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A role of hyper branched polymers in coatings / Chetan Mothgare in PAINTINDIA, Vol. LXIV, N° 5 (05/2014)  

[article]  inPAINTINDIA > Vol. LXIV, N° 5 (05/2014) . - p. 51-60 Titre : A role of hyper branched polymers in coatings Type de document : texte imprimé Auteurs : Chetan Mothgare, Auteur ; Raut Swapnil, Auteur Année de publication : 2014 Article en page(s) : p. 51-60 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Polymères ramifiés Revêtements:Peinture Index. décimale : 667.9 Revêtements et enduits Résumé : The hyper branched polymers are more attractive because of their polydispersity and the less perfect globular shape. Unlike conventional polymers, the high number of end groups and their nature participate actively in the physical properties (solubility, glass transition temperature and viscosity) in combination with the backbone structure. This characteristic is exceptional since it leads to the possibility of designing the macromolecule with the combination of many different end groups, thus defining the type of reactive chemistry, properties and applications. Hyperbranched polymers also have received much attention due to their unique chemical properties as well as their potential applications in coatings, additives, drug and gene delivery, macromolecular building blocks, nanotechnology, and supramolecular science. Hyperbranched polymers can be prepared by means of single monomer methodology (SMM) and double-monomer methodology (DMM). Too many factors have to be considered such as nature of end groups, branching density, flexibility of the repeating units, and in addition, the broad molar mass distribution can obscure specific effects. Hyper branched and dendritic polymers show low viscosities at high molecular weights. For coating applications, this should be highly interesting in terms of the environmental issues, where legislation plays an important role in the future trend towards coatings with lower VOCs than today. However, favourable viscosity is not the only property to which hyper branched polymers can contribute. The technology of hyper branched polymers is still new and largely unexplored. Numerous parameters affect physical as well as mechanical and chemical properties. Note de contenu : - HISTORY OF HYPERBRANCHED POLYMERS - SYNTHESIS AND PROPERTIES OF HYPERBRANCHED POLYMER : Structure - Dendritic growth - Perstorp technology - Polymer composition - STRUCTURE/PROPERTY RELATIONS : Physical properties - Reactivities - Chemical resistance - Thermal properties - Mechanical properties - Molecular design - APPLICATIONS : High-solids alkyds - Hyperbranched epoxies - Polyurethane dispersions - Hyperbranched acrylates - FUTURE OF HYPERBRANCHED POLYMERS En ligne : https://drive.google.com/file/d/1hLrgaPrYNCn5WFxmJpX8iMBl5mzz4qQ5/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=21761 [article]

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Eco-filler : fly ash / Tripti D. Mane in PAINTINDIA, Vol. LXIV, N° 5 (05/2014)  

[article]  inPAINTINDIA > Vol. LXIV, N° 5 (05/2014) . - p. 61-68 Titre : Eco-filler : fly ash Type de document : texte imprimé Auteurs : Tripti D. Mane, Auteur Année de publication : 2014 Article en page(s) : p. 61-68 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Cénosphères Charbon, Cendres de Charges (matériaux) Eco-produits Revêtements -- Additifs:Peinture -- Additifs Index. décimale : 667.9 Revêtements et enduits Résumé : Innovative recycling technology, transforming coal-fired power station fly ash from a waste into valuable eco-mineral fillers and extenders for industrial scale brings a great source of inorganic mineral filler. Fly ash needs to be considered as a "resource", and hence it just can't be "disposed" off but should be "utilised" fruitfully. By using this mineral filler we can cut production costs, increase margins and improve profitability, white simultaneously greening supply chain. Fly ash / Cenospheres can bring a wide range of important benefits through lover energy usage or higher loadings, or as a result of the replacement of more expensive minerals. These benefits depend on the polymer, application and materials currently being used ; whether flexible or rigid, thermoplastic or thermosetting and replaced conventional and man-made inorganic fillers and extenders such as talc, GCC, glass fibres, glass microspheres, barytes, dolomite, clay. Fundamental advantages of using fly ash as filler are being spherical ; relatively hard ; and free flowing. By beneficiation process removal of any residual surface alkali salts results in enhanced performance of fly ash filler in coatings. Note de contenu : - INTRODUCTION : Environmental effect - CLASSIFICATION AND CHEMICAL COMPOSITION - BENEFICIATION : Foth floatation - Magnetic separation - Gravity separation - PROPERTIES OF FA : Physical properties - SURFACE MODIFICATION - APPLICATION OF FA/cenospheres in paints and coatings : High PVC coatings - High solid low VOC coatings - Corrosion resistant coatings - High performance coating - Cool coatings for architectures - Heat insulating coating for metals and woods - Thermal barrier coating for high temperatures furnaces - Fire retardant coatings - Antimicrobial coatings - Conductive coatings - Camouflage paint - Water proof coatings - Latex paint for carpet backing adhesives - Plasma spray coating for Al substrate - Paint spray booth detackification - OTHER INDUSTRIAL APPLICATIONS : Ultramarine blue En ligne : https://drive.google.com/file/d/1ABUBZ0hcXHDbSU3jmun-tlm_G3ixkfWA/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=21762 [article]

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A road map to hygiene improvement indian paint industry / Amit Bhattacharya in PAINTINDIA, Vol. LXIV, N° 5 (05/2014)  

[article]  inPAINTINDIA > Vol. LXIV, N° 5 (05/2014) . - p. 69-70 Titre : A road map to hygiene improvement indian paint industry Type de document : texte imprimé Auteurs : Amit Bhattacharya, Auteur ; Chirag B. Waghela, Auteur Année de publication : 2014 Article en page(s) : p. 69-70 Langues : Anglais (eng) Catégories : Antimicrobiens Hygiène du travail Index. décimale : 613.62 Hygiène industrielle Résumé : For regular hygiene of plant, there should be hygiene manual for each processing unit or company for particular type of product. The hygiene manual should include checking, critical control, pro-active and post-active measures of all the areas from where microbial contamination may occur. By following best hygiene practices, chances for microbial contamination of the final product will be minimized at a greater extent. Note de contenu : - Areas of high susceptibility in manufacturing plants - Hygiene improvement of source water, recycled water and recycled product - Hygiene improvement in packaging area En ligne : https://drive.google.com/file/d/1j-Td3HRS8DtQT_5ROJLwlGvjRVCKoLa1/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=21763 [article]

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Novel light stabilizers for environmental friendly coatings / Yung-Chi Yang in PAINTINDIA, Vol. LXIV, N° 5 (05/2014)  

[article]  inPAINTINDIA > Vol. LXIV, N° 5 (05/2014) . - p. 72-75 Titre : Novel light stabilizers for environmental friendly coatings Type de document : texte imprimé Auteurs : Yung-Chi Yang, Auteur ; Yu-Shu Sung, Auteur ; Yin-Ting Lai, Auteur ; Shian-Fang Chiou, Auteur ; Chein Chih-Hsien, Auteur ; Yao-Hsing Huang, Auteur Année de publication : 2014 Article en page(s) : p. 72-75 Langues : Anglais (eng) Catégories : Haut extrait sec Photostabilité Revêtements en phase aqueuse:Peinture en phase aqueuse Revêtements poudre:Peinture poudre Vernis -- Séchage sous rayonnement ultraviolet Vernis en phase aqueuse Index. décimale : 667.9 Revêtements et enduits Résumé : High solids, powder, waterborne, UV curable coatings, Waterborne UV curable coatings - the green coatings -have been developed to replace conventional high VOC and solvent-based coatings. It has overcome the disadvantages of traditional solvent-based coatings. However, the green coatings still need light stabilizers to help avoid degradation from sun light and improve weather stability. Everlight Chemical Industrial Corporation (ECIC) has developed several unique products specifically for green coatings. Note de contenu : - GREEN COATINGS AND LIGHT STABILIZERS - LIGHT STABILIZERS RECOMMENDED : High-solid coatings - Powder coatings - Waterborne coatings - UV curable coatings - Waterborne UV curable coatings En ligne : https://drive.google.com/file/d/1dEYzHRw6W_DQ7qJC4LpQXz3rvM0K7O0f/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=21764 [article]

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Forms of corrosion : stress corrosion cracking - Part 13 / P. K. Kamani in PAINTINDIA, Vol. LXIV, N° 5 (05/2014)  

[article]  inPAINTINDIA > Vol. LXIV, N° 5 (05/2014) . - p. 96-103 Titre : Forms of corrosion : stress corrosion cracking - Part 13 Type de document : texte imprimé Auteurs : P. K. Kamani, Auteur Année de publication : 2014 Article en page(s) : p. 96-103 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Contraintes (mécanique) Corrosion Matériaux -- Fissuration Polymères -- Détérioration Polymères -- Synthèse Traction (mécanique) Index. décimale : 667.9 Revêtements et enduits Résumé : Stress corrosion is a form of corrosion that takes place in metal resulting from the conjoint action of stress and chemical. It is abbreviated as SCC. It is a phenomenon associated with a combination of static tensile stress, environment, and a metal metalIurgical condition which leads to component failure due to the initiation and propagation of a high aspect ratio crack. It is characterized by fine cracks (Figure-1), which lead to failure of potential components of the structure concerned. The SCC is an insidious form of corrosion ; it produces a marked loss of mechanical strength with little metal loss. The damage is not obvious to casual inspection and the stress corrosion cracks can trigger mechanical fracture and catastrophic failure of components and structures. Caustic cracking and hydrogen embrittlements are also the specific type of stress corrosion cracking. The failures are more often sudden and unpredictable which may occur after as I ittle as few months to years of previously satisfactory service. Several major disasters have involved stress corrosion cracking, including the rupture of high-pressure gas transmission pipes, the explosion of boliers, and the destruction of power stations and oil refineries. Note de contenu : - Requirements for SCC - Types of SCC : Intergranular and transgranular cracking - Stress causing sources - Effect on metals - Effect on non metals - Sites of stress corrosion cracking in a metal/alloy - Environmental and materials factors in SCC - Characteristics of SCC En ligne : https://drive.google.com/file/d/1I_WqG45oUgYnFnL5qkgUtYv85rs6wyHs/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=21765 [article]

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In the ocean of marine paints - VI / Mukund Hulyalkar in PAINTINDIA, Vol. LXIV, N° 5 (05/2014)  

[article]  inPAINTINDIA > Vol. LXIV, N° 5 (05/2014) . - p. 90 Titre : In the ocean of marine paints - VI Type de document : texte imprimé Auteurs : Mukund Hulyalkar, Auteur Année de publication : 2014 Article en page(s) : p. 90 Langues : Anglais (eng) Catégories : Formulation (Génie chimique) Haut extrait sec Marines (peinture) Revêtements antisalissures:Peinture antisalissures Index. décimale : 667.9 Revêtements et enduits Résumé : The basic formulation technique for high build coatings. a) Low viscosity high solid resin is used to get higher DFT. b) This coating is some what in between finish paint and primer. As extenders act as reinforcement giving strength to the film. c) Very powerful anti sagging agents must be used as DFT is high. En ligne : https://drive.google.com/file/d/16ya-62s8J81jmAjTYOIDsSQvXF5NGfy7/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=40372 [article]

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Mathematics in paint technology - X / Mukund Hulyalkar in PAINTINDIA, Vol. LXIV, N° 5 (05/2014)  

[article]  inPAINTINDIA > Vol. LXIV, N° 5 (05/2014) . - p. 88 Titre : Mathematics in paint technology - X : Calculations related to paint machinery Type de document : texte imprimé Auteurs : Mukund Hulyalkar, Auteur Année de publication : 2014 Article en page(s) : p. 88 Langues : Anglais (eng) Catégories : Broyeurs à billes Colorants Dispersions et suspensions Mathématiques Pâte pigmentaire Revêtements -- Appareils et matériels:Peinture -- Appareils et matériels Index. décimale : 667.6 Peintures Résumé : Attritor is a via media between Bali Mill and a Batch type Sand Mill/Bead Mill. Dispersion time is approximately 2 - 3 hours, i.e. one tenth time required by Bali Mill. This is a best machine for ail types of primers. Major wear & tear is of the fingers only and hence, maintenance cost is low. Author recommendsthis machine can be best used for making homopaste, stainers, machine colourants etc, as there is no foam generated because of low speed. Very good tentorial strength is developed which can be achieved with dispersion time and momentum of grinding media instead of using traditional machines like kneader and triple roll mills. En ligne : https://drive.google.com/file/d/1ERAjPuqFZcSVUUfftv73x-LsfCrukWVt/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=40373 [article]

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