acrylic automotive topcoats using dielectric analysis Type de document : texte imprimé Auteurs : David D. Shepard, Auteur Année de publication : 1996 Article en page(s) : p. 99-102 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Diélectriques Polyacryliques Réticulation (polymérisation) Revêtement -- Séchage Revêtements Index. décimale : 667.9 Revêtements et enduits Résumé : The drying and curing rates of acrylic automotive topcoats are critical to the performance and appearance of the coating and the efficiency of the manufacturing process. Typical evaluations of coatings involve post-process tests which provide little information as to the actual drying and curing rates during processing. Dielectric analysis provides a means to study the drying and curing rates under actual or simulated processing conditions. The coating is applied to a planar dielectric sensor and dielectric measurements made during the drying and curing of the coating. This provides a continuous graph related to the rate of drying and curing of the coating. This paper looks at the drying and curing rates of both solvent-based and water-based automotive topcoats. The effect of applying a clearcoat over a basecoat is examined. Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=18364 [article]

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