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Use of Taguchi screening techniques for gloss optimization of applicance powder coatings / Amit Amembal in PAINTINDIA, Vol. LIX, N° 2 (02/2009)
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Titre : Use of Taguchi screening techniques for gloss optimization of applicance powder coatings Type de document : texte imprimé Auteurs : Amit Amembal, Auteur Année de publication : 2009 Article en page(s) : p. 57-74 Note générale : Bibliogr. Langues : Anglais (eng) Tags : Taguchi design method Robust Powder coating Gloss Index. décimale : 667.9 Revêtements et enduits Résumé : Powder coatings are considered as the "best available control technology" for environmental and ecological balance and control in the paint and coatings industry. However, they are not popular as a choice for high aspect finishes comparable to liquid paints, due to inherent orange peel and lower gloss levels on 20 deg gloss head. The current research study uses the Taguchi design of experiments to gain an insight into the factors that are responsible for the improvement in gloss levels at 60-degree and 20-degree gloss head in powder coatings. Also, the resins chosen for the study were suitable as "fast-curing" type so that when used online, the length of the oven can be considerably reduced resulting in better energy savings for the applicator.
The Taguchi Design method, also called the Robust Design Method, greatly improves engineering productivity. Taguchi Design method helps ensure customer satisfaction. Robust Design focuses on improving the fundamental function of the product or process, thus facilitating flexible designs and concurrent engineering. The statistical too employs the methodology of signal to noise ratio and its importance in determining significant factors was demonstrated. The factors of type of polyester, type of catalyst used and amount of extender, were established to be more significant than other identified factors. Interactions between the type of catalyst used and type of polyester used were also observed, and a probe into the reason for interaction was made. The extender amount was also observed to independently affect gloss values. Indeed, it is one of the most powerfull methods available to improve quality, reduce product cost, and simultaneously reduce development interval.Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=6912
in PAINTINDIA > Vol. LIX, N° 2 (02/2009) . - p. 57-74[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 011332 - Périodique Bibliothèque principale Documentaires Disponible Development of a Water-Resistant and Detergent-Washable Powder Coated with a Stimuli-Responsive Polymer and its Application to Suncare Products / Tomo Osawa in IFSCC MAGAZINE, Vol. 12, N° 1 (01-02-03/2009)
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Titre : Development of a Water-Resistant and Detergent-Washable Powder Coated with a Stimuli-Responsive Polymer and its Application to Suncare Products Type de document : texte imprimé Auteurs : Tomo Osawa, Auteur ; Shin-Ichi Yusa, Auteur ; Isamu Kaneda, Auteur ; Shuji Nishihama, Auteur ; Masayuki Shirao, Auteur ; Atsushi Sogabe, Auteur Année de publication : 2009 Article en page(s) : p. 3-7 Note générale : Bibliogr. Langues : Anglais (eng) Tags : Detergent-washable PH-responsive polymer powder Sun care product Water-resistant Index. décimale : 668.5 Parfums et cosmétiques Résumé : It is generally well known that the surface of an inorganic UV-protective powder used in a sunscreen formula is treated with a fatty acid or other hydrophobic chemicals to obtain a high water resistance. Due to the resulting strongly hydrophobic surface, the treatment has a clear drawback in that it allows the sunscreen to leave its base components on the skin after washing with regular soap. Therefore, in this study to develop an intelligent sunscreen formula that has a high water resistance and can be washed away easily with regular soap, we focused on a pH-responsive polymer as the surface-treatment agent for a UV-protective powder. Numerous experiments led to the synthesis of the 2-acrylamido-2-methyl-1-propanesulfonic acid/11-methacrylamidoundecanoic acid (AMPS/MAU) copolymer, which is hydrophobic in acidic to neutral solution and hydrophilic in basic solution. Titanium dioxide subjected to surface treatment was treated with the AMPS/MAU copolymer showed a high pH-responsiveness that was similar to that of the polymer. A W/O-type sunscreen containing the pH-responsive titanium dioxide showed a high water resistance as well as a high washability with regular soap. Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=4771
in IFSCC MAGAZINE > Vol. 12, N° 1 (01-02-03/2009) . - p. 3-7[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 011205 - Périodique Bibliothèque principale Documentaires Disponible