Greener defences / Christian Piechocki in EUROPEAN COATINGS JOURNAL (ECJ), N° 7-8 (07-08/2015)  

[article]  inEUROPEAN COATINGS JOURNAL (ECJ) > N° 7-8 (07-08/2015) . - p. 34-38 Titre : Greener defences : Low viscosity epoxy resin creates ultra-high solids protective coatings Type de document : texte imprimé Auteurs : Christian Piechocki, Auteur ; Kiran K. Baikerikar, Auteur ; Ray Drumright, Auteur Année de publication : 2015 Article en page(s) : p. 34-38 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Anticorrosion Epoxydes Essais dynamiques Haut extrait sec Marines (peinture) Revêtements protecteurs Vaporisateurs Viscosité Index. décimale : 667.9 Revêtements et enduits Résumé : Solvent-borne epoxy coatings dominate the marine, petrochemical and infrastructure protective coatings markets. However, current lower VOC epoxy formulations may have high viscosity, poor spray application and reduced corrosion resistance. A novel low viscosity epoxy can provide ultra-high solids coatings with improved sprayability and excellent corrosion resistance. The global marine and protective formulated coating market in 2010 was valued at US$ 12 billion [1]. This market is dominated by the use of epoxy resin systems with a 60 % market share due to the inherent need for corrosion resistance and durability. Polyurethanes, in second place, hold only a 14 % market share. However, there is still a need for new materials to address the limitations of epoxies. For example, standard epoxy resins are very viscous (or solid) and therefore require a significant amount of organic solvent to achieve sprayable paint viscosities and facilitate application onto substrates. Note de contenu : - Coating formulation and preparation - Application and viscosity testing - Curing and physical properties - Chemical and corrosion resistance tests - Low viscosity facilitates low-temperature application - Resolving the viscosity/performance conflict - Good corrosion resistance in salt spray tests - Airless spray gives good quality application - Low VOC coatings with high VOC performance En ligne : https://drive.google.com/file/d/1AEEZT-3qdUDifD_9MmujZRD1K3K9WIGC/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=24445 [article]

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Synthesis of ADI/HDI hybrid isocyanurate and its application in polyurethane coating / Guiyou Wang in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 12, N° 3 (05/2015)  

[article]  inJOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 12, N° 3 (05/2015) . - p. 543-553 Titre : Synthesis of ADI/HDI hybrid isocyanurate and its application in polyurethane coating Type de document : texte imprimé Auteurs : Guiyou Wang, Auteur ; Kang Li, Auteur ; Wei Zou, Auteur ; Aiguo Hu, Auteur ; Chunpu Hu, Auteur ; Yangping Zhu, Auteur ; Chen Chen, Auteur ; Glynn Guo, Auteur ; Aaron Yang, Auteur ; Ray Drumright, Auteur ; John Argyropoulos, Auteur Année de publication : 2015 Article en page(s) : p. 543-553 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Bis(isocyanatométhyl)cyclohexane Caractérisation Catalyse Diisocyanate d'hexaméthylène Isocyanurates Polyuréthanes Revêtements:Peinture Index. décimale : 667.9 Revêtements et enduits Résumé : Hybrid isocyanurate was prepared by solvent-free trimerization of hexamethylene diisocyanate (HDI) and bis(isocyanatomethyl) cyclohexane (ADI), and characterized by gel permeation chromatography (GPC), gas chromatography (GC), nuclear magnetic resonance (NMR), and electrospray ionization mass spectrometry (ESI–MS). The results showed that ADI/HDI hybrid isocyanurate could be prepared with 2-hydroxypropyl-trimethyl-azanium catalyst at reaction temperatures between 50°C and 70°C. Both the GC and 1H NMR analyses identified a favorable linear relationship between the feed ratio of the starting monomers and the amount of each individual isocyanate incorporated into the oligomer (reaction ratio). Compared to coatings prepared from the mixture of ADI isocyanurate and HDI isocyanurate, the coatings from ADI/HDI hybrid isocyanurate possess higher distinctness of image. Note de contenu : - EXPERIMENTAL : Materials - Synthesis of ADI/HDI hybrid isocyanurate - Preparation of two-component polyurethand coatings - Characterization and evaluation - RESULTS AND DISCUSSION : GPC analysis and results - GC analysis and results - H NMR analysis and results - ESI-MS analysis and results - Appearance of polyurethane coatings based on ADI/HDI hybrid isocyanurate DOI : 10.1007/s11998-014-9650-3 En ligne : https://link.springer.com/content/pdf/10.1007%2Fs11998-014-9650-3.pdf Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=24178 [article]

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