Cool interiors in hot summer days : Application of infrared reflecting coatings / Indrajit Banerjee in PAINTINDIA, Vol. LVIII, N° 1 (01/2008)

[article]  inPAINTINDIA > Vol. LVIII, N° 1 (01/2008) . - p. 89-94 Titre : Cool interiors in hot summer days : Application of infrared reflecting coatings Type de document : texte imprimé Auteurs : Indrajit Banerjee, Auteur Année de publication : 2008 Article en page(s) : p. 89-94 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Pigments inorganiques Rayonnement infrarouge Réflectivité thermique Index. décimale : 667.2 Colorants et pigments Résumé : In tropical countries, during the hot summer days, as the surrounding temperature rises the solar heat absorbed by the walls of buildings is conducted into the interiors making them uncomfortable to live. Ordinary paints, apart from whites, do not have the capacity to protect the substrate from heat accumulation and consequent conduction. However a new generation coating system formulated with Complex Inorganic Colour Pigments (CICP) actually cut-off this heat. They are infrared reflecting pigments and can reflect IR radiation incident on them to a great extent. Room temperature of buildings whose exteriors are coated with these paints is found to be lower by 40-60. This saves energy (in form of air-conditioner bills). The foregoing paper discussed in brief the principle of heat reflection by these CICPs, their usage and method of evaluating the same. Note de contenu : - Infrared reflecting coatings - Advantages : IR reflecting coating benefits (general benefits, roofing benefits) - Infrared reflecting pigments - Evaluating infrared reflecting pigments - Handling of IRR pigments : Dispersion - Blending - Role of substrate in IRR coating's performance. Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=12101 [article]

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Polyurethane coatings - An overview / Indrajit Banerjee in PAINTINDIA, Vol. LVI, N° 6 (06/2006)

[article]  inPAINTINDIA > Vol. LVI, N° 6 (06/2006) . - p. 69-80 Titre : Polyurethane coatings - An overview Type de document : texte imprimé Auteurs : Indrajit Banerjee, Auteur Année de publication : 2006 Article en page(s) : p. 69-80 Note générale : Bibliogr. Langues : Anglais (eng) Index. décimale : 667.9 Revêtements et enduits Résumé : Polyurethane as a coating medium was introduced in 1950s and has since then gained ground in terms of application. This is because of the high performance one gets from such coatings such as improved chemical and solvent resistance, mar resistance, weather resistance etc. The paper deals with the fundamentals of polyurethane -- its starting raw materials, the polyurethane reaction including kinetics of reaction and the different types of polyurethane coatings commonly used. A small section has also been dedicated to the water borne two pack polyurethane. Note de contenu : Introduction Properties of polyurethane coatingsKinetics of Urethane Reaction - Rate of Reaction Non-Catalysed Reaction Types of polyurethane coatings - Blocked Isocyanates - Characteristics - Latest development - Moisture cured systems - Characteristics - Advantages - Disadvantages - Application Air drying system : Uralkyds Two component (2K) polyurethane - polyol coatings - Advantages Water borne polyurethanes - Water borne polyurethane dispersions - Preparation of hydrophilic polyisocyanate - Properties - Advantages of Water Borne 2K Over Solvent Borne - Short-coming Conclusion Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=11563 [article]

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