Additives for water-borne coatings / Wernfried Heilen / Hannover [Germany] : Vincentz Network GmbH & Co. (2021)

Titre : Additives for water-borne coatings Type de document : texte imprimé Auteurs : Wernfried Heilen, Auteur ; Adalberg Braig, Auteur ; Anne Drewer, Auteur ; Patrick Glöckner, Auteur ; Roman grabbe, Auteur ; Juergen Kirchner, Auteur ; Frank Kleinsteinberg, Auteur ; Benoît Magny, Auteur ; Thomas Matten, Auteur ; Ingrid K. Meier, Auteur ; Kirstin Schulz, Auteur ; Heike Semmler, Auteur ; Jean-Marc Suau, Auteur Mention d'édition : 2nd revised Ed. Editeur : Hannover [Germany] : Vincentz Network GmbH & Co. Année de publication : 2021 Importance : 270 p. Présentation : ill. Format : 23 cm ISBN/ISSN/EAN : 978-3-7486-0486-0 Prix : 169 E Note générale : Index - Bibliogr. Langues : Anglais (eng) Catégories : Revêtements en phase aqueuse -- Additifs Index. décimale : 667.9 Revêtements et enduits Résumé : Water-borne systems are the coatings of the future. The market is developing an insatiable appetite for ecologically sound coatings based on renewable raw materials. The demands on coating performance are at least as high as those on environmental compatibility. Additives help to protect the environment by effectively reducing the use of organic solvents. Many of today’s water-borne coatings could not be formulated without them. When incorporated into water-borne paints, coatings and printing inks, they enhance both the production process and the performance of the applied inks and coating materials. Additives for water-borne coatings is a must read for formulators wishing to brush up on water-borne coating systems, as well as experts seeking to have detailed knowledge at their finger tips. Note de contenu : - Wetting and dispersing additives - Defoaming of coating systems - Synthetic rheology modifiers - Substrate wetting additives - Improving performance with co-binders - Deaerators - Flow and levelling additives - Wax additives - Light stabilisers - In-can and dry film preservation - Hydrophobing agents - Functional silica with unique properties Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=40424

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Biologically inspired fighting germs using HCIO hydrogels with smectites / Jessica Gödeker in SOFW JOURNAL, Vol. 148, N° 12 (12/2022)  

[article]  inSOFW JOURNAL > Vol. 148, N° 12 (12/2022) . - p. 2-7 Titre : Biologically inspired fighting germs using HCIO hydrogels with smectites Type de document : texte imprimé Auteurs : Jessica Gödeker, Auteur ; Anne Drewer, Auteur ; Tom Lamont, Auteur Année de publication : 2022 Article en page(s) : p. 2-7 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Acide hypochloreux Argile Chlore Désinfectants Désinfection Détergents Formulation (Génie chimique) Hectorite hydrocolloïdes Hygiène Laponite Rhéologie Smectite Thixotropie Index. décimale : 668.1 Agents tensioactifs : savons, détergents Résumé : Hypochlorous acid (HClO) is formed in the white blood cells of all mammals. As part of a mechanism that developed several millions of years ago, it also helps the human body to protect against pathogens that enter it. This makes the weak acid a nature-based option for disinfection. Despite this, a disadvantage of water-thin solutions of hypochlorous acid is that they have significantly limited anti-microbial potential due to the reduced contact time. Hydrogels overcome this limitation and lead to improved and more sustainable use. Due to the high reactivity of hypochlorous acid, common additives such as polymer thickeners and natural clays are not suitable. Synthetic smectite clays – of which the presented PURABYK-R 5500 is one example – are very similar in structure to natural clays. However, due to their subsequent technical development, synthetic smectite clays exhibit better stability and are therefore very well suited to forming these hydrogels. They stabilize the hypochlorous acid in the required pH value range and are free from components that impair the activity of HClO. These unique additives are produced under controlled conditions from naturally occurring inorganic mineral sources. They offer the possibility of using structures from nature, paired with a very high purity and consistent quality. Their great potential is presented here using PURABYK-R 5500 as an example. Note de contenu : - INTRODUCTION : Hypochlorous acid - an effective nature-based weapon for combatting germs - HCIO-based hydrogels - a challenging system - PURABYK-R 5500 - a new, modified phyllosilicate with improved compatibility - MATERIALS AND METHODS : Formulation of the hydrogel with PURABYK-R 5500 - A more in-depth reflection - high-resolution procedure for forming the nanostructures - RESULTS AND DISCUSSION : Micro- and macro-morphology using TEM and AFM - Viscosity behavior of the hydrogel - thixotropy and yield point - Biocide effectiveness - influence of PURABYK-R 5500 - Table 1 : Formulation of the hydrogel En ligne : https://drive.google.com/file/d/1zGfLvdCzX9ayCPFPutQAIz8mnUSThkhg/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=38571 [article]

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