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Enabling safer, effective crosslinking with breakthrough resin innovations / Craig Frankum in SURFACE COATINGS INTERNATIONAL, Vol. 107.4 (07-08/2024)  

[article]  inSURFACE COATINGS INTERNATIONAL > Vol. 107.4 (07-08/2024) . - p. 293-295 Titre : Enabling safer, effective crosslinking with breakthrough resin innovations Type de document : texte imprimé Auteurs : Craig Frankum, Auteur ; Ad Overbeek, Auteur ; Fred Bückmann, Auteur Année de publication : 2024 Article en page(s) : p. 293-295 Langues : Anglais (eng) Catégories : Polyéthylèneimine Réticulants Revêtements (produits chimiques):Peinture (produits chimiques) Index. décimale : 667.9 Revêtements et enduits Résumé : With consumers and painters increasingly conscious of the safety profiles of decorative coatings, manufacturers around the world are working to further deliver solutions. Covestro supports them with this task through its cutting-edge R&D, innovation support and broad toolbox of advanced resin technologies. Just one example is its polymeric aziridine crosslinker that offers lowered toxicity levels while still delivering equal performance to traditional aziridine crosslinkers. With recent studies suggesting that 25% of all indoor air pollution now comes from paint, efforts to improve the safety profile and health impact of our decorative paints and coatings are more important now than ever. In recognition of this issue, and as a player early in the coatings’ value chain, Covestro continually works to create safer paint ingredients that can keep manufacturers, applicators and consumers safe. As part of these efforts, for instance, we have worked to lower levels of volatile organic compounds (VOCs) and biocides in our resins, eliminate triethylamine and reduce the use of other tertiary amines that can contribute to strong odours, phase out N-methylpyrrolidone (NMP), and improve the film formation of our systems to reduce the need for co-solvents. We also have a dedicated innovation platform related to detox and compliance, enabling us to further phase out chemicals of concern. In this way, we ensure that our customers can develop safer coatings that future-proof their portfolios against impending legislation changes. Note de contenu : - The functional Performance challenge - NeoAdd PAX : an innovative crosslinking - Excellent secondary functional properties - All the performance, half the labelling En ligne : https://drive.google.com/file/d/11rsPr3JQOwMcRI-ItrjG4-1Y9mUwgR5f/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=41388 [article]

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Acrilem INT700 : new 1K/2K acrylic binder with superior durability and outstanding versatility for wood furniture / Marco Bianchi in SURFACE COATINGS INTERNATIONAL, Vol. 107.4 (07-08/2024)  

[article]  inSURFACE COATINGS INTERNATIONAL > Vol. 107.4 (07-08/2024) . - p. 308-309 Titre : Acrilem INT700 : new 1K/2K acrylic binder with superior durability and outstanding versatility for wood furniture Type de document : texte imprimé Auteurs : Marco Bianchi, Auteur ; Ilaria Lombardi, Auteur Année de publication : 2024 Article en page(s) : p. 308-309 Langues : Anglais (eng) Catégories : Caractérisation Formulation (Génie chimique) Liants en phase aqueuse Polyacryliques Revêtements (produits chimiques) Revêtements bi-composant Revêtements en phase aqueuse Vernis en phase aqueuse Index. décimale : 667.9 Revêtements et enduits Résumé : Climate change, increasing world population and urbanisation represent tremendous challenges for the future, and the research of sustainable solutions is of utmost importance for the coating industry. Sustainability in coatings encompasses several trends in product development like the reduction of volatile organic compounds (VOCs), minimisation of waste, use of renewable or recycled materials, improvement of process efficiencies etc. Another key aspect when addressing sustainability issues in coatings is maximising the performance of the film to assure high durability of the painted surface, which will translate into a long service life before the need for reapplication. Hence, high coating durability increases the paint’s life cycle, preventing wasteful and inefficient use of energy and material resources from start to finish. Solventborne coatings, in particular 2K polyurethane formulations, still have a large share of the wood coatings market for furniture applications thanks to their excellent resistance to mechanical stresses and chemical agents, and to their nice aesthetic finish. However, the high VOC levels of 2K polyurethane coatings is increasingly making this technology less attractive compared to waterborne solutions. On the other hand, in recent years the performance of waterborne coatings has significantly improved, closing the gap or even outpacing their solventborne counterparts in many applications. Note de contenu : - Chemical and physical characterisation of a new waterborne 1K/2K binder - Now polymer architecture combining performance and versality - Table 1 : Typical properties of Acrilem INT700 - Table 2 : Formulations for clear and pigmented paints. For 2K formulation, 10% of a water-soluble HDI polyisocyanate was added En ligne : https://drive.google.com/file/d/1uvd5jsyGGiA0bAUprmbEttae7GnhvkmB/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=41389 [article]

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New research paves the way for sustainable solvent use in the paint and coatings industry in SURFACE COATINGS INTERNATIONAL, Vol. 107.4 (07-08/2024)  

[article]  inSURFACE COATINGS INTERNATIONAL > Vol. 107.4 (07-08/2024) Titre : New research paves the way for sustainable solvent use in the paint and coatings industry Type de document : texte imprimé Année de publication : 2024 Langues : Anglais (eng) Catégories : Durée de vie (Ingénierie) Revêtements (produits chimiques) Solvants -- Aspect de l'environnement Index. décimale : 667.9 Revêtements et enduits Résumé : A collaborative team of researchers from the Paint Research Association (PRA), the Green Chemistry Centre of Excellence (GCCE) and the Department of Environment and Geography at the University of York has introduced a methodology for assessing solvent sustainability and produced a solvent sustainability guide specifically tailored for the complex paints and coatings sector. The paints and coatings industry, responsible for nearly half of global solvent use, faces increasing regulatory pressures and environmental concerns related to volatile organic compound (VOC) emissions. This new guide provides a crucial tool for balancing these environmental considerations with industrial performance requirements. En ligne : https://drive.google.com/file/d/1zSQFZeXc5h5NpJ1upQDcxaFjQDAtVd_J/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=41390 [article]

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Reusable silver conductive inks for sustainable printed electronics in SURFACE COATINGS INTERNATIONAL, Vol. 107.4 (07-08/2024)  

[article]  inSURFACE COATINGS INTERNATIONAL > Vol. 107.4 (07-08/2024) . - p. 314-35 Titre : Reusable silver conductive inks for sustainable printed electronics Type de document : texte imprimé Année de publication : 2024 Article en page(s) : p. 314-35 Langues : Anglais (eng) Catégories : Argent Conduction électrique Electronique imprimée Encre d'imprimerie Index. décimale : 667.9 Revêtements et enduits Résumé : Printed electronics is a method of producing electrical devices, such as thin film transistors, capacitors or resistors, by printing inks on various substrates (including flexible plastics). The inks are formulated from functionalised materials such as metals (often silver), carbon or semiconductors. The benefits of printed electronics are that the process is energy efficient and there is less production waste compared to conventional electronics manufacture. However, current printed electronics, despite being produced in a more sustainable way, are consigned to the same fate as conventional electronics. Note de contenu : - Figure : Proposed closed-loop circular life cycle for our innovative silver conductive inks En ligne : https://drive.google.com/file/d/1T6OdBuulhcoMB7wHc9nTLJz8cm24jsCS/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=41391 [article]

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Esasil 300° : silicone hydrophobic additive in powder form in SURFACE COATINGS INTERNATIONAL, Vol. 107.4 (07-08/2024)  

[article]  inSURFACE COATINGS INTERNATIONAL > Vol. 107.4 (07-08/2024) . - p. 329 Titre : Esasil 300° : silicone hydrophobic additive in powder form Type de document : texte imprimé Année de publication : 2024 Article en page(s) : p. 329 Langues : Anglais (eng) Catégories : Hydrophobie Matériaux cimentaires -- Additifs Poudres Silicones Les silicones, ou polysiloxanes, sont des composés inorganiques formés d'une chaine silicium-oxygène (...-Si-O-Si-O-Si-O-...) sur laquelle des groupes se fixent, sur les atomes de silicium. Certains groupes organiques peuvent être utilisés pour relier entre elles plusieurs de ces chaines (...-Si-O-...). Le type le plus courant est le poly(diméthylsiloxane) linéaire ou PDMS. Le second groupe en importance de matériaux en silicone est celui des résines de silicone, formées par des oligosiloxanes ramifiés ou en forme de cage (wiki). Index. décimale : 620.13 Matériaux de construction : pierre, ciment, béton, liants de Résumé : Substrates with a high surface energy are easy to wet by pure water, as their surface energy is similar to the surface tension of water and therefore have an affinity to water (and can absorb a lot of it). On the other hand, substrates with a low surface energy are difficult to wet by water, because the difference between the surface energy (substrate) and surface tension (water) is very high. Cement has a surface energy of 72 N/m and water has a surface tension of 73 N/m. Because cement and water have very similar surface energy/tension, cement can absorb a high proportion of water. En ligne : https://drive.google.com/file/d/1B95GFIP6om9X9gxRG6wOHweiEJVIA7WW/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=41392 [article]

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