Cool coatings / Priyanka K. Sahu in PAINTINDIA, Vol. LXI, N° 4 (04/2011)

[article]  inPAINTINDIA > Vol. LXI, N° 4 (04/2011) . - p. 61-67 Titre : Cool coatings Type de document : texte imprimé Auteurs : Priyanka K. Sahu, Auteur ; V. A. Bambole, Auteur ; Prakash A. Mahanwar, Auteur Année de publication : 2011 Article en page(s) : p. 61-67 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Isolation thermique Protection thermique Rayonnement infrarouge Réflectivité thermique Revêtements Index. décimale : 667.9 Revêtements et enduits Résumé : The exponential growth of urban areas has produced what is called the "Urban Heat Island" effect with heat-absorbing roofs being among the chief culprits. Houses with concrete slabs which are directly exposed to sun become very hot during summer and very cold during winter. The phenomenon of urban island is becoming increasingly more intense in urban areas modifying the microclimate of these areas and aggravating the climate. The desirable reduction in this can be achieved by using cool coatings which may be heat reflective or heat insulative in nature and has found applications in various sectors. A brief overview of cool coatings has been described in this paper and it is one of the ways to conserve the energy and reduce the energy consumption. Note de contenu : - NEED OF COOL COATINGS - HEAT ISLAND EFFECT - ALBEDO - SOLAR SPECTRUM - ULTRAVIOLET REGION (295-400nm) - VISIBLE REGION (400-700nm) - INFRA RED REGION (700-2500nm) - TYPE OF COOL COATINGS - HEAT (INFRARED) REFLECTIVE COATINGS - HEAT (INFRARED) RELECTIVE PIGMENT - COMPLEX INORGANIC COLORED PIGMENTS (CICP) : General benefits - Roofing benefits - Thermal insulation coatings - Microspheres - Types of microspheres - Polymeric microspheres - Inorganic microsphere - Glass microspheres - Dispersion of microspheres. - BINDER SYSTEMS : Acrylic emulsion - SILICONE - POLYURETHANE : Hybrid polyurethane thick-film coatings - APPLICATION AREAS : Roofs coatings - Automotive coatings - Heat-reflective paint for the decks of navy vessels - Thermal insulation coatings for pipes - Thermal insulation coating for rockets and spacecrafts. Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=11664 [article]

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Polypyrrole : synthesis, modifications and applications / A. G. Badgujar in PAINTINDIA, Vol. LXI, N° 8 (08/2011)

[article]  inPAINTINDIA > Vol. LXI, N° 8 (08/2011) . - p. 53-66 Titre : Polypyrrole : synthesis, modifications and applications Type de document : texte imprimé Auteurs : A. G. Badgujar, Auteur ; V. A. Bambole, Auteur ; Prakash A. Mahanwar, Auteur Année de publication : 2011 Article en page(s) : p. 53-66 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Electrochimie Polymérisation Polypyrroles Index. décimale : 667.9 Revêtements et enduits Résumé : Polypyrrole (PPy) is one of the most promising materials for multifunctionalized applications. The present paper reviews the synthesis, modifications and applications of polypyrrole (PPy). In addition, the PPy composites and coating of different materials like polymers, polymer particles, ion-exchange membranes, glass, fiber and textile, micro and nano materials with polypyrrole are described in details according to synthetic method and their applications. At the same time, effects of various parameters such as doping, anions, additives, and oxidant, on the PPy properties are also concerned. In this review, ion exchange membranes are highlighted. Note de contenu : - Electrochemical polymerization. - Synthesis and modification of polypyrroles by electrochemical polymerization and their applications : Synthesis, properties and applications of PPy - PPy based composites and their applications - PPy based membranes - Synthesis and modification of polypyrrole by chemical polymerization and their applications : Polymer - Glass - Polymer particles - Fiber and textile - Ion-exchange membranes - Micro and nanostructured materials. Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=11872 [article]

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Thermosetting acrylic emulsion for coating - A literature review / Seena Joseph in PAINTINDIA, Vol. LIX, N° 12 (12/2009)

[article]  inPAINTINDIA > Vol. LIX, N° 12 (12/2009) . - p. 61-72 Titre : Thermosetting acrylic emulsion for coating - A literature review Type de document : texte imprimé Auteurs : Seena Joseph, Auteur ; V. A. Bambole, Auteur ; Prakash A. Mahanwar, Auteur ; Abhijit S., Auteur Année de publication : 2009 Article en page(s) : p. 61-72 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Emulsions Résines acryliques Revêtements Thermodurcissables Index. décimale : 667.9 Revêtements et enduits Résumé : Emulsions - In this paper a review of various methods of synthesis of acrylic emulsion coatings are mentioned. When a coating is applied to a substrate, solvent evaporates fromthe liquid phase resulting in the formation of a film. If the solvent used is organic solvent, the volatileorgaic compound (VOC) emitted may prove to be an environmental hazard. But if water is used as a solvent instead of the organic compound, then the VOC emitted to the atmosphere is negligible. With growing environmental awarenes and stringent laws being formed, the future of the coating industry depends on paint systems that emit minimal VOCs or no VOCs. The market study presented towards the end of this paper also indicates that there is a decrease in the market of solvent based coatings while there is a sharp increase in the market for water based coatings particularly acrylic coatings. The main objective of the review is to describe the acrylic polymer coating synthesis in detail based on the knowledge available in the open literature. Note de contenu : Acrylic resin / Acrylic emulsions : Various methods of synthesis of thermosetting acrylic coatings (resin system/coating) : Aqueous and non aqueous systems, hybrid systems - Thermal and photo degradation of acrylic resins - Conclusion and scope for acrylic coatings. Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=9046 [article]

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