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Co-blending phosphate inhibitors for sustainable, low-cost corrosion control / Ella Newington in SURFACE COATINGS INTERNATIONAL, Vol. 106.4 (07-08/2023)  

[article]  inSURFACE COATINGS INTERNATIONAL > Vol. 106.4 (07-08/2023) . - p. 260-264 Titre : Co-blending phosphate inhibitors for sustainable, low-cost corrosion control Type de document : texte imprimé Auteurs : Ella Newington, Auteur Année de publication : 2023 Article en page(s) : p. 260-264 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Anticorrosifs Coût -- Contrôle Essais de brouillard salin Mélanges (chimie) Métaux -- Revêtements protecteurs Phosphates Index. décimale : 667.9 Revêtements et enduits Résumé : As professionals working within the coatings industry, we are all acutely aware of the issues that corrosion poses and want to provide our customers and end-users with the best quality products to tackle this $2.2 trillion global issue. Anticorrosion coatings have become a necessity for industries to safeguard the huge investments they make in terms of money, property and safety of workers. Whether coating to protect pipelines, aeroplanes or computer gadgets – customers are united in their battle against corrosion ! Historically, some of the most effective corrosion inhibitors have been based on chromium. However, these chemistries are currently being phased out globally – leaving a gap in the market for a highly effective inhibitor that is non-toxic and non-carcinogenic. Following strong R&D efforts and extended testing, many coatings companies have turned to phosphate-based systems. This article highlights a step-change alternative that can save up to 30 % on the cost of anticorrosives as well as offering customers more sustainable coatings that require no hazard warning label. Note de contenu : - Why phosphates are popular - The benefits of using a phosphate/Intelli-ion 'co-blend' - Corrosion study using a phosphate/Intelli-ion 'co-blend' - Salt spray testing - Real-world live testing En ligne : https://drive.google.com/file/d/1BH6S7oGHV0sY4rrmn3tNB2b_rzlivhOf/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=39814 [article]

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Adding future - 100% solid NiSAT-based rheology for sustainable manufacturing of architectural paints in SURFACE COATINGS INTERNATIONAL, Vol. 106.4 (07-08/2023)  

[article]  inSURFACE COATINGS INTERNATIONAL > Vol. 106.4 (07-08/2023) . - p. 274-277 Titre : Adding future - 100% solid NiSAT-based rheology for sustainable manufacturing of architectural paints Type de document : texte imprimé Année de publication : 2023 Article en page(s) : p. 274-277 Langues : Anglais (eng) Catégories : Epaississants Produits commerciaux Revêtements (produits chimiques):Peinture (produits chimiques) Revêtements en bâtiment:Peinture en bâtiment Revêtements en phase aqueuse -- Additifs:Peinture en phase aqueuse -- Additifs Rhéologie Index. décimale : 667.9 Revêtements et enduits Résumé : Associatively acting thickeners are standard in the formulation of modern aqueous systems, such as paints and coatings, adhesives, etc. These are either the hydrophobic-modified acrylic thickeners, often called HASE, or the NiSAT group of products. The term NiSAT, which is often used for this class of associative thickeners, refers to 'NonIonic Synthetic Associative Thickeners'. The HASE product group comprises ionic (mainly anionic) thickeners, which require proper pH adjustment for activation. This product group utilises two mechanisms : water thickening and associative. The NiSAT product group, as mentioned, are already nonionic and in principle can be used over the widest range of pH values. These products represent an advanced product technology and are designed to give superior rheological characteristics so that many formulation requirements can be met. Depending on the product chosen, good levelling, spatter resistance, film build and flow characteristics can be achieved. The appearance of classic syneresis can even be minimised. Furthermore, NiSAT products do not need special activation, so the majority of them can be added to the letdown or even at the end of processing. This product class does not adversely affect the corrosion or water sensitivity of the resulting system, and other secondary parameters, such as gloss, will not be negatively influenced. Note de contenu : - Chemistry - Sustainability - Flexible use- Incorporation - Technical details - efficiency - Film properties - APPENDIX : TEST METHODS : Rheology data - KU viscosity- Brush-out levelling - Blocking resistance - Colour acceptance En ligne : https://drive.google.com/file/d/1iXzMMmlWAMeW2bQmxzWZWBPAKiF8ZB5x/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=39815 [article]

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Development of topcoat formulations to extend the open time of waterborne coatings / Wouter M. J. Kloosterman in SURFACE COATINGS INTERNATIONAL, Vol. 106.4 (07-08/2023)  

[article]  inSURFACE COATINGS INTERNATIONAL > Vol. 106.4 (07-08/2023) . - p. 280-284 Titre : Development of topcoat formulations to extend the open time of waterborne coatings Type de document : texte imprimé Auteurs : Wouter M. J. Kloosterman, Auteur ; Ankie P. M. van Gorkum, Auteur ; Dirk Mestach, Auteur Année de publication : 2023 Article en page(s) : p. 280-284 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Blanc (couleur) Formulation (Génie chimique) Polyacrylates Polymères -- Synthèse Revêtements -- Finition Revêtements en phase aqueuse Index. décimale : 667.9 Revêtements et enduits Résumé : The substitution of solvent-based trim paints by more environmentally friendly waterborne products progresses rather slowly. One of the reasons for this is the limited window of workability of waterborne coating formulations compared to their solventborne equivalents. The limited application window of waterborne coating systems originates from the disperse nature of the resins used and the quick rise in viscosity when the critical particle stacking is reached. Consequently, the time in which irregularities in a freshly applied coating layer can be repaired without resulting in brush marks, commonly referred to as the open time, is rather short. Also, it is not uncommon with waterborne coatings to apply two or three layers to improve the coverage and hiding. The practical open time of aqueous coatings is, however, much shorter for the second layer than for the first and needs to be improved. This paper describes the work done to improve the open time of an aqueous white topcoat formulation in both the first and the second coating layer. Note de contenu : - MATERIALS AND METHODS : Synthesis of polyacrylate dispersion A - Synthesis of polymeric open time extending resin B - Synthesis of polymeric open time extending dispersion C - PREPARATION OF WHITE PIGMENTED TOPCOAT FORMULATIONS 1-3 - OPEN TIME DETERMINATION METHOD - Table 1 : Composition of white topcoat formulations (with component ratio of binder given in figure 2) - Table 2 : Characteristic parameters of the synthesised polymeric resins - Table 3 : General coating properties of the dry white topcoat formulations 1-3 En ligne : https://drive.google.com/file/d/1p3bh7ZlH_YBE2EwNZ7_m-c9hN-8EzSMo/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=39816 [article]

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