100% solids polyurethane coating : A review / S. M. Naik in PAINTINDIA, Vol. LIII, N° 3 (03/2003)

[article]  inPAINTINDIA > Vol. LIII, N° 3 (03/2003) . - p. 57-70 Titre : 100% solids polyurethane coating : A review Type de document : texte imprimé Auteurs : S. M. Naik, Auteur ; D. V. Tanna, Auteur Année de publication : 2003 Article en page(s) : p. 57-70 Note générale : Bibliogr. Langues : Anglais (eng) Index. décimale : 667.9 Revêtements et enduits Résumé : The upsurge in industrial activities due to economic liberalisation has intensified the demand for high performance coatings during the last decade. The conventional high performance coatings, which were catering to the requirements of projects and maintenance segments, so far, were not in a position to fulfill the growing expectations of customers with respect to application, performance, service life and cost. The 100% solid polyurethane has gained considerable interest in the industry and is being specified and used extensively for diverse applications. Apart from environmental friendliness, the main advantages of solventless polyurethanes over solventless epoxies are their outstanding abrasion and impact resistance, coupled with significantly higher flexibility. This article will cover the current status of development in the 100 % solids polyurethane coating and important issues related to application of the coating. Note de contenu : - Chemistry of polyurethane - Technological advancement in formulating techniques - Properties of 100% solid polyurethane coating - Application of 100% polyurethane coatings - Recommended uses of 100% solids polyurethane coatings Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=12095 [article]

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High performance glassflake coatings for aggressive environments / B. P. Mallik in PAINTINDIA, N° Annuel 2003 (2003)

[article]  inPAINTINDIA > N° Annuel 2003 (2003) . - p. 87-98 Titre : High performance glassflake coatings for aggressive environments Type de document : texte imprimé Auteurs : B. P. Mallik, Auteur ; S. M. Naik, Auteur ; A. S. Khanna, Auteur ; S. Sreekumar, Auteur Année de publication : 2003 Article en page(s) : p. 87-98 Note générale : Bibliogr. Langues : Anglais (eng) Index. décimale : 667.9 Revêtements et enduits Résumé : Protecting steel structures against corrosion in highly aggressive environment involving harsh service conditions is always a challenging task. Coating technologists and researchers are in constant search of novel polymers and materials to design new generation high performance coatings that can fulfill the growing expectations of customers in terms of enhanced service life at reduced applied cost and compliance to ecological, application and safety needs. Of late extra corrosion resistance glass flake having high aspect ratio are becoming the integral part of many high performance coating due to its chemical inertness, low water vapour permeability, superior cathodic disbondment properties and abrasion resistance. Solvent free or high solid glass reinforced coatings can provide an effective solution against the premature failure of coating systems even under the most demanding service environments like splash zone in offshore refineries, underwater immersion, internal tank linings involving harsh chemicals. The present study will elaborate on the benefits of glass flake reinforcement in high solid epoxy coatings. Note de contenu : - Pigment – glass flake - Barrier effect - Torturous path of glass flake pigments - Benefits of glass flake pigments - Categories of glass flake coatings - Epoxy based glass flake coatings - Vinyl ester based glass flake coatings - Unsaturated polyester glass flake coatings - Scope of experimentation - Raw materials - Evaluation of amine hardeners - Selection of glass flake - Experimental design - Result and discussions Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=12083 [article]

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New trends in polyurethane coatings / R. N. Choudhari in PAINTINDIA, Vol. XLVIII, N° 2 (02/1998)

[article]  inPAINTINDIA > Vol. XLVIII, N° 2 (02/1998) . - p. I-VI Titre : New trends in polyurethane coatings Type de document : texte imprimé Auteurs : R. N. Choudhari, Auteur ; S. M. Naik, Auteur ; G. K. Pai, Auteur Année de publication : 1998 Article en page(s) : p. I-VI Note générale : Bibliogr. Langues : Anglais (eng) Index. décimale : 667.9 Revêtements et enduits Résumé : The possibility of using high solids or aqueous binder for two pack polyurethane paints has made an important contribution to reducing the emission of organic solvent s during paint manufacturing and application. Given the appropriate drying conditions, the physical properties of high solids and aqueous two pack polyurethane paints are comparable with thoses of conventional two pack polyurethane paints. The new systems can be used in industrial finishing, provided the application conditions and machinery are correctly matched. With sutomers insisting on high quality environmentally friendly products, these new high solids and aqueous polyurethane coatings will emerge as the ultimate choice. Developments in the field of new isocyanates and co-reactants will further increase the possibility of producing high solids systems designed to meet lower VOC requirements, while maintaining or improving the performance properties. Progress il also expected to be made in the development of two components water borne polyurethane systems with reduced VOC contents. Polyurethane powders are also finfing much use ine the decorative segment because of its excellent exterior durability. The latest development in the polyurethane chemistry i.e polyurea is also finding acceptability due to their excellent aprasion, chemical and resistance corrosion properties. Considering the various options available in the polyurethane polymer technology, it can be said that polyurethanes are the coatings of the future. Note de contenu : - High solids polyurethanes - Solvent - Free polyurethanes - Water borne Urethane systems - Acrylated Urethane Oligomers - Polyurethane powders - Polyurethanes for Plastics - Elastomeric Polyurethane Coatings - Polyurea - Non isocyanate, low VOC urethane resins - Vapour cure Coatings Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=13121 [article]

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Protection of structures by coatings / R. B. Tirodkar in PAINTINDIA, Vol. XLIX, N° 1, Su (01/1999)

[article]  inPAINTINDIA > Vol. XLIX, N° 1, Su (01/1999) . - p. 75-84 Titre : Protection of structures by coatings Type de document : texte imprimé Auteurs : R. B. Tirodkar, Auteur ; A. B. Menon, Auteur ; S. M. Naik, Auteur Année de publication : 1999 Article en page(s) : p. 75-84 Langues : Anglais (eng) Tags : 'Matériau  revêtement'  Peinture  Utilisation  Béton  Acier  Maçonnerie  'Bâtiment  résidentiel'  'Equipement  commercial'  industriel' Index. décimale : 667.9 Revêtements et enduits Résumé : All structures made of concrete, steel and masonry undergo deterioration due to various elements present in the environment. The deterioration may occur due to weathering by wind, rain, frost, snow, sunlight or by the presence of environmental pollutants. The deterioration may also be caused by chemical, photochemical or biological interactions or on account of thermal and mechanical stresses. This paper covers various aspects related to protection of various residential, commercial and industrial structures by application of coatings. The article deals with the ways and means of protecting these structures from the ravages of environment by proper coating selection, surface preparation, and inspection of coating systems. Among the industrial structures, the focus is on fertilisers, petrochemicals and other chemical industries. Note de contenu : - CAUSES OF DETERIORATION - Concrete - Structural steel - Masonry - Timber - PROTECTION OF RESIDENTIAL/COMMERCIAL STRUCTURES - Masonry - Silicone water repellent polymer - Timber - REMEDIAL/REPAIR WORK - Dampness in basement - Dampness on walls - Dampsness on ceilings and floors - Cracks - PROTECTION OF INDUSTRIAL STRUCTURES - CHEMICAL INDUSTRY - SURFACE PREPARATION - Concrete - Steel - INSPECTION - SAFETY ASPECTS Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=12923 [article]

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