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Coil coating - The complete coating process / Terry Goodwin in SURFACE COATINGS INTERNATIONAL, Vol. 105.4 (07-08/2022)  

[article]  inSURFACE COATINGS INTERNATIONAL > Vol. 105.4 (07-08/2022) . - p. 300-304 Titre : Coil coating - The complete coating process Type de document : texte imprimé Auteurs : Terry Goodwin, Auteur Année de publication : 2022 Article en page(s) : p. 300-304 Langues : Anglais (eng) Catégories : Coil coatings Index. décimale : 667.9 Revêtements et enduits Résumé : The coil coating industry uses the successful combination of complex and modern paint systems together with an integrated manufacturing process to create products with outstanding durability and surface appearance. Coil coating is the most efficient means of coating metal with a protective organic coating. It is a continuous, high-volume process that produces a more consistent product compared to batch post-coating methods. The coil coating process is one of the best kept secrets in the coatings industry, yet prepainted metal products are used extensively in industries as varied as building and construction, consumer products, automotives, transportation, furniture, lighting and consumer packaging. The European coil coating industry uses around 200,000 tonnes of paint each year and produces over 1.2 billion square metres of prepainted metal (equivalent to 150,000 football pitches). It is a global industry and Europe is recognised as the leader in both product innovation and sustainability. This success is based on stringent process control at all stages of the manufacturing process and the use of the latest innovative technologies for pretreating and coating the metal substrate. Note de contenu : - Coil coating process - Coil coated (or prepainted metal) products - Cleaning - Rinsing - Pretreatment - Conversion coatings - Pretreatment systems - Conventional rinsed pretreatments - No-rinse pretreatments - Painting - The future - Fig. 1 : Schematic of coil coating line - Fig. 2 : Cross-section of prepainted metal product - Fig. 3 : Applications of prepainted metal - Table 1 : Typical rinsed pretreatment - Table 2 : Typical no-rinse (dry-in-place) pretreatment En ligne : https://drive.google.com/file/d/1kJrUuSCiqb9LL41AKjHTDqFBnKVnvFJJ/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=37921 [article]

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From sustainable raw materials to sustainable recycling in furniture / Ana Babic in SURFACE COATINGS INTERNATIONAL, Vol. 105.4 (07-08/2022)  

[article]  inSURFACE COATINGS INTERNATIONAL > Vol. 105.4 (07-08/2022) . - p. 308-311 Titre : From sustainable raw materials to sustainable recycling in furniture Type de document : texte imprimé Auteurs : Ana Babic, Auteur ; Catherine Rosenfeld, Auteur ; Mikael Muegge, Auteur Année de publication : 2022 Article en page(s) : p. 308-311 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Biomatériaux Bois Formulation (Génie chimique) Glucides Liants Panneaux de fibres Panneaux de particules Résistance au cisaillement Index. décimale : 667.9 Revêtements et enduits Résumé : SUSBIND (or SUStainable bio-BINDers for furniture) is a collaborative European research & innovation project addressing the need for more sustainable biobased binders used for wood-based panel boards in the European furniture industry. The aim of the SUSBIND project's highly sustainable biobased binders is to replace the conventional fossil-based binders currently used for wood-based panel boards in mass furniture products. By substituting fossil-based chemicals with those from renewable resources, the carbon footprint of furniture products will be reduced. "The expertise brought together under the SUSBIND project will finally see development of a biobased binder able to compete on an industrial scale. As we become increasingly demanding of green production methods in all areas, SUSBIND will provide Europe with a competitive advantage," said the Scientific Co-ordinator of Cargill, Massimo Bregola. As the climate changes, the furniture of the future will have to be sustainable, multi-functional and efficient, and today's designers and manufacturers are already starting to explore these areas, paving the way for future developments.The wood board industry already having the circular economy in mind, currently relies on the use of mainly fossil-based binders, largely formaldehyde-based binders. Several initiatives are underway to produce alternative binders from renewable resources, but a biobased binder is not yet available on an industrial scale. Note de contenu : - The SUSBIND project - Carbohydrates as a green raw material for reactive intermediates - Adhesive development and in-situ production process - Lab-scale adhesive testing - Evaluation of technological performance of wood-based boards - A way forward - Fig. 1 : Technological evaluation of particle boards boards made with SUSBIND aDHesive compared to Literature values - Fig. 2 : Acid dehydration of fructose to hydroxymethylfurfural (HMF), which can be rehydrated to levulinic and formic acid - Fig. 3 : SUSBIND adhesives are produced in an in-situ process consisting of an adhesive precursor synthesis and sub-sequent adhesive production - Fig. 4 : Tensile shear strength development of different SUSBIND adhesive formulations, measured after hot-pressing at 120°C - Fig. 5 : Prototype "SUSKET" made by IKEA of Sweden at SUSBIND conference En ligne : https://drive.google.com/file/d/1NIMzlx0DilR7SuyD4Sh2BxvCuNc3z2r1/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=37922 [article]

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Exploring the use of bio-derived, isosorbide-based polyols in the synthesis of high-performance polyurethanes / Jiae Kim in SURFACE COATINGS INTERNATIONAL, Vol. 105.4 (07-08/2022)  

[article]  inSURFACE COATINGS INTERNATIONAL > Vol. 105.4 (07-08/2022) . - p. 312-313 Titre : Exploring the use of bio-derived, isosorbide-based polyols in the synthesis of high-performance polyurethanes Type de document : texte imprimé Auteurs : Jiae Kim, Auteur Année de publication : 2022 Article en page(s) : p. 312-313 Langues : Anglais (eng) Catégories : Biomatériaux Essais de résilience Isosorbide L’isosorbide est un composé hétérocyclique obtenu à partir de la double réaction de déshydratation du sorbitol, lui-même issu de la réaction d’hydrogénation du glucose. L’isosorbide est un diol issu des agro-ressources, non toxique, biodégradable et stable thermiquement. L’isosorbide est un monomère qui peut être inséré dans des chaînes macromoléculaires de type polymères (polycarbonates, polyuréthanes, polyesters…). Il est également utilisé pour la synthèse de dérivés tels que les diesters, diéthers, dinitrates… L’isosorbide est considéré comme synthon donnant accès à une nouvelle plateforme chimique d’intérêt puisqu’il est issu du végétal et permet d’obtenir de nombreux dérivés aux propriétés égales voire supérieures à leurs homologues de la pétrochimie. Polyols Polyuréthanes Résistance chimique Ressources renouvelables Revêtements -- Propriétés mécaniques Revêtements bi-composant Revêtements organiques Index. décimale : 667.9 Revêtements et enduits Résumé : Polyurethanes (PUs) are an extremely flexible and widely used class of industrial polymers. Typically made by reacting polyols with diisocyanates, PU chemistry has inherent versatility through the wide range of both types of monomers available for use, but as with most polymers, these are mostly derived from fossil fuel-based building blocks. Those working at the forefront of PU chemistry are now transitioning to a palette of bio-derived alternatives to enable society's continuing use of these valuable materials and simultaneously access new performance profiles. Note de contenu : - Creating new polyols for PU synthesis - Case study : Improving the abrasion resistance, impact resistance and adhesion of two-component PU coatings - Fig. 1 : Manufacture of isosorbide from renewable, plant-based feedstocks - Fig. 2 : Renewable plant-based sources of succinic acid and isosorbide have an important role to play in the 'greening' of polyurethane chemistry - Fig. 3 : Chemical resistance test results for 2K PU coatings formulated with Avio 2426 confirm enhanced performance relative to a commercial polyester diol alternative against caustic and Skydrol En ligne : https://drive.google.com/file/d/1OKUsUYax1Pk5aEsoi4jNLyA27WGf0Cmu/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=37923 [article]

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