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A step forward in coating performance / Bill Nanson in POLYMERS PAINT COLOUR JOURNAL - PPCJ, Vol. 198, N° 4528 (09/2008)  

[article]  inPOLYMERS PAINT COLOUR JOURNAL - PPCJ > Vol. 198, N° 4528 (09/2008) . - p. 18-20 Titre : A step forward in coating performance Type de document : texte imprimé Auteurs : Bill Nanson, Auteur ; Tom Landuydt, Auteur ; Daniel Rogez, Auteur Année de publication : 2008 Article en page(s) : p. 18-20 Langues : Anglais (eng) Catégories : Encapsulation Résistance au lavage Revêtements en phase aqueuse -- Additifs:Peinture en phase aqueuse -- Additifs Stabilisant à la lumière de type amine encombrée Index. décimale : 667.9 Revêtements et enduits Résumé : The author describes the Novel Encapsulated Additive Technology, which is a significant advance for waterborne coatings. NEAT enables the development of waterborne coatings with equivalent performance to that of state-of-the-art solvent-borne systems. This novel encapsulation technology allows Ciba Tinuvin DW UVAs and HALS to be used in aqueous systems. The easy stir-in incorporation of these NEAT light stabilisers requires no additional co-solvent. NEAT light stabilishers offer durable protection due to high washout resistance and they compromise neither transparency nor gloss. Note de contenu : - Novel encapsulated additives technology (NEAT) - Washout resistance - Gloss retention - Waterborne versus solventborne En ligne : https://drive.google.com/file/d/1jS3jal0QrkfsCGhMUvIUjh29h-_F9jHS/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=27613 [article]

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Next generation polyurethane / Stefan Mößmer in POLYMERS PAINT COLOUR JOURNAL - PPCJ, Vol. 198, N° 4528 (09/2008)  

[article]  inPOLYMERS PAINT COLOUR JOURNAL - PPCJ > Vol. 198, N° 4528 (09/2008) . - p. 22-26 Titre : Next generation polyurethane Type de document : texte imprimé Auteurs : Stefan Mößmer, Auteur Année de publication : 2008 Article en page(s) : p. 22-26 Langues : Anglais (eng) Catégories : Agents dispersants (chimie) Haut extrait sec Polyuréthanes Revêtements -- Additifs:Peinture -- Additifs Stabilisants (chimie) Index. décimale : 667.9 Revêtements et enduits Résumé : The author discusses the development of Disperbyk-2155, which provides a high molecular weight for stabilisation and solids content. Due to its innovative sphere-like structure, Disperbyl-2155 combines high molecular weight with high solids content, therefore opening up new horizons in the wetting and dispersing of pigments in high solid as weel as in conventional coating systems. It displays outstanding deflocculation and stabilisation properties, effectively reducing mill base viscosity, is storage-stable and shows wide compatibility with many different types of resin systems. The next generation polyurethane wetting and dispersing additive Disperbyk-2155 is designed to be used in pigment concentrates for automotive coatings, floor coatings (based on polyurethane and epoxy), polyurethane foams and thanks to its 100% solids content also for solvent-free UV systems. In addition, the additive has been successfully used in co-grinding systems. Note de contenu : - Pigment stabilisation in high solid systems - Results in white reductions En ligne : https://drive.google.com/file/d/1b6nLKkDdYUjRyR1YEqXsXKH1kbBWy73S/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=27614 [article]

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Simulating natural sunlight / Matt McGreer in POLYMERS PAINT COLOUR JOURNAL - PPCJ, Vol. 198, N° 4528 (09/2008)  

[article]  inPOLYMERS PAINT COLOUR JOURNAL - PPCJ > Vol. 198, N° 4528 (09/2008) . - p. 28-30 Titre : Simulating natural sunlight Type de document : texte imprimé Auteurs : Matt McGreer, Auteur ; Jamie Chesler, Auteur Année de publication : 2008 Article en page(s) : p. 28-30 Langues : Anglais (eng) Catégories : Analyse spectrale Essais accélérés (technologie) Essais accélérés (technologie) -- Appareils et matériels Filtres Rayonnement solaire Rayonnement ultraviolet Simulation, Méthode de Index. décimale : 667.9 Revêtements et enduits Résumé : The author provides an insight into filtering technology breakthroughs which replicate natural sunlight. Due to the need for more rapid evaluations and tighter control of test conditions, many plastics engineers turn to accelerated testing devices with artificial light sources over outdoor exposure to test the resistance of materials to weathering. While the novice weathering experimenter in a polymer-testing laboratory might only be concerned with the quantity of light energy deposited on their specimens, it is the 'quality' of the light source (when compared with natural sunlight) that determines the potential correlation with natural, outdoor exposures. In this paper, spectral power distribution graphs representing both full spectrum and short wavelenght UV ranges will be discussed. This data will highlight new break-throughs in filtering technology that now replicate natural sunlight in the short wavelength UV more closely than ever before in commercially available xenon-arc weathering instruments. Note de contenu : - Defining solar radiation - History of artificial weathering devices - Xenon arc sources - GRAPHICS : 1. Spectral power distribution of Miami peak sunlight at site latitude - 2. Fluorescent UV vs natural sunlight - 3. Spectral power distribution of Xenon arc lamps with varous filter combinations (irradiance normalised to 1,70W/(m^2 6 nm) at 560 nm - 4. Right light filter system vs sunlight En ligne : https://drive.google.com/file/d/1XSgz8g078jUbeb0XbMxOGHJ6rsE_UXJ3/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=27615 [article]

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Binder technology for low VOCs / Andrew Trapani in POLYMERS PAINT COLOUR JOURNAL - PPCJ, Vol. 198, N° 4528 (09/2008)  

[article]  inPOLYMERS PAINT COLOUR JOURNAL - PPCJ > Vol. 198, N° 4528 (09/2008) . - p. 34-35 Titre : Binder technology for low VOCs Type de document : texte imprimé Auteurs : Andrew Trapani, Auteur Année de publication : 2008 Article en page(s) : p. 34-35 Langues : Anglais (eng) Catégories : Brillance (optique) Liants Polyacryliques Revêtements -- Additifs:Peinture -- Additifs Revêtements en bâtiment:Peinture en bâtiment Index. décimale : 667.9 Revêtements et enduits Résumé : The author has developed an acrylic hybrid binder technology platform, which achieves VOC-compliant performance. Rohm and Haas has been a pioneer in the development of acrylic chemistry for the architectural coatings market since the introduction of the first all-acrylic binder in 1953. However, the high gloss segment of this market has proved difficult to penetrate, as solvent-based alkyd technology provides excellent application and initial appearance properties. Implementation of Phase II of the EU Deco Paint Directive 2004/42/EC restricting VOC emissions on January 1, 2010 has provided an extra incentive to make improvements to the previous acrylic technology. Rohm and Haas has recently completed a fundamental research programme, resulting in a new acrylic hybrid binder technology platform, Hydrotech. To achieve the new level of VOC-compliant performance, an additional ambient-curing component has been incorporated into the acrylic dispersion's composition. This additional functionality delivers improvements in the open time, gloss, flow and levelling, whithout compromising the good film properties of the pure acrylic, such as exterior durability, hardness and low yellowing. Note de contenu : - Products needs - Chemistry - Performance of the new binder En ligne : https://drive.google.com/file/d/1iu0QpDjziUDUzZ8u8gryCBUd7qXHMhtQ/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=27616 [article]

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Doping for a better cleaning agent / Stephan Peter Bloess in POLYMERS PAINT COLOUR JOURNAL - PPCJ, Vol. 198, N° 4528 (09/2008)  

[article]  inPOLYMERS PAINT COLOUR JOURNAL - PPCJ > Vol. 198, N° 4528 (09/2008) . - p. 36-45 Titre : Doping for a better cleaning agent Type de document : texte imprimé Auteurs : Stephan Peter Bloess, Auteur ; Peter Jakob Gross, Auteur Année de publication : 2008 Article en page(s) : p. 36-45 Langues : Anglais (eng) Catégories : Dépolluants Dioxyde de titane Photocatalyse Photodétérioration Pollution -- Lutte contre Index. décimale : 667.9 Revêtements et enduits Résumé : The author describe improving the decomposition of pollutants and increasing the dirt-repelling properties of materials with doped titanium dioxide. Titanium dioxide is by far the most commonly produced white pigment. In addition to its extraordinary hiding power and excellent whitening properties, this transition metal oxide features other remarkable capabilities. Photochemical processes at the surface of titanium dioxide allow the decomposition of organic substances (photocatalysis) and can prevent drop formation on surfaces, as well as drastically facilitate the run-off of liquids from surfaces (photohydrophilicity). The crucial element in these phenomena is light energy, which aids titanium dioxide in providing radicals for the decomposition of unwanted substances, and in influencing the wetting properties of surfaces. While until recently, only the UV portion of sunlight could be used, with the proper doping of titanium dioxide a considerable portion of the visible light can now be also explored. This achievement has significantly widened the range of applications in which titanium dioxide photocatalysts can deploy their effect. Note de contenu : - Discovery and industial exploration - Worldwide consumption and applications - Decomposition of pollutants through photocatalys - Modified titanium dioxide for improved utilisation of the light spectrum - Photocatalytic decomposition even in diffuse light En ligne : https://drive.google.com/file/d/1Lxwi3Eyk06mJSBGiacO79unl6eqXaNEq/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=27617 [article]

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