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2k waterborne PU systems / Philippe Olier in POLYMERS PAINT COLOUR JOURNAL - PPCJ, Vol. 200, N° 4551 (08/2010)
[article]
Titre : 2k waterborne PU systems Type de document : texte imprimé Auteurs : Philippe Olier, Auteur Année de publication : 2010 Article en page(s) : p. 13-14 Langues : Anglais (eng) Catégories : Isocyanates
Polyisocyanates
Polymères en émulsion
Polyols
Polyuréthanes
Revêtements bi-composant:Peinture bi-composant
Revêtements en phase aqueuse:Peinture en phase aqueuse
solvantsIndex. décimale : 667.6 Peintures Résumé : Research into 2K polyuréthanes and its new generation provides a solution for formulating VOC observance. En ligne : https://drive.google.com/file/d/1f1M_m1agwZmL45iysTrp8Wy9gS3DRvgE/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=9978
in POLYMERS PAINT COLOUR JOURNAL - PPCJ > Vol. 200, N° 4551 (08/2010) . - p. 13-14[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 012394 - Périodique Bibliothèque principale Documentaires Disponible Accelerated drying of water-dispersible polyurethane blends / Joseph P. Labukas in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 11, N° 2 (03/2014)
[article]
Titre : Accelerated drying of water-dispersible polyurethane blends Type de document : texte imprimé Auteurs : Joseph P. Labukas, Auteur ; John A. Escarsega, Auteur ; Dawn M. Crawford, Auteur Année de publication : 2014 Article en page(s) : p. 217-229 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Alliages polymères
Analyse mécanique dynamique
Camouflage (science militaire)
Photoamorceurs (chimie)
Polyaddition
Polyisocyanates
Polymères -- Propriétés thermomécaniques
Polyols
Polyuréthanes
Résistance chimique
Revêtements en phase aqueuse -- Séchage sous rayonnement ultraviolet:Peinture en phase aqueuse -- Séchage sous rayonnement ultraviolet
Revêtements en phase aqueuse:Peinture en phase aqueuseIndex. décimale : 667.9 Revêtements et enduits Résumé : Mixtures of water-dispersible isocyanate and polyol-terminated oligomers were blended with methacrylate-terminated urethanes and a water-dispersible photoinitiator to accelerate the dry time of thin polymer films. Thermomechanical properties of the polyurethane blends were measured using dynamic mechanical analysis. Kinetics of the ultraviolet-initiated radical polymerization reaction and the polyol/isocyanate addition reaction were monitored using attenuated total reflectance-Fourier transform infrared spectroscopy. Note de contenu : - EXPERIMENTAL : Chemicals - Film formation - Dynamic mechanical analysis - Attenuated total reflectance-Fourier Transform infrared spectroscopy
- RESULTS AND DISCUSSION : UV-activated film formation - Crosslinking and film development - Exposure of CARC to UV - Crosslinked polyurethane films - Functional group evolution during curingDOI : 10.1007/s11998-013-9536-9 En ligne : https://link.springer.com/content/pdf/10.1007%2Fs11998-013-9536-9.pdf Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=21166
in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 11, N° 2 (03/2014) . - p. 217-229[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 16196 - Périodique Bibliothèque principale Documentaires Disponible Aliphatic isocyanates blocked with volatile alcohols for decorative coatings / Yun Huang in JOURNAL OF COATINGS TECHNOLOGY (JCT), Vol. 67, N° 842 (03/1995)
[article]
Titre : Aliphatic isocyanates blocked with volatile alcohols for decorative coatings Type de document : texte imprimé Auteurs : Yun Huang, Auteur ; Guobei Chu, Auteur ; Frank N. Jones, Auteur ; Marjorie Nieh, Auteur Année de publication : 1995 Article en page(s) : p.33-40 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Alcool
Composés aliphatiques
Copolymères séquencés
Liants
Polyisocyanates
Réticulation (polymérisation)
Revêtements décoratifs:Peinture décorativeIndex. décimale : 667.9 Revêtements et enduits Résumé : Aliphatic polyisocyanates blocked with simple aliphatic alcohols, such as methanol and ethanol, are widely thought to require baking temperatures and times that are too high and/or too long for application of decorative coatings under production conditions. Here we show that polyisocyanates blocked with these alcohols can, when catalyzed with organotin catalysts, crosslink an acrylic polyol at temperatures comparable to those of commercial ε-caprolactam blocked crosslinkers. With 0.5% of dibutyl tin diacetate catalyst, methanol blocked 1,3-bis(1-isocyanato-1-methylethyl)benzene (TMXDI) and methanol blocked hexamethylene diisocyanate isocyanurate are effective crosslinkers for an acrylic polyol at 145 to 155°C. It is theorized that physical factors (blocking agent diffusion rate and volatility) strongly influence cure response. Note de contenu : - INTRODUCTION AND LITERATURE REVIEW : Overview of blocked polyisocyanates - "Cure Response" of blocked polyisocyanate coatings defined - Selected previous studies on cure response - Deblocking (Unblocking) temperatures - Other factors that can affect cure response
- RESULTS : Synthesis and characterization of blocked isocyanates - Formulations and catalyst studies - Blocking agent cure rate studies
- Discussion : Technological considerations - Mechanistic considerationsPermalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=18580
in JOURNAL OF COATINGS TECHNOLOGY (JCT) > Vol. 67, N° 842 (03/1995) . - p.33-40[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 003500 - Périodique Bibliothèque principale Documentaires Disponible
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Titre : Alternative accelerators : New water-soluble catalysts for isocyanate-crosslinking coatings Type de document : texte imprimé Auteurs : Brandon Parks, Auteur ; Lanny Venham, Auteur Année de publication : 2014 Article en page(s) : p. 34-37 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Bismuth
Brillance (optique)
Catalyseurs métalliques
Etain
Polyisocyanates
Polyuréthanes
Réticulation (polymérisation)
ZincIndex. décimale : 667.9 Revêtements et enduits Résumé : Novel water-soluble, hydrolytically stable, catalysts for isocyanate reactions have been developed based on tin, bismuth and zinc. All were effective in both waterborne and solventborne coatings, with some having performance similar to the industry standard DBTL. Stricter environmental regulations may affect the use of organotins, making the bismuth- and zinc-based products of great interest. Note de contenu : - Catalysis problems in waterborne polyurethane
- Catalysts and coating formulations
- Physical test procedures summarised
- Curing kinetics of catalysts studied
- Drying time and pot life correlated
- Physical properties and gloss
- Higher catalysts levels can speed up cure
- New catalysts are also effective in solventborne PU
- Novel, water-soluble catalysts show promise as DBTL replacementsEn ligne : https://drive.google.com/file/d/1W11Hjb9zFgqHMgIBx48P8eZoTY8iP0FZ/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=21697
in EUROPEAN COATINGS JOURNAL (ECJ) > N° 7-8 (07-08/2014) . - p. 34-37[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 16403 - Périodique Bibliothèque principale Documentaires Disponible Anionic blocked isocyanate-containing urethane prepolymer dispersions for coating applications / H. Xiao in JOURNAL OF COATINGS TECHNOLOGY (JCT), Vol. 67, N° 849 (10/1995)
[article]
Titre : Anionic blocked isocyanate-containing urethane prepolymer dispersions for coating applications Type de document : texte imprimé Auteurs : H. Xiao, Auteur ; H. X. Xiao, Auteur ; B. Suthar, Auteur ; K. C. Frisch, Auteur Année de publication : 1995 Article en page(s) : p. 19-26 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Dispersions et suspensions
Liants
Polyisocyanates
Polymères réticulés
Polyuréthanes
Résistance chimique
Réticulants
Revêtements -- Propriétés mécaniques:Peinture -- Propriétés mécaniques
Revêtements -- Propriétés thermiques:Peinture -- Propriétés thermiques
Revêtements en phase aqueuse:Peinture en phase aqueuseIndex. décimale : 667.9 Revêtements et enduits Résumé : Anionic blocked isocyanate-containing urethane prepolymer dispersions were synthesized from poly(oxypropylene) glycol, polyarylpolyisocyanate (PAPI 2094), dimethylolpropionic acid (DMPA), and methylethyl ketoxime (MEKO). A stoichiometric amount of tetraethylenepentamine (TEPA) was added as a crosslinker to the blocked polyisocyanate dispersions resulting in one-package crosslinkable, waterborne urethane coatings. The samples were characterized by means of mechanical properties, chemical resistance, differential scanning calorimetry (DSC), and thermogravimetric analysis (TGA). The deblocking kinetics of the blocked polyisocyanates at different baking temperatures were studied. Note de contenu : - EXPERIMENTAL : Raw materials - Preparation of anionic blocked isocyanate-containing urethane prepolymer dispersions - Preparation of blocked PAPI 2094 - Measurements
- RESULTS AND DISCUSSIONS : Physical properties of dispersions - Mechanical properties - Chemical resistance - Thermal behavior - Deblocking kineticsPermalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=18559
in JOURNAL OF COATINGS TECHNOLOGY (JCT) > Vol. 67, N° 849 (10/1995) . - p. 19-26[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 003495 - Périodique Bibliothèque principale Documentaires Disponible 003507 - Périodique Bibliothèque principale Documentaires Exclu du prêt Aqueous finishing with polyisocyanate cross-linked binders / Lluis Ollé in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 93, N° 6 (11-12/2009)
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PermalinkConférences Rencontres Matières premières des 4 et 20 mai 2010 / 2010
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