Beyond green : a toolbox for uncompromised industrial flooring / Rob Rasing in POLYMERS PAINT COLOUR JOURNAL - PPCJ, Vol. 203, N° 4584 (05/2013)  

[article]  inPOLYMERS PAINT COLOUR JOURNAL - PPCJ > Vol. 203, N° 4584 (05/2013) . - p. 24-28 Titre : Beyond green : a toolbox for uncompromised industrial flooring Type de document : texte imprimé Auteurs : Rob Rasing, Auteur ; Jared D. Bender, Auteur Année de publication : 2013 Article en page(s) : p. 24-28 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Adhésion Epoxydes Isocyanates Matériaux cimentaires -- Revêtements protecteurs Perméabilité Polyamines Revêtements de sols industriels Revêtements en phase aqueuse:Peinture en phase aqueuse Sols -- Revêtements protecteurs Vapeur d'eau Index. décimale : 667.9 Revêtements et enduits Résumé : For decades, polymer technology has provided the civil engineering sector with high performance flooring systems. Waterborne epoxy primers are well described for delivering excellent adhesion to concrete substrates and for providing unique water vapour permeable flooring solutions. Solvent-free epoxy floorings, on the other hand, promote both increased mechanical and chemical protection to concrete substrates, allowing for enhanced durability. In the topcoat and sealer applications, 2-pack polyurethanes have built a reputation, in particular where satin finishes in combination with durability against UV light and high wear resistance, are desired. Novel flooring technologies are presented in this paper that address industry performance short-falls and demand for fast return, with reduced environmental impact. The use of high performance, rapid return epoxy primers in conjunction with aliphatic polyamine-cured isocyanate topcoats delivered to the end-user a novel combination of performance properties. Individual features such as clean air (or emission compliance) are no longer sufficient and often considered 'must-have'. The additional synergy is found when combining polymer technologies to a 'system approach' in which each technology component delivers added value to architect, applicator and end-user. A combination of broad formulation latitude ; fast property development at both ambient and low temperatures ; and high mechanical and chemical integrity are demonstrated, which result in polymer floorings with excellent properties well-suited for use in civil engineering, protective coating and structural adhesive applications. Note de contenu : - Primer application to concrete - adhesion and fast walk-on - Midcoat application - performance and longevity - Topcoat application - fine-tuning performance and ultimate aesthetics En ligne : https://drive.google.com/file/d/1JHYMdpN_foz2Rz54jSpEn6Sl_LsACkkF/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=18548 [article]

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Cleaning the air / Rob Rasing in EUROPEAN COATINGS JOURNAL (ECJ), N° 6/2011 (06/2011)  

[article]  inEUROPEAN COATINGS JOURNAL (ECJ) > N° 6/2011 (06/2011) . - p. 20-27 Titre : Cleaning the air : High-performance two-pack flooring systems offer near-zero emissions Type de document : texte imprimé Auteurs : Rob Rasing, Auteur ; Gamini A. Vedage, Auteur Année de publication : 2011 Article en page(s) : p. 20-27 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Epoxydes Parquets -- Revêtements protecteurs Revêtements -- Additifs Solvants -- Suppression ou remplacement Index. décimale : 667.9 Revêtements et enduits Résumé : Epoxy floor coatings have often utilised benzyl alcohol to assist low temperature curing. Legislation on indoor air quality now restricts its use ; but alternative formulations cure more slowly, with property compromises. A new benzyl alcohol-free curing agent gives rapid curing with emission levels far below legal requirements. Compressive strength and high temperature resistance are also improved. Note de contenu : - Elimination of benzyl alcohol impairs performance - Materials and preparation of coatings and floorings - Test equipment and procedures outlined - Chemical and mechanical resistance testing - Differences between the amines summarised - Emission levels with FA-3 are exceptionally low - Drying stages correlated to viscosity build-up - Mechanical resistance is improved - Temperature resistance is notably enhanced - All coatings offer good chemical resistance - Performance is not merely adequate, but enhanced En ligne : https://drive.google.com/file/d/1AizES1Axrz0QNLrjtMPAHt2UnjjXcIB1/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=11712 [article]

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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)  

[article]  inJOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 6, N° 3 (09/2009) . - p. 283-313 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 : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=6111 [article]

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Epoxy resins / Michael Dornbusch / Hannover [Germany] : Vincentz Network GmbH & Co. (2016)

Titre : Epoxy resins : Fundamentals and applications Type de document : texte imprimé Auteurs : Michael Dornbusch, Auteur ; Ulrich Christ, Auteur ; Rob Rasing, Auteur Editeur : Hannover [Germany] : Vincentz Network GmbH & Co. Année de publication : 2016 Collection : European Coatings Library Importance : 237 p. Présentation : ill. Format : 23 cm ISBN/ISSN/EAN : 978-3-86630-887-9 Prix : 159 E Note générale : Index - Bibliogr. Langues : Anglais (eng) Catégories : Epoxydes Revêtements:Peinture Index. décimale : 667.9 Revêtements et enduits Résumé : This book aims is acquire a solid knowledge and understanding of epoxy resins - from their historical development to how their properties are determined by their chemical structure, through to the special attributes underpinning their use as binders in various application areas. This affords a way of gaining a current overview of this important class of raw materials. Essential for any formulator of competitive modern paint systems. This book is for students and professionals wanting to broaden and deepen their knowledge and who seek key background information to assist them with the selection and use of modern epoxy resins. For those wanting not only to consider the specifics of the underlying chemistry, but also to learn about the practical uses of epoxies. This book serves as a reference on the chemistry of epoxies and their properties and on the other as a monograph on the industrial applications of epoxy resins, both with and without epoxy groups, in coatings. It presents a clear and vivid, overview of the current status of epoxy use and their combinations in various paint systems. Note de contenu : 1. INTRODUCTION : History - Applications for epoxy resins - Terms and markets 2. BASIC CHEMISTRY OF THE EPOXY GROUP : Properties and reactions of epoxy groups - Production and properties of epoxy - Key parameters of epoxy - Structure and properties of polymers based on epoxy 3. EPOXIDES IN COATINGS : Epoxy groups as crosslinked building blocks - Protective coatings - Applied flooring technology - Powder coatings - Can and coil coatings 4. TRENDS AND OUTLOOK : Legal requirements related to health, safety and environmental protection - New product developments - Potential replacement of BPA in the can coatings industry - Epoxides as building blocks for use of anthropogenic carbon dioxide for chemical syntheses - Outlook – a strong growth predicted for epoxy resins Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=30653

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