Process cycle time reduction of high solids alkyd using Taguchi statistical technique / G. S. Desai in PAINTINDIA, Vol. LI, N° 6 (06/2001)

[article]  inPAINTINDIA > Vol. LI, N° 6 (06/2001) . - p. 59-65 Titre : Process cycle time reduction of high solids alkyd using Taguchi statistical technique Type de document : texte imprimé Auteurs : G. S. Desai, Auteur ; V. Vijayabaskar, Auteur Année de publication : 2001 Article en page(s) : p. 59-65 Note générale : Bibliogr. Langues : Anglais (eng) Tags : 'Matériau  revêtement'  'Peinture  haute  teneur  solide'  Liant  Formulation  'Alkyde  résine'  Préparation  Durée  'Méthode  statistique' Index. décimale : 667.9 Revêtements et enduits Résumé : Taguchi Statistical Technique has been used to reduce the process cycle time of high solids-high viscosity alkyd. Monoglycerolysis (MG) catalyst, esterification catalyst, addition of free fatty acid and pre-prepared monoglyceride and antioxidant are considered as the critical factors which can affect the process cycle time. These factors are studied at different levels using the L-8 model. The statistical technique - Analysis of Variance (ANOVA) - has been used to analyse the outcome of each experiment. Anti oxidant and MG catalyst affect the colour and drying time of alkyd resin, and therefore the effect of anti-oxidant and MG catalyst has also been critically analysed through this model. Note de contenu : - Taguchi statistical technique (TST) - Experimental : Apparatus – General processing method - Results and discussion : ANOVA summary on MG time – ANOVA summary on esterification time - ANOVA summary on colour - ANOVA summary on drying - Inference Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=12592 [article]

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Simple and quick method for the molecular weight distribution studies of all acrylics and styrene-acrylic emulsion polymers / S. V. Naik in PAINTINDIA, Vol. LI, N° 1 (01/2001)

[article]  inPAINTINDIA > Vol. LI, N° 1 (01/2001) . - p. 33-38 Titre : Simple and quick method for the molecular weight distribution studies of all acrylics and styrene-acrylic emulsion polymers Type de document : texte imprimé Auteurs : S. V. Naik, Auteur ; G. S. Desai, Auteur Année de publication : 2001 Article en page(s) : p. 33-38 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Chromatographie sur gel Copolymères en émulsion Liants Mesure Poids moléculaires Polymères en émulsion Revêtements en phase aqueuse:Peinture en phase aqueuse Index. décimale : 667.9 Revêtements et enduits Résumé : In spite of growing demand for water based paints, no properly documented Size Exclusion Chromatographic method for studying molecular weight distribution of emulsion polymers is available in literature, and hence, in the light of this, a simple, quick and reproducible method has been proposed for the molecular weight determination of all acrylic and styrene acrylic emulsion polymers. The emulsion sample is dissolved in tetrahydrofuran and injected into a mixed bed column. Distributed species are detected through a high range refractive index detector and PL logical software is used to compute molecular weight distribution related data. Polystyrene standards are used to plot a calibration curve. The selection of polymer peak limits is done manually. Various experimental factors related to sample preparation and chromatographic conditions which affect reproducibility are carefully studied before arriving at the proposed method. Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=12530 [article]

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