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Hydrophobic modification of ZnO-MIO based epoxy coating for ferrous and non-ferrous substrates in PAINTINDIA, Vol. LXIX, N° 7 (07/2019)  

[article]  inPAINTINDIA > Vol. LXIX, N° 7 (07/2019) . - p. 55-66 Titre : Hydrophobic modification of ZnO-MIO based epoxy coating for ferrous and non-ferrous substrates Type de document : texte imprimé Année de publication : 2019 Article en page(s) : p. 55-66 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Anticorrosifs Anticorrosion Application directe sur le métal Epoxydes Métaux -- Revêtements protecteurs Nanoparticules Oxyde de fer micacé Oxyde de zinc Revêtement monocouche:Peinture monocouche Revêtements organiques Index. décimale : 667.9 Revêtements et enduits Résumé : Corrosion protection is a challenge to the humankind and lot of work is in progress to improve long term corrosion resistance by developing efficient coating system in a cost effective manner. Efforts on monocoat systems are getting profound interest and importance in industries over conventional primer, topcoat based two coat system or primer, high build MIO and topcoat based three coat system. Higher productivity, fast return to service, lower manpower and inventory cost make monocoat system highly desired. This research is aimed at developing a new and improved coating that employs silane modified hydrophobic nano zinc oxide coated micaceous Iron oxide as the active pigment to achieve synergistic corrosion resistant and barrier properties in a single coat that can combine the effect of primer and high build MIO coat. In the present paper synergistic effect and performances of silane modified hydrophobic nano zinc oxide coated micaceous Iron oxide were studied on different type of metalIic substrates. Note de contenu : - EXPERIMENTAL METHODOLOGY : Preparation of Nano Zinc oxide (ZnO) coated Micaceous Iron oxide (MIO) - Hydrophobic modification of nano-ZnO-MIO - Paint preparation - TEST MEDHODS : SEM &Water Vapour Permeability - Salt spray resistance test - Pull off adhesion test - Contact angle measurement - Humidity resistance and DM water resistance test - RESULTS & DISCUSSION : Summary of the results - Contact angle measurement - Water vapour permeability - Pull off adhesion testing - Cathodic disbondment - SALT SPRAY TEST RESULTS : Humidity resistance and water resistance - Fig. 1 : Cathodic disbondment (CD) - testing protocol - Fig. 2 : FESEM images of zinc oxide coated MIO - Fig. 3 : Digital photograph of the water droplet formed on the coated panels - Fig. 4 : Weight gain by the paint film in presence of water vapour - Fig. 5 : Digital photograph for pull of adhesion of the paint on the metal substrate - Fig. 6 : Photos of cathodic delamination of different trial after 90 days at 25°C - Fig. 7 : Relative disbondment radius of all the formulations - Fig. 8 : MS panels showing salt spray test after 1000 hrs - Fig. 9 : Galvanized panels showing salt spray test after 1000 hrs - Fig. 10 : Humidity resistance on unprepared galvanised substrate En ligne : https://drive.google.com/file/d/1yr3KKEv7ZkUoXxywWPVIl_6c3b-tkiXJ/view?usp=share [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=32818 [article]

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Calcined kaolin - A master tool for TiO2 reduction / Sagar Bangar in PAINTINDIA, Vol. LXIX, N° 7 (07/2019)  

[article]  inPAINTINDIA > Vol. LXIX, N° 7 (07/2019) . - p. 68-76 Titre : Calcined kaolin - A master tool for TiO2 reduction Type de document : texte imprimé Auteurs : Sagar Bangar, Auteur ; Robin Varghese, Auteur ; Gaurav Shukla, Auteur Année de publication : 2019 Article en page(s) : p. 68-76 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Chlorure de polyvinyle Dioxyde de titane Extendeurs Kaolin Revêtements:Peinture Taille des particules Index. décimale : 667.9 Revêtements et enduits Résumé : Kaolinite is a mineral belonging to the family of aluminosilicates. It is usually referred to as "China Clay" because it was first discovered at Kao-Ling, in China. The term kaolin is generally used fora set of common clay minerals having significant amount of kaolinite. Of specific commercial interest is the degree of crystallinity of Kaolin that controls the key film property that is brightness, whiteness, opacity, gloss, film strength. Kaolins whiteness and laminar nature makes it extremely suitable for its broad use in coating industry as an extender. In its hydrous or calcined forms, kaolin is capable of improving the optical, mechanical and rheological properties of a paint. These are widely used in range of PVC paints whether it's glossy, satin or matt paint. They deliver mainly three properties that is increased opacity, whiteness and scrub resistance. In a time when coating manufactures are keen to reduce the TiO2 cost burden, optimization without compromising the performance is a greater challenge, and Kaolin offers an optimum solution. This paper describes various possibilities and some commercial aspects which Kaolin can create for both TiO2 optimization as well as performance enhancement. Note de contenu : - FUNDAMENTAL REASONS FOR KAOLIN SUPPORTING OPTICAL PERFORMANCE : High PVC paints - Low/mid PVC paints - Kaolin vs other extenders - Materials used - Characterization - EXPERIMENTATION : EXPLORATION STUDIES OF KAOLIN IN DIFFERENT RANGE OF PRODUCTS - CHARACTERIZATION OF FINER & BRIGHTER KAOLIN VS OTHER EXTENDRES : Experiments in medium PVC interior and exterior formulation - RESULTS AND DISCUSSIONS : Results of experiments - Figure : Kaolin structure - Table 1 : Typical properties of kaolin En ligne : https://drive.google.com/file/d/147sL3zneR605THhKkGMpy4OeFVjJxFdL/view?usp=share [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=32819 [article]

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Manufacturing guidelines of bases / M. Veeramani in PAINTINDIA, Vol. LXIX, N° 7 (07/2019)  

[article]  inPAINTINDIA > Vol. LXIX, N° 7 (07/2019) . - p. 88-90 Titre : Manufacturing guidelines of bases Type de document : texte imprimé Auteurs : M. Veeramani, Auteur Année de publication : 2019 Article en page(s) : p. 88-90 Langues : Anglais (eng) Catégories : Bases à teinter Procédés de fabrication Revêtements en phase aqueuse:Peinture en phase aqueuse Index. décimale : 667.9 Revêtements et enduits Résumé : Now let us turn our attention to the manufacture of bases and the precautions one has to take during the process. It is very essential that Bases so manufactured should have almost the same property in all the batches or else the tinted bases will show shade variation from batch to batch. This is not at all desirable as it will create a chaos in the market. Such variations will not be accepted by the dealers and Painters/applicators as shade variation in one wall will spoil the aesthetic appeal and will lead to customer rejection. The manufacturer may lose h is creditability and good will. In order to avoid this there are quite few precautions which are to be observed so that bases manufactured are without any variation, post tinting. The following broad precautions can be listed. Note de contenu : - Manufacture of bases - Drawdown cards for bases - an important En ligne : https://drive.google.com/file/d/1QtJZ0BYj6UUyihJPAOWLawnfWEiF9uRc/view?usp=share [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=32820 [article]

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Commercially available organic pigments - V / Mukund Hulyalkar in PAINTINDIA, Vol. LXIX, N° 7 (07/2019)  

[article]  inPAINTINDIA > Vol. LXIX, N° 7 (07/2019) . - p. 98 Titre : Commercially available organic pigments - V Type de document : texte imprimé Auteurs : Mukund Hulyalkar, Auteur Année de publication : 2019 Article en page(s) : p. 98 Langues : Anglais (eng) Catégories : Pigments organiques Produits commerciaux Index. décimale : 667.2 Colorants et pigments En ligne : https://drive.google.com/file/d/1fYUT63HKhzjh2NOxabc2W8Vah36fTTLv/view?usp=share [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=32821 [article]

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Enamel shades - 3 / Mukund Hulyalkar in PAINTINDIA, Vol. LXIX, N° 7 (07/2019)  

[article]  inPAINTINDIA > Vol. LXIX, N° 7 (07/2019) . - p. 100-102 Titre : Enamel shades - 3 Type de document : texte imprimé Auteurs : Mukund Hulyalkar, Auteur Année de publication : 2019 Article en page(s) : p. 100-102 Langues : Anglais (eng) Catégories : Formulation (Génie chimique) Revêtement émail:Peinture-émail Index. décimale : 667.9 Revêtements et enduits Résumé : In last issue we have given combinations of pigments for first and second quality enamel, now we are giving combinations of pigments for third quality enamels. En ligne : https://drive.google.com/file/d/1XMLLLAyQowg8q8lWWkpga97yUsR8mfFi/view?usp=share [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=32822 [article]

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