Calcium aluminium silicate and magnesium aluminium silicate as a partial replacement of opacifying pigment with improved performance / Ashok Dighe in PAINTINDIA, Vol. LV, N° 6 (06/2005)

[article]  inPAINTINDIA > Vol. LV, N° 6 (06/2005) . - p. 47-58 Titre : Calcium aluminium silicate and magnesium aluminium silicate as a partial replacement of opacifying pigment with improved performance Type de document : texte imprimé Auteurs : Ashok Dighe, Auteur ; Hitesh Hirani, Auteur ; Chintan Patel, Auteur Année de publication : 2005 Article en page(s) : p. 47-58 Note générale : Bibliogr. Langues : Anglais (eng) Index. décimale : 667.9 Revêtements et enduits Résumé : Titanium Dioxide is a multifaceted material in coating applications. It efficiently scatters visible light thereby imparting whiteness, brightness and opacity to paint and coating material. The cost of TiO2 is increasingsteadily and thus the cost of paint with minimum operational margin. There are two ways to stabilize this rise in cost, one is to lower the quality of paint by less use of essential ingredients and another way is to use the subsidiary product in the replacement of the primary product either cent percent replacement or partial replacement which gives some cost advantages. This work is related to partially replacement of TiO2 pigment with calcium aluminum silicate and magnesium aluminum silicate in non aqueous and aqueous paints respectively with negligible effect on the quality of paint. The cent percent replacement of TiO2 is impossible and an attempt is made to replace it partially with cost benefit without affecting whiteness, brightness and opacity of paint. Both the extender pigments showed potential of replacing TiO2 in different type of coatings ranging from 5% to 18% by weight depending on the desired end properties. Note de contenu : - Hiding by spacing of TiO2 pigment particles - Present work - Experimental: Materials - Structural and morphological study - Methods for preparing different paint compositions - Characterisation of different properties of paints - Result & discussion : %Non volatile matter - Viscosity - Finish & grinding - Mechanical properties - Opacity - Whiteness index - Gloss - Tinting strength Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=11652 [article]

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Effective cost saving in high performance coating by replacing titanium dioxide with calcium aluminium silicate & magnesium aluminium silicate / Hitesh Hirani in PAINTINDIA, Vol. LVI, N° 10 (10/2006)

[article]  inPAINTINDIA > Vol. LVI, N° 10 (10/2006) . - p. 75-90 Titre : Effective cost saving in high performance coating by replacing titanium dioxide with calcium aluminium silicate & magnesium aluminium silicate Type de document : texte imprimé Auteurs : Hitesh Hirani, Auteur ; Ashok Dighe, Auteur ; Chintan Patel, Auteur Année de publication : 2006 Article en page(s) : p. 75-90 Note générale : Bibliogr. Langues : Anglais (eng) Index. décimale : 667.9 Revêtements et enduits Résumé : Titanium dioxide is the brightest, whitest pigment available. TiO2 is one of the most widely used pigments in paint, plastics, textiles, cosmetics, and paper industries.' It efficiently scatters visible light thereby imparting whiteness, brightness and opacity to paint and coating material. The cost of TiO2is increasing steadily and thus the cost of paint with minimum operational margin. The partial replacement of the TiO2 Pigment with the use of less expensive subsidiary product will give some cost advantage. In the present scenario high performance coatings are most widely used to preserve industrial equipment, pipelines, plant and buildings from deterioration by exposure to water, chemicals or weather which find application in automotive, industries and industrial structures, iron, steel and concrete structure, ships and marine structures, reactors, pipelines, machinery components etc. The present work emphasises on the partial replacement of TiO2pigment with Calcium Aluminum Silicate (CAS) and Magnesium Aluminum Silicate (MAS) in high performance coating application without affecting the quality of coating. Different performance coatings were prepared with partial replacement of TiO2 with CAS & MAS and analyzed for important optical properties like opacity, whiteness, Gloss and brightness. The mechanical properties were also evaluated for these coatings. The CAS & MAS fillers showed potential of replacing 5 - 30% by weight of TiO2 in different types of performance coatings. Note de contenu : - Methods for preparing different paint compositions - Characterization of different coating - Particle size & shape of CAS - Contrast ratio - Gloss - Whiteness index - Mechanical properties - Corrosion protection - Finish & grinding - Viscosity Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=11573 [article]

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A focus on electrodeposition coatings - The green technology with green future / Chintan Patel in PAINTINDIA, Vol. LVI, N° 1, Sup (01/2006)

[article]  inPAINTINDIA > Vol. LVI, N° 1, Sup (01/2006) . - p. 121-130 Titre : A focus on electrodeposition coatings - The green technology with green future Type de document : texte imprimé Auteurs : Chintan Patel, Auteur ; A. K. Dighe, Auteur Année de publication : 2006 Article en page(s) : p. 121-130 Note générale : Bibliogr. Langues : Anglais (eng) Index. décimale : 667.9 Revêtements et enduits Résumé : Compliance with today's government regulations for reducing air pollution associated with paint application relies upon use of coatings containing less organic solvent (volatile organic compounds or VOCs) as well as application methods that improve transfer efficiencies. High transfer efficiency not only helps meet environmental regulations and cut, costs but also provides a safer work place. Electrodeposition is one of the techniques which are capable to meet these requirements. In this paper attempts have been made to enlighten various aspects of this technique along with future prospects. Note de contenu : Introduction Mechanism of electrodeposition - Electrolysis - Electrophoresis - Electro-coagulation - Electro-osmosis Basic electrocoat glossary Factors affecting deposition process Advantages and limitations of electrocoating - Environmental protection and safety - Performance - Material utilization - Operational efficiency - Reduced rejects - Insurance rates History of development of electrodeposition coatings Formulation aspects of ED coatings The electrocoat process - Pretreatment - Electrodeposition tank - Post rinsing - Curing in oven Current and future trends in electrocoating Current and future applications of ED coatings Conclusion Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=11545 [article]

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Polyurethane-Acrylic (PU-AC) hybrid dispersion: the mechanism, processing and an overview / Ashish Patel in PAINTINDIA, Vol. LVI, N° 11 (11/2006)

[article]  inPAINTINDIA > Vol. LVI, N° 11 (11/2006) . - p. 63-67 Titre : Polyurethane-Acrylic (PU-AC) hybrid dispersion: the mechanism, processing and an overview Type de document : texte imprimé Auteurs : Ashish Patel, Auteur ; A. K. Dighe, Auteur ; Chintan Patel, Auteur ; Kalpesh Patel, Auteur Année de publication : 2006 Article en page(s) : p. 63-67 Note générale : Bibliogr. Langues : Anglais (eng) Index. décimale : 667.9 Revêtements et enduits Résumé : Polyurethane dispersions are widely used in coating industries but in some application areas they are bound by the cost factor although it has very goodperformance properties. In order to achieve a true price/performance balance: Polyurethane - Acrylic hybrids are appropriate. Hybridization of polyurethane -acrylics are done by various mechanisms to achieve average smaller particle size, narrower molecular weight distribution and a particulate morphology. Note de contenu : - PU-AC hybrids - Nanocomposite PUD Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=11584 [article]

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Staying apart / Hitesh Hirani in EUROPEAN COATINGS JOURNAL (ECJ), N° 3/2007 (03/2007)  

[article]  inEUROPEAN COATINGS JOURNAL (ECJ) > N° 3/2007 (03/2007) . - p. 24-31 Titre : Staying apart : TiO2 pigments can be partly replaced by calcium aluminium silicate extenders Type de document : texte imprimé Auteurs : Hitesh Hirani, Auteur ; Ashok Dighe, Auteur ; Chintan Patel, Auteur Année de publication : 2007 Article en page(s) : p. 24-31 Note générale : Bibliogr. Langues : Anglais (eng) Index. décimale : 667.9 Revêtements et enduits Résumé : Titanium dioxide - Titanium dioxide is extremely effective in imparting whiteness, brightness and opacity, but is expensive. It is shown theoretically that calcium aluminium silicate should be a particularly effective extender for TiO2, and it is confirmed experimentally that it can replace 7-20% by weight TiO2 in powder coatings without loss of opacity or whiteness. En ligne : https://drive.google.com/file/d/17xEqrABVZ222u6mhaY7JbpsKaK2_Kc27/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=8741 [article]

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Study of copolymer latexes with bimodal particle size distribution to improve stain resistance : an overview / Tejas M. Shah in PAINTINDIA, Vol. LIX, N° 5 (05/2009)

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Study of copolymer latexes with bimodal particle size distribution to improve stain resistance : an overview / Tejas M. Shah in PAINTINDIA, Vol. LIX, N° 3 (03/2009)

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