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Accelerated UV weathering of polymeric systems : recent innovations and new perspectives / Joannie W. Chin in COATINGS TECH, Vol. 3, N° 2 (02/2006)
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Titre : Accelerated UV weathering of polymeric systems : recent innovations and new perspectives Type de document : texte imprimé Auteurs : Joannie W. Chin, Auteur ; Tinh Nguyen, Auteur ; Xiaohong Gu, Auteur ; Eric Byrd, Auteur ; Jonathan Martin, Auteur Année de publication : 2006 Article en page(s) : p. 20-26 Note générale : Bibliogr. Langues : Américain (ame) Index. décimale : 667.9 Revêtements et enduits Résumé : Polymeric materials used in an outdoor environment are subjected to a wide variety of environmental factors, including solar ultraviolet (UV) radiation, temperature, and moisture, in a process known as weathering. Understanding the factors that govern the weathering performance of commercial polymeric materials has great practical importance, as does the ability to relate laboratory performance of a polymeric system to its performance in the field. At present, the full potential of these materials is inhibited by the absence of a methodology for accurately predicting their service life during exposure in their end-use environments. A reliability-based methodology utilizing total effective dosage as an exposure metric has been proposed as an alternative to the conventional methodology for carrying out laboratory and outdoor weathering studies. The use of this proposed methodology involves not only a shift in paradigm but also in the way that laboratory and outdoor weathering experiments are carried out. The concepts of reciprocity and additivity, which were first introduced by the photographic community and then studied by the medical and biological communities, are also proposed as models for synthetic polymeric systems. En ligne : https://drive.google.com/file/d/1sdM_jq9cpGhaWi6mm-LpkVhp6zk44N5p/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=5491
in COATINGS TECH > Vol. 3, N° 2 (02/2006) . - p. 20-26[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 005876 - Périodique Bibliothèque principale Documentaires Disponible Accelerated weathering and chemical resistance of polyurethane powder coatings / S. Rossi in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 13, N° 3 (05/2016)
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Titre : Accelerated weathering and chemical resistance of polyurethane powder coatings Type de document : texte imprimé Auteurs : S. Rossi, Auteur ; Michele Fedel, Auteur ; S. Petrolli, Auteur ; Flavio Deflorian, Auteur Année de publication : 2016 Article en page(s) : p. 427-437 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Caractérisation
Essais accélérés (technologie)
Polyuréthanes
Résistance chimique
Revêtements -- Détérioration:Peinture -- Détérioration
Revêtements poudre:Peinture poudre
solvants
Spectroscopie d'impédance électrochimiqueIndex. décimale : 667.9 Revêtements et enduits Résumé : A study of the weathering mechanism of innovative polyurethane powder coatings has been performed. UV-B irradiation and condensation cycle accelerated tests were carried out on two different polyurethane powder coating formulations for outdoor applications. Using Fourier transform infrared spectroscopy and microscope observation, it was possible to analyze the photochemical and morphological modifications. In addition, the color and gloss changes were measured. Organic coatings are often in contact with solvents in particular during cleaning actions. The chemical resistance was then studied considering the evolution of the corrosion barrier property of the coating as a function of the solvent contact time. Electrochemical impedance spectroscopy measurements were carried out. Methylethylketone (polar) and xylene (apolar) were considered as representative solvents. Due to the strong polarity, the first solvent showed a strong interaction with the hydrogen bonds between the polyurethane chains causing the solvent uptake. The amount of solvent uptake depends on the coating chains rigidity caused by the different polyester resin monomers. The apolar xylene presented no significant interaction with the coatings. Note de contenu : - Sample characterization
- UV-B-condensation aging
- Solvent resistanceDOI : 10.1007/s11998-015-9764-2 En ligne : https://link.springer.com/content/pdf/10.1007%2Fs11998-015-9764-2.pdf Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=26284
in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 13, N° 3 (05/2016) . - p. 427-437[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 18071 - Périodique Bibliothèque principale Documentaires Disponible Accelerated weathering of oligomers by UV-B / Inwhan Oh in POLYMERS PAINT COLOUR JOURNAL - PPCJ, Vol. 210, N° 4666 (12/2020)
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Titre : Accelerated weathering of oligomers by UV-B Type de document : texte imprimé Auteurs : Inwhan Oh, Auteur ; Hak-Yul Kim, Auteur ; Sungseo Cho, Auteur ; Indrajit Bhattacharya, Auteur Année de publication : 2020 Article en page(s) : p. 18-21 Langues : Anglais (eng) Catégories : Copolymère uréthane acrylate
Essais de résilience
Oligomères
Photoréticulation
Polymères -- Effet du rayonnement ultraviolet
Polymères -- Détérioration
Polymères aliphatiquesIndex. décimale : 667.9 Revêtements et enduits Résumé : Ultra Violet (UV) energy curing is one of the fastest crosslinking techniques used to dry coatings. UV curable coatings are also one of the most environmentally friendly coating systems as they are typically solvent-free (extremely low VOC/HAPS). Oligomers being almost 100% solids (ppm level solvent residues) have low to medium average molecular weights. Hence, they are liquid at room temperatures. Some oligomers contain some monomers to help reduce their viscosity, to make it easy for the formulator to handle them. However, some industry players do not believe UV curing is really a good solution for outdoor durable coatings. Hence, Miwon Specialty Chemical Co Ltd (MSC) decided to study the performance of some its aliphatic urethane acrylates under accelerated conditions to determine their durability. This paper discusses the tests and the performance that can be achieved when certain well-designed oligomers are exposed to harsh conditions. Note de contenu : - UV curing
- Weathering test equipment
- Preparing the test
- Exposure test and results
- Table 1 : Description of oligomers
- Table 2 : Results using ASTM G154 cycle B test for the five products
- Table 3 : Measurements taken after 1500hr and 2000hr
- Table 4 : Results after testing to ASTM G154 at 1000hr
- Table 5 : Results after testing to ASTM G154 at 2000hrEn ligne : https://drive.google.com/file/d/15yJ7l-CBWLmw0F4QT0uzIQzdG-z6gbGO/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=36740
in POLYMERS PAINT COLOUR JOURNAL - PPCJ > Vol. 210, N° 4666 (12/2020) . - p. 18-21[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 23119 - Périodique Bibliothèque principale Documentaires Disponible
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Titre : Accelerated weathering of oligomers by UV-B Type de document : texte imprimé Auteurs : Inwhan Oh, Auteur ; Hak-Yul Kim, Auteur ; Indrajit Bhattacharya, Auteur ; Sungseo Cho, Auteur Année de publication : 2021 Article en page(s) : p. 72-80 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Copolymère uréthane acrylate
Essais accélérés (technologie)
Oligomères
Photoréticulation
Polymères -- Effet du rayonnement ultraviolet
Polymères -- Détérioration
Polymères aliphatiquesIndex. décimale : 667.9 Revêtements et enduits Résumé : Ultra Violet (UV) energy curing is one of the fastest crosslinking techniques used to dry coatings. UV curable coatings are also one of the most environmentally friendly coating systems as they are typically solvent-free (extremely low VOCIHAPS). Oligomers being almost 100 % solids (ppm level solvent residues) have low to medium average molecular weights. Hence, they are liquid at room temperatures. Some Oligomers contain some monomers, to help reduce their viscosity, to make the formulators job easy to handle them.
However, some industry players do flot believe UV curing is really a good solution for Outdoor durable coatings. Hence Miwon Specialty Chemical Co. Ltd. (MSC) decided to study the performance of some its Aliphatic Urethane acrylates under accelerated conditions to determine their durability. The paper discusses the tests and the performance that can be achieved when certain well-designed Oligomers are exposed to harsh conditions.Note de contenu : - UV curing
- Wheathering test equipment
- Preparing the test
- Exposure test and resultsEn ligne : https://drive.google.com/file/d/1d1nS47mEYceJ5_92Uu40Fc1W6Jo9VmH-/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=36881
in PAINTINDIA > Vol. LXXI, N° 10 (10/2021) . - p. 72-80[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 23037 - Périodique Bibliothèque principale Documentaires Disponible Accelerated weathering of photovoltaic modules / Andreas Riedl in POLYMERS PAINT COLOUR JOURNAL - PPCJ, Vol. 203, N° 4588 (09/2013)
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Titre : Accelerated weathering of photovoltaic modules Type de document : texte imprimé Auteurs : Andreas Riedl, Auteur Année de publication : 2013 Article en page(s) : p. 18-21 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Energie solaire
Essais accélérés (technologie)
Matériaux -- Détérioration
Matériaux -- Effets du climat
PhotopilesIndex. décimale : 667.9 Revêtements et enduits Résumé : The specific challenges of how the principles of weathering testing can be applied to durability testing of PV modules are discussed by Dipl-Phys Andreas Riedl, Atlas Material Testing Technology, who suggests one approach to an appropriate test programme.
Photovoltaic (PV) modules combine a variety of materials and components like glass, encapsulants, backsheets, adhesives, framing and fixtures, junction boxes and cables. Each component reacts to the impact of solar radiation, heat and moisture in its specific way and contributes to the overall weather ageing of the complete module. Due to the complex nature of the system, the high lifetime expectation and the size of the test specimens, weathering testing of PV modules is both a technical and economic challenge. Nevertheless, appropriate accelerated weathering test methods for complete PV modules, as well as their individuel mate-rials and components are required to back up warranty statements, support bankability, ensure return of investment and avoid liability claims.Note de contenu : - Weathering takes time as the maximum stress levels have to be realistic
- Primary weather factors have to act simultaneously and in a cyclic manner
- The laboratory light has to resemble the sun to avoid unrealistic degradation
- HOW LONG WILL A MODULE LAST ?
- ENVIRONMENTAL DURABILITY TESTING OF PV MODULES : The laboratory test equipment used has to be big enough tohold a full module - All relevant stresses (heat, moisture, radiation, salt,freeze-thaw, corrosion, etc.) have to be applied on the same module under test, as they are in the real world - The primary weather factors heat, moisture and radiation have to be applied simultaneously and in a cyclic manner - The test programme has to be long enough to achieve sufficient accumulation of stresses and damage - The PV modules have to be operated during weathering testing - In addition to the laboratory accelerated test, identical modules should be exposed outdoors under benchmark conditions for referenceEn ligne : https://drive.google.com/file/d/1QW0gBR4s3pW_jeA1QkZ5fRco6FfBv_WB/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=19314
in POLYMERS PAINT COLOUR JOURNAL - PPCJ > Vol. 203, N° 4588 (09/2013) . - p. 18-21[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 15497 - Périodique Bibliothèque principale Documentaires Disponible Accelerated weathering of wood coatings - Development of a new test cycle / Marinus Hoeflaak in EUROPEAN COATINGS JOURNAL (ECJ), N° 1-2/96 (01-02/1996)
PermalinkAccelerated weathering of wood surfaces coated with multifunctional alkoxysilanes by sol-gel deposition / Mandla A. Tshabalala in JOURNAL OF COATINGS TECHNOLOGY (JCT), Vol. 75, N° 943 (08/2003)
PermalinkAccelerated weathering testing in POLYMERS PAINT COLOUR JOURNAL - PPCJ, Vol. 200, N° 4544 (01/2010)
Permalink"Accelerated weathering". The need of OEMs / Deepak Shanbhag in PAINTINDIA, Vol. LXII, N° 1 (01/2012)
PermalinkAccelerating coatings development with high throughput technology in COATINGS TECH, Vol. 14, N° 8 (08/2017)
PermalinkAccelerating dry time and early hardness development of near-zero VOC waterborne alkyd dispersions / Erin Vogel in SURFACE COATINGS INTERNATIONAL, Vol. 99.6 (12/2016 - 01/2017)
PermalinkAccelerating the move to waterborne coatings with sustainable additives solutions / Jean-Yves Desrats in POLYMERS PAINT COLOUR JOURNAL - PPCJ, Vol. 203, N° 4582 (03/2013)
PermalinkAcceptance testing for coatings in insulated service / Michael F. Melampy in JOURNAL OF PROTECTIVE COATINGS & LININGS (JPCL), Vol. 34, N° 3 (03/2017)
PermalinkAccuracy of the weathering of paints containing titanium dioxide pigments - A critical retrospective on 20 years of weathering / J. Schmelzer in SURFACE COATINGS INTERNATIONAL, Vol. 90, 6 (09/2007)
PermalinkAccurate positioning for robot painting in INTERNATIONAL SURFACE TECHNOLOGY (IST), Vol. 8, N° 2 (2015)
PermalinkAchieving class a appearance on fiber-reinforced substrates / Donald H. Campbell in COATINGS TECH, Vol. 18, N° 6 (06/2021)
PermalinkAchieving flame-retardant properties without red phosphorus in POLYMERS PAINT COLOUR JOURNAL - PPCJ, Vol. 209, N° 4651 (05/2019)
PermalinkAchieving quality / David C. Crosby in PAINTINDIA, Vol. XLVII, N° 4 (04/1997)
PermalinkAcid catalyst amino cross-linked systems and coating troubleshooting / Ashiwni Rokde in PAINTINDIA, Vol. LXV, N° 9 (09/2015)
PermalinkAcid curing wood finishes containing alkyd and amino resins / P. L. Joshi in PAINTINDIA, Vol. LIV, N° 1 (01/2004)
PermalinkAcid etch of automotive clearcoats. II. Comparison of degradation chemistry in laboratory and field testing / P. J. Schmitz in JOURNAL OF COATINGS TECHNOLOGY (JCT), Vol. 72, N° 902 (03/2000)
PermalinkAcid etch resistance of automotive clearcoats. I : Laboratory test method development / Joseph W. Holubka in JOURNAL OF COATINGS TECHNOLOGY (JCT), Vol. 72, N° 901 (02/2000)
PermalinkAcid-resistant organic coatings for the chemical industry : a review / Victor Buhl Møller in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 14, N° 2 (03/2017)
PermalinkPermalinkAcoustical studies on epoxy resins in 1,4-dioxane / Rajesh Trehan in PAINTINDIA, Vol. LIII, N° 7 (07/2003)
PermalinkAcrylate boron silane polymer/carbon nitride–titanium dioxide composite coatings with enhancing photocatalytic antifouling performance under visible light / Yakun Li in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 20, N° 4 (07/2023)
PermalinkAcrylate grafted dehydrated castor oil alkyd-A binder for exterior paints / Subhasri Majumdar in PAINTINDIA, Vol. XLIX, N° 8 (08/1999)
PermalinkAcrylate grafted dehydrated castor oil alkyd : A binder for exterior paints / Subhasri Majumdar in JOURNAL OF COATINGS TECHNOLOGY (JCT), Vol. 70, N° 879 (04/1998)
PermalinkAcrylate monocoats for structural bonding / Rolf Nothhelfer-Richter in EUROPEAN COATINGS JOURNAL (ECJ), N° 5 (05/2022)
PermalinkAcrylated products designed for formability and adhesion enhancement / William Schaeffer in POLYMERS PAINT COLOUR JOURNAL - PPCJ, Vol. 201, N° 4559 (04/2011)
PermalinkAcrylates in coatings applications / Peter Mischke in EUROPEAN COATINGS JOURNAL (ECJ), N° 7-8/00 (07-08/2000)
PermalinkAcrylic and acrylic/styrene copolymer dispersions / Manfred Schwartz in EUROPEAN COATINGS JOURNAL (ECJ), N° 3/98 (03/1998)
PermalinkAcrylic binders for optimal paint film structure with improved exterior durability / Francine Signoret in POLYMERS PAINT COLOUR JOURNAL - PPCJ, Vol. 203, N° 4588 (09/2013)
PermalinkAcrylic-cellulose acetate butyrate automotive lacquers / D. A. Raval in PAINTINDIA, Vol. XLVIII, N° 11 (11/1998)
PermalinkAcrylic dispersants / V. Kumar in PAINTINDIA, Vol. XLIX, N° 6 (06/1999)
PermalinkAcrylic dispersion resins / Clive H. Hare in PAINTINDIA, Vol. XLV, N° 8 (08/1995)
PermalinkAcrylic emulsion copolymers / Girish S. Nagarkar in PAINTINDIA, Vol. XLVII, N° 7 (07/1997)
PermalinkAcrylic functional monomers (Part I) / V. C. Malshe in PAINTINDIA, Vol. XLV, N° 4 (04/1995)
PermalinkAcrylic functional monomers (Part II) / V. C. Malshe in PAINTINDIA, Vol. XLVI, N° 3 (03/1996)
PermalinkAcrylic gloss paints : new developments / David Sykes in EUROPEAN COATINGS JOURNAL (ECJ), N° 4/95 (04/1995)
PermalinkPermalinkAcrylic modification of an acid catalyzed varnish / Mike Praw in COATINGS TECH, Vol. 9, N° 2 (02/2012)
PermalinkAcrylic monomers for radiation curing / M. Uminski in SURFACE COATINGS INTERNATIONAL, Vol. 78, N° 6 (06/1995)
PermalinkAcrylic polymer influence on the structure and morphology of AgNPs obtained by chemical method for antimicrobial applications / Alexandra Pica in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 13, N° 1 (01/2016)
PermalinkAcrylic polymers in surface coatings / N. R. Kondekar in PAINTINDIA, Vol. XLVII, N° 7 (07/1997)
PermalinkAcrylic polyols and their applications / P. Kabra Ashwini in PAINTINDIA, Vol. LVIII, N° 5 (05/2008)
PermalinkAcrylic powder coatings / S. G. Yeates in SURFACE COATINGS INTERNATIONAL, Vol. 78, N° 10 (10/1995)
PermalinkAcrylic resins / Ulrich Poth / Hannover [Germany] : Vincentz Network GmbH & Co. (2011)
PermalinkPermalinkAdaptation of advanced coating in new generation fighter class aero-engines / Benudhar Sahoo in PAINTINDIA, N° spécial (02/2002)
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