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In-situ phosphphatizing coatings (ISPC) : 'A green option' / Amit Amembal in PAINTINDIA, Vol. LVI, N° 12 (12/2006)

[article]  inPAINTINDIA > Vol. LVI, N° 12 (12/2006) . - p. 65-78 Titre : In-situ phosphphatizing coatings (ISPC) : 'A green option' Type de document : texte imprimé Auteurs : Amit Amembal, Auteur Année de publication : 2006 Article en page(s) : p. 65-78 Note générale : Bibliogr. Langues : Anglais (eng) Index. décimale : 667.9 Revêtements et enduits Résumé : This paper reviews a novel one-step coating process that uses chemical bonding to enhance paint adhesion to metal surfaces and inhibit substrate corrosion. The in-situ phosphatizing coating (ISPC) process eliminates the need for potentially toxic pretreatment baths and other high-waste procedures that are found in traditional pretreatment methods. The ISPC technique combines surface pre-treatment and primer/topcoat in one-step finish that eliminates the health, safety, and waste disposal concerns of current metals-coating technology. Chemistry, adhesion mechanism, typical formulae, the processing, application, advantages, disadvantages and testing of ISPCs are discussed. Some examples of work conducted on performance testing are also described. Vast savings accrued from elimination of wastewater treatment, chemicals, labor, and steam, electricity from conventional phosphatizing processes are the significant highlights of this technology. In addition to this, the environmental protection is also achieved. Note de contenu : - Developments in phosphatizing - In-situ Phosphatizing Coating (ISPC) - Introduction - In-situ Phosphatizing Coating (ISPC) chemistry - Adhesion mechanism of ISPC - Discussion of typical ISPC formulae - Processing related aspects of ISPC - Application related features of in-situ phosphatizing coatings - Testing of ISPC - Some examples of ISPC systemes performance Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=11595 [article]

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Renewable materials in surface coatings / Syed Haseebuddin in PAINTINDIA, Vol. LVI, N° 12 (12/2006)

[article]  inPAINTINDIA > Vol. LVI, N° 12 (12/2006) . - p. 81-86 Titre : Renewable materials in surface coatings Type de document : texte imprimé Auteurs : Syed Haseebuddin, Auteur ; Nitin V. Patil, Auteur Année de publication : 2006 Article en page(s) : p. 81-86 Note générale : Bibliogr. Langues : Anglais (eng) Tags : 'Renewable  resources'  'Mahua  Oil'  'Vernonia  'Lesquerella  Inulin  Sucrose  Isosorbide  Enzyme  'Procine  Pancreatic  Lipase'  'Candida  cylindracaea'  'Bio-mimetic  catalyst'  'Iron-ascorbic  palmitate' Index. décimale : 667.9 Revêtements et enduits Résumé : Maturing of conventional technologies, depletion in petroleum based resources and their long-term effect on environment is driving scientists to seek new paradigms based on biological concepts and renewable materials. This study discusses the possible potential uses of natural resources in surface coatings. Novel raw materials such as oils (Mahua, Vernonia, Lesquerella etc), polyols (Inulin and sucrose), additives (Isosorbide), enzymes (Procine Pancreatic Lipase and Candida cylindracaea, Lipozyme), bio-mimetic catalysts (Iron-ascorbic acid palmitate) etc have been suggested for use in coatings. All these raw materials are from undepletable renewable resources, which are increasingly desirable in coatings technology. Note de contenu : - Renewable raw materials as binder (resin) constituents : Natural oils - Polyols - Renewable materials as Bio-mimetic Drier (Catalyst): Iron-ascorbic acid palmitate - Enzyme as catalyst - Renewable materials for multiple uses: Corn derivatives Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=11596 [article]

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Electron beam curing of epoxy acrylate onto wood surfaces / Virendra Kumar in PAINTINDIA, Vol. LVI, N° 12 (12/2006)

[article]  inPAINTINDIA > Vol. LVI, N° 12 (12/2006) . - p. 87-94 Titre : Electron beam curing of epoxy acrylate onto wood surfaces : Effect of reactive diluent on coating properties Type de document : texte imprimé Auteurs : Virendra Kumar, Auteur ; Y. K. Bhardwaj, Auteur ; Niteen G. Jadhav, Auteur ; N. K. Goel, Auteur ; K. S. S. Sarma, Auteur ; K. A. Dubey, Auteur ; C. V. Chaudhari, Auteur ; S. Sabharwal, Auteur Année de publication : 2006 Article en page(s) : p. 87-94 Note générale : Bibliogr. Langues : Anglais (eng) Index. décimale : 667.9 Revêtements et enduits Résumé : The electron beam curing of commercial grade epoxy acrylate (Bisphenol A diglycidyl ether diacrylate) on wood surfaces to provide high performance protective and decorative coating is discussed in the paper Effect multifunctional reactive diluent monomers namely, /, 6-Hexane dioldiacrylate (HDDA), Dipropylene glycoldiacrylate (OPGDA) and Tripropylene glycoldiacrylate (TPGDA) on the performance characteristics of coating such as. abrasion resistance, scratch resistance, gloss at 60° angle, pencil hardness, pendulum hardness, impact resistance, chemical resistance, stain resistance, steam resistance and cigarette burn resistance has been investigated. Results of the study show that presence of reactive diluents improved abrasion resistance, hardness, chemical resistance property and ease of application by lowering the viscosity of the coating. However, higher diluent content resulted in micro-distortions on the coating surfaces and induced brittleness that adversely affected gloss and scratch resistance of the coating. EB cured wood surfaces exhibited excellent stains and steam resistance properties. Note de contenu : - Experimental : Materials - Electron beam curing of epoxy acrylate resin - Performance tests of cured wood panels - Results and discussions: Abrasion resistance - Scratch resistance - Gloss at 60° angle - Tubular impact resistance - Pencil hardness - Pendulum hardness - Cigarette burn resistance - Chemical resistance - Steam resistance - Stain resistance Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=11597 [article]

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The basics of pigment dispersion / Gururaj Moharir in PAINTINDIA, Vol. LVI, N° 12 (12/2006)

[article]  inPAINTINDIA > Vol. LVI, N° 12 (12/2006) . - p. 95-97 Titre : The basics of pigment dispersion Type de document : texte imprimé Auteurs : Gururaj Moharir, Auteur Année de publication : 2006 Article en page(s) : p. 95-97 Langues : Anglais (eng) Index. décimale : 667.9 Revêtements et enduits Note de contenu : - What is "Good Dispersion" ? - How is the quality of a dispersion determined: Grindometer - Electron microscope - Measurement of Tinting Strength - What are the factors, which influence the quality of a dispersion?: The pigment - The binder - The dispersion units - What practical solutions are available ? Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=11598 [article]

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