Acrylic resins / Ulrich Poth / Hannover [Germany] : Vincentz Network GmbH & Co. (2011)

Titre : Acrylic resins Type de document : texte imprimé Auteurs : Ulrich Poth, Auteur ; Reinhold Schwalm, Auteur ; Manfred Schwartz, Auteur Editeur : Hannover [Germany] : Vincentz Network GmbH & Co. Année de publication : 2011 Collection : European Coatings Tech Files Importance : 383 p. Présentation : ill. Format : 23 cm ISBN/ISSN/EAN : 978-3-86630-857-2 Prix : 159 E Note générale : Index - Bibliogr. Langues : Anglais (eng) Catégories : Polyacryliques Revêtements:Peinture Index. décimale : 667.9 Revêtements et enduits Résumé : Acrylic polymers are essentiel products for various industrial application fields. Particularly, they play important roles as binders (acrylic resins), dispersion resins and polymer thickeners in the coatings industry. Since acrylic resins were launched onto the coatings market, they have distinguished themselves by meeting various quality requirements and replacing other resins. Acrylic resins are used in eco-friendly coating systems, for example. Thanks to their broad range of properties and to ongoing developments within this product class, they also serve as ingredients for different coating systems. The present book presents an overview of the production, properties and application of acrylic resins and their distinctive features. It covers acrylic resins prepared by solution polymerization and emulsion polymerization, as well as reactive acrylic resins which form films by radiation curing. Besides a general description of these three product classes, there are chapters dealing with particular properties for the diverse application fields. The goal of the book is to convey the latest knowledge about acrylic resins in solvent-borne and water-borne systems, and for radiation curing in an understandable and descriptive manner. Given the breadth of applications for acrylic resins, the book discusses the different chemical and physical aspects of the production methods and the related application properties. There are numerous literature citations for further reading on specific issues. The book is aimed at students and newcomers to the field of coatings technology, and also at well-versed experts in coatings applications and other related industries. The essential background information herein will underpin decisions concerning the choice and use of acrylic resins. Note de contenu : - General composition and structure - Solution polymerization products - Primary dispersions of acrylic resins - Acrylate resins for radiation curable coatings Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=16676

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Graphic optimisation / Reinhold Schwalm in EUROPEAN COATINGS JOURNAL (ECJ), N° 02/2008 (02/2008)  

[article]  inEUROPEAN COATINGS JOURNAL (ECJ) > N° 02/2008 (02/2008) . - p. 26-30 Titre : Graphic optimisation : The use of PTE (performance temperature energy) diagrams in the process design of high UV coatings Type de document : texte imprimé Auteurs : Reinhold Schwalm, Auteur ; Nick Gruber, Auteur ; Wolfgang Schrof, Auteur Année de publication : 2008 Article en page(s) : p. 26-30 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Revêtements -- Séchage sous rayonnement ultraviolet Transition vitreuse Index. décimale : 667.9 Revêtements et enduits Résumé : UV curing is accompanied by a fast increase of the glass transition temperature (g). In coatings designed to yield Tgs well above RT, curing leads to vitrification and therefore limited cure conversion. The performance level obtained is then highly dependent on the cure conditions. PTE diagrams (PTE = performance temperature energy) are well suited to define a stable process design and process window. The methodology has also been used to estimate the phase transitions (from gel to glass) occurring in UV cured coatings, an approach similar to the TTT (time-temperature-transition) Gilham-diagrams for thermally cured systems. En ligne : https://drive.google.com/file/d/1t6AqrhzLpeNTYq993DnQXnEpIdzT82aj/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=2423 [article]

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How to speed up the UV curing of water-based acrylic coatings / C. Decker in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 1, N° 2 (04/2004)  

[article]  inJOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 1, N° 2 (04/2004) . - p. 127-136 Titre : How to speed up the UV curing of water-based acrylic coatings Type de document : texte imprimé Auteurs : C. Decker, Auteur ; Reinhold Schwalm, Auteur ; F. Masson, Auteur Année de publication : 2004 Article en page(s) : p. 127-136 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Cinétique chimique Copolymère uréthane acrylate Photoamorceurs (chimie) Revêtements -- Séchage sous rayonnement électronique Revêtements -- Séchage sous rayonnement ultraviolet Revêtements en phase aqueuse Index. décimale : 667.9 Revêtements et enduits Résumé : Water-based polyurethane-acrylate (PUA) coatings have been cured, after drying, by a short exposure to UV radiation in the presence of a radical-type photoinitiator. The light induced polymerization has been followed quantitatively by means of real-time infrared spectroscopy, by monitoring continuously the disappearance of the acrylate double bonds. The UV curing of the dry film was markedly accelerated by adding to the PUA formulation a reactive plasticizer (diacrylate monomer), by operating in a humid atmosphere or by raising the temperature. The neutralizer of the carboxylic groups, needed to get a stable dispersion, plays a key role in both the polymerization kinetics and in the hydrophilic character of the UV-cured polymer, the best performance being achieved by using a volatile tertiary amine. Water-based UV-cured PUA coatings combine hardness and flexibility and are, therefore, quite resistant to abrasion and scratching. DOI : 10.1007/s11998-004-0007-1 En ligne : https://link.springer.com/content/pdf/10.1007%2Fs11998-004-0007-1.pdf Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=3958 [article]

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