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Offering formulation freedom / Jelle van der Werf in EUROPEAN COATINGS JOURNAL (ECJ), N° 4/2011 (04/2011)
[article]
Titre : Offering formulation freedom : A novel class of co-solvent-free resins for waterborne 2K polyurethane coatings Type de document : texte imprimé Auteurs : Jelle van der Werf, Auteur ; Thomas Dikken, Auteur ; Erik de Knoop, Auteur ; Claudia Goemans, Auteur Année de publication : 2011 Article en page(s) : p. 108-112 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Polyols
Polyuréthanes
Revêtements bi-composant
Revêtements en phase aqueuse:Peinture en phase aqueuse
solvantsIndex. décimale : 667.9 Revêtements et enduits Résumé : A new class of polyols for waterborne, two-component polyurethane coatings has been developed. These new polymers are co-solvent free and combine freedom of formulation with co-solvents with an excellent performance and excellent appearance characteristics. Both the concentration and the type of co-solvent can have a profound effect on film properties in waterborne paints. Note de contenu : - Improved miscibility
- Disadvantage of polyisocyanates hydrolizing
- Thicker films
- High gloss
- Steering open timeEn ligne : https://drive.google.com/file/d/1lQbtZFBdIJLi9cp_7yLhG_fU1W6I047z/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=11166
in EUROPEAN COATINGS JOURNAL (ECJ) > N° 4/2011 (04/2011) . - p. 108-112[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 012920 - Périodique Bibliothèque principale Documentaires Disponible Perfect layers : a novel class of waterborne 2 components isocyanate curing resins / Tijs Nabuurs in DOUBLE LIAISON, N° 574 (05/2010)
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Titre : Perfect layers : a novel class of waterborne 2 components isocyanate curing resins Type de document : texte imprimé Auteurs : Tijs Nabuurs, Auteur ; Willem-Jan Soer, Auteur ; Wendy van Bavel, Auteur ; Jelle van der Werf, Auteur Année de publication : 2010 Article en page(s) : p. 24-30 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Revêtements en phase aqueuse:Peinture en phase aqueuse Tags : 'Peinture émulsion' Bi-composants Icosyanate 'Blister free film thichness (BFFT)' Formulation Index. décimale : 667.6 Peintures Résumé : Coalescents are critical in every waterborne paint formulation. Both the concentration and the type of co-solvent can have a profound effect on film properties. By using specially designed solvent free secondary polyol emulsions, so called NOVOS emulsions, the effect of various co-solvents on the film performance of waterborne 2 component polyisocyanate crosslinking coatings could be determined. Especially the evaporation rate of co-solvents has a strong effect on properties such as drying time, chemical resistance and König hardness. Coatings with a slowly evaporating coalescent yielded longer tack free times, reduced König hardness and in some cases even reduced chemical resistances. When co-solvents with a high evaporation rate were used, teck free times were achieved that were even shorter than that of solvent free formulations. It was shown that evaporation of water is accelerated when using fast solvents. Formulations containing no coalescent at all showed a very promising set of film properties, with high König hardness, short tack free times and very good chemical resistances, thus providing the ideal approach to zero-VOC coatings. Because of the nature by which the NOVOS emulsions are prepared, the concentration of acid rich polymer chains is much reduced. This causes the resulting binders to have significantly improved blister free film thickness (BFFT) compared to traditional secondary emulsions. Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=9582
in DOUBLE LIAISON > N° 574 (05/2010) . - p. 24-30[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 012225 - Périodique Bibliothèque principale Documentaires Disponible
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Titre : Perfect layers : A novel class to waterborne two-component isocyanate curing resins Type de document : texte imprimé Auteurs : Tijs Nabuurs, Auteur ; Jelle van der Werf, Auteur ; Wendy van Bavel, Auteur ; Willem-Jan Soer, Auteur Année de publication : 2009 Article en page(s) : p. 28-31 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Polyisocyanates
Polyols
Revêtements en phase aqueuse -- Séchage:Peinture en phase aqueuse -- SéchageIndex. décimale : 667.9 Revêtements et enduits Résumé : Coalescents are critical in every waterborne paint formulation. Both the concentration and the type of co-solvent can have a profound effect onfilm properties. Specially designed, solvent-free, secondary polyol emulsions, sol called NOVOS emulsions, have been used to determine the effect of various co-solvents on the film performance of waterborne, two-component, polyisocyanate crosslinking coatings. An advantage of the emulsions is their significantly improved blister-free film thickness (BFFT) compared to traditional secondary emulsions. En ligne : https://drive.google.com/file/d/1lze3pX1FMdpzQ-OZ90GVx8z5d2_yUaUd/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=6286
in EUROPEAN COATINGS JOURNAL (ECJ) > N° 10/2009 (10/2009) . - p. 28-31[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 011633 - Périodique Bibliothèque principale Documentaires Disponible WB OH functional acrylic resin technology / Jelle van der Werf in POLYMERS PAINT COLOUR JOURNAL - PPCJ, Vol. 203, N° 4581 (02/2013)
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Titre : WB OH functional acrylic resin technology Type de document : texte imprimé Auteurs : Jelle van der Werf, Auteur ; Thomas Dikken, Auteur ; Erik de Knoop, Auteur ; Claudia Goemans, Auteur ; Jon Cronin, Auteur Année de publication : 2013 Article en page(s) : p. 16-22 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Isocyanates
Polyacryliques
Polyuréthanes
Revêtements bi-composant
Revêtements en phase aqueuse:Peinture en phase aqueuseIndex. décimale : 667.9 Revêtements et enduits Résumé : The latest technology in hydroxy functional acrylic resins, improve the state-of-the-art of waterborne two-component (WB2K) polyurethane coatings.
A significant improvement in the state-of-the-art of waterborne resins for 2K isocyanate curing has been developed. The Novos resin developments are free of any co-solvents, offering formulation freedom in type and amount of co-solvents to tailor and balance specific properties such as BFFT, hardness and gloss. Application robustness has been improved by another step in maximising BFFT (up to 140µm) while improving the miscibility with economical hydrophobic isocyanates. The combination of these attributes facilitates the formulation of WB2K coatings very low VOC levels and high BFFTs that are suitable for topcoats, clear coats or even DTM one layer systems.Note de contenu : - POLYURETHANE CROSSLINKING
- METHODS
- RESULTS AND DISCUSSION : Novel waterborne resins for two-component polyurethanes - 1. Co-solvent free polyols : unprecendented WB2K formulation freedom - 2. Blister-free film thickness (BFFT) - 3. Appearance and chemical resistance - 4. Hardness - Application results 'put the theory and findings into use' : A. WB2K for topcoat that is economical and robust - B. WB2K clearcoat with low VOC and high glossEn ligne : https://drive.google.com/file/d/1fK4tAN3k07UcriSdE2qEp98naaPPTySj/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=17487
in POLYMERS PAINT COLOUR JOURNAL - PPCJ > Vol. 203, N° 4581 (02/2013) . - p. 16-22[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 14638 - Périodique Bibliothèque principale Documentaires Disponible