| Titre : |
Striking performance and stability at high pH : Modern additives for biocide-free paints facilitate robust formulations that offer lasting stability, superior application properties and workability |
| Type de document : |
texte imprimé |
| Auteurs : |
Sjören Schweizerhof, Auteur ; Yanwei Brecht-Wu, Auteur ; Nils Kottner, Auteur |
| Année de publication : |
2021 |
| Article en page(s) : |
p. 20-26 |
| Note générale : |
Bibliogr. |
| Langues : |
Anglais (eng) |
| Catégories : |
Agents dispersants (chimie)
Antimousse
Epaississants
Formulation (Génie chimique)
Revêtements en phase aqueuse -- Additifs:Peinture en phase aqueuse -- Additifs
Stabilité hydrolytique
|
| Index. décimale : |
667.9 Revêtements et enduits |
| Résumé : |
Additives are essential for durable, easy-to-apply coatings Water-borne architectural and DIY coatings usually require additives such as defoamers, rheology modifiers, dispersing agents and preservatives. These mut be compliant, safe, eco-friendly and efficient at low dosage. Here, we present a new all-round dispersant and core-shell thickener for formulating advanced, durable, biocide-free paints. |
| Note de contenu : |
- The return of silicate paints
- Accelerated aging in alkaline conditions
- Pivotal role of pigment dispersants & paint stabilisers
- Reduced paint complexity
- Superior colour development and rub-out
- Rheology modifiers : essential for in-can stability
- Better hydrolytic stability and workability
- The right defoamer - Robust and long-lasting
- Table 1 : Simplified silicate-based test formulation for chiecking additive stability under accelerated conditions (pH approx. 11.5)
- Table 2 : Actual real silicate paint formulation used (<5 % organic content). The investigated additives are marked in grey
- Table 3 : Defoamer investigation in the quick test formulation after storage for seven days at 60°C. All defoamers were tested at two pH levels. The efficiency/persistency was evaluated by applying an air sparge test and roller applicationon PVC charts |
| En ligne : |
https://drive.google.com/file/d/10GVcOcoIrKMyhPNuXJjDod_DZUtK7JBe/view?usp=drive [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=35906 |
in EUROPEAN COATINGS JOURNAL (ECJ) > N° 6 (06/2021) . - p. 20-26
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