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Electron beam curable coatings and th use of vegetable oils in them : A review / Prakash A. Mahanwar in PAINTINDIA, Vol. LIX, N° 5 (05/2009)
[article]
Titre : Electron beam curable coatings and th use of vegetable oils in them : A review Type de document : texte imprimé Auteurs : Prakash A. Mahanwar, Auteur ; Merlyn Thandu, Auteur Année de publication : 2009 Article en page(s) : p. 101-112 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Huiles et graisses végétales
Nanoparticules
Revêtements -- Séchage sous rayonnement électroniqueTags : Electron beam Curing Vegetable oils Nanomaterials Index. décimale : 667.9 Revêtements et enduits Résumé : The use of high-intensity radiation (EB and UV) as an alternative to the thermal process in curing and polymerization has shown rapid growth and wide acceptance over the past few years in many industrially important technological areas. Also as coatings industries are forced to curb VOC emissions, use of renewable raw materials liki vegetable oils in coatings formulation are finding increasing applications. The general features of electron beam curing systems and their applications are reviewed. Also discussed are the use of vegetable oils in EB curable systems. Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=6682
in PAINTINDIA > Vol. LIX, N° 5 (05/2009) . - p. 101-112[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 011488 - Périodique Bibliothèque principale Documentaires Disponible Dimethyl secondary amine chain extenders : a conceptual approach to in situ generation of advanced epoxy resins for rapid-cure, low-VOC coatings / Frederick H. Walker in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 6, N° 3 (09/2009)
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Titre : Dimethyl secondary amine chain extenders : a conceptual approach to in situ generation of advanced epoxy resins for rapid-cure, low-VOC coatings Type de document : texte imprimé Auteurs : Frederick H. Walker, Auteur ; Rob Rasing, Auteur ; Gamini A. Vedage, Auteur ; Michael Cook, Auteur Année de publication : 2009 Article en page(s) : p. 283-313 Note générale : Bibliogr. Langues : Américain (ame) Tags : Poly(N-methylazetidine) Dimethyl-meta-xylylenediamine Pseudo-first-order kinetic Amine reactivity epoxy curing agent Epoxy resin coating Flexibility Crosslink density Miller-Macosko calculation Chain extender VOC Low temperature cure Environmental movement Electrochemical impedance Aine reaction mechanism Mannich base Index. décimale : 667.9 Revêtements et enduits Résumé : Advanced epoxy resin oligomers have traditionally been utilized for coatings that combine fast dry-to-touch speed and good flexibility--properties demanded in many markets such as marine and industrial maintenance coatings. Unfortunately, advanced epoxy resins require formulation with large quantities of solvent that make attainment of modern VOC regulations difficult or impossible. Coatings formulated from low molecular weight liquid epoxy resin, on the other hand, can easier meet VOC challenges, but dry slowly and tend to be brittle. This presentation explores the concept of using fast reacting, di-functional amine chain extenders to generate epoxy oligomers in situ as a means to meet these opposing property demands. Methylamine-terminated poly-(N-methylazetidine) (pNMAz, 1) is prepared in a two-step process involving the Michael addition of methylamine to acrylonitrile, followed by hydrogenation in a methylamine-containing atmosphere to yield an oligomer stream with an [M.sub.n] of about 250. Competitive pseudo-first-order kinetic measurements conducted in isopropyl alcohol indicate methyl-substituted disecondary diamines reacted approximately 3 to 3.6 times faster with phenyl glycidyl ether (PGE) than the primary amine meta-xylylenediamine (MXDA). These chain extenders can be formulated with traditional multi-functional amine crosslinkers to yield coatings with lower VOC, faster dry speed, and better flexibility compared to corresponding coatings formulated without the chain extender. DOI : 10.1007/s11998-009-9178-0 En ligne : https://link.springer.com/content/pdf/10.1007%2Fs11998-009-9178-0.pdf Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=6111
in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 6, N° 3 (09/2009) . - p. 283-313[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 011503 - Périodique Bibliothèque principale Documentaires Disponible