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JOURNAL OF COATINGS TECHNOLOGY (JCT) . Vol. 66, N° 832Coatings characterization using multiple techniques and statistically design experimentsMention de date : 05/1994 Paru le : 01/05/1994 |
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Ajouter le résultat dans votre panierCoatings characterization using multiple techniques and statistically designed experiments / Michael Neag in JOURNAL OF COATINGS TECHNOLOGY (JCT), Vol. 66, N° 832 (05/1994)
[article]
Titre : Coatings characterization using multiple techniques and statistically designed experiments Type de document : texte imprimé Auteurs : Michael Neag, Auteur ; Patti Wilson, Auteur ; Gary Skerl, Auteur Année de publication : 1994 Article en page(s) : p. 27-36 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Caractérisation
Evaluation
Formulation (Génie chimique)
Plan d'expérience
Revêtements:Peinture
Statistique
Tests d'efficacitéIndex. décimale : 667.9 Revêtements et enduits Résumé : This research centered on discovering individual relationships between formulation variables and the coating's performance. Variations in properties related to changes in catalyst, crosslinker, pigment, and an additive were studied using controlled stress rheometry, dynamic mechanical analysis, and tensile tests. A statistical design combining the elements of both a screening design and a response surface design significantly reduced experimental time, while fulfilling a broad array of experimental objectives. Among other things, this work revealed that the coatings were incompletely cured under typical bake conditions, the catalyst had the strongest influence on properties, and pigmentation reduced the performance properties. The results of this work led to significant improvements in the products performance and cost. Note de contenu : - EXPERIMENTAL : Instrumentation - Cure studies
- RESULTS AND DISCUSSION : Time-temperature superposition of DMA cure curves - Statistical design analysisPermalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=18626
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Code-barres Cote Support Localisation Section Disponibilité 003466 - Périodique Bibliothèque principale Documentaires Disponible 003479 - Périodique Bibliothèque principale Documentaires Exclu du prêt Mechanical stability of alkyd emulsions - Part 1 : influence of emulsion droplet size and the emulsifier / Gunilla Östberg in JOURNAL OF COATINGS TECHNOLOGY (JCT), Vol. 66, N° 832 (05/1994)
[article]
Titre : Mechanical stability of alkyd emulsions - Part 1 : influence of emulsion droplet size and the emulsifier Type de document : texte imprimé Auteurs : Gunilla Östberg, Auteur ; Björn Bergenståhl, Auteur ; Margareta Huldén, Auteur Année de publication : 1994 Article en page(s) : p. 37-46 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Emulsifiants
Gouttelettes
Particules (matières)
Polyalkydes
Revêtements en phase aqueuse -- Additifs:Peinture en phase aqueuse -- Additifs
SurfactantsIndex. décimale : 667.9 Revêtements et enduits Résumé : The limited colloidal stability of alkyd emulsions compared to that of organic solvent-borne alkyd paints is a well-known problem. For environmental reasons, however, the alkyd emulsions have a great advantage since they are waterborne. In this study, the influence of emulsifier and initial droplet size on the mechanical stability of alkyd emulsions was investigated. Anionic emulsifiers have been shown previously to be more effective than nonionic emulsifiers in the formation of alkyd emulsions. This study showed that an anionic emulsifier also gave more stable emulsions at lower concentrations than did the nonionics. If the concentration was increased, emulsions stabilized with a nonionic emulsifier showed the same stability as the one with the anionic emulsifiers. However, too high a concentration of surfactants is undesirable in paints, since it increases the water sensitivity of the paint film. The mechanical stability of emulsions stabilized with anionic emulsions was less sensitive to the initial droplet size than emulsions stabilized with a nonionic emulsifier. Note de contenu : - EMULSION STABILITY : Methods for mechanical stability
- EXPERIMENTAL : Materials - Methods
- RESULTS AND DISCUSSIONS : Influence of initial droplet size - Influence of concentration of emulsifier - Different types of emulsifiersPermalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=18627
in JOURNAL OF COATINGS TECHNOLOGY (JCT) > Vol. 66, N° 832 (05/1994) . - p. 37-46[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 003466 - Périodique Bibliothèque principale Documentaires Disponible 003479 - Périodique Bibliothèque principale Documentaires Exclu du prêt Rheologically effective organic pigments / E. E. Jaffe in JOURNAL OF COATINGS TECHNOLOGY (JCT), Vol. 66, N° 832 (05/1994)
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Titre : Rheologically effective organic pigments Type de document : texte imprimé Auteurs : E. E. Jaffe, Auteur ; C. D. Campbell, Auteur ; S. B. Hendi, Auteur ; F. Bäbler, Auteur Année de publication : 1994 Article en page(s) : p. 47-54 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Haut extrait sec
Pigments organiques
Revêtements:Peinture
Rhéologie
Traîtements de surface
ViscositéIndex. décimale : 667.9 Revêtements et enduits Résumé : Environmental considerations have stimulated research in organic pigment surface modification as well as polymeric dispersant application to lower the viscosities of modern high-solids pigment dispersions. The approach involves adsorption of specific substituted pigment derivatives (anchors) onto the pigment surface to maximize interaction with selected polymeric dispersants. More effective anchors have been found which further lower the viscosities of high-solids solvent-based paint systems. Note de contenu : - Pigment surface modification
- Opaque quinacridones
- Other pigments
- Mechanism of dispersion stabilization
- Transparent quinacridonesPermalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=18628
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Code-barres Cote Support Localisation Section Disponibilité 003466 - Périodique Bibliothèque principale Documentaires Disponible 003479 - Périodique Bibliothèque principale Documentaires Exclu du prêt The dynamic contact angle - a characteristic to predict the lifetime of a wood topcoat / Guido Hora in JOURNAL OF COATINGS TECHNOLOGY (JCT), Vol. 66, N° 832 (05/1994)
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Titre : The dynamic contact angle - a characteristic to predict the lifetime of a wood topcoat Type de document : texte imprimé Auteurs : Guido Hora, Auteur Année de publication : 1994 Article en page(s) : p. 55-59 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Angle de contact
Bois -- Revêtements protecteurs
Chimie des surfaces
Couches minces
Durée de vie (Ingénierie)
Humidité -- Absorption
Revêtements:Peinture
VernisIndex. décimale : 667.9 Revêtements et enduits Résumé : Documentation of changes in liquid water protection is of outmost importance for the characterization of the durability of an exterior wood coating. The use of the water uptake coefficient, wt, and the dynamics of a liquid water drop contact angle, Ï…(√t), for the determination of lifetime expectation is described. Both methods are found to give equivalent information regarding changes in water protection of six mainly waterborne unweathered and six-month weathered exterior wood coatings. The advantages of the contact angle method are outlined. Furthermore, a theoretical approach is presented to relate the observed proportionality of the contact angle with square root of time to diffusion controlled processes on the coatings surface. Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=18629
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