| Titre : |
Waterborne coatings based on acrylic latex containing nanostructured ZnO as an active additive |
| Type de document : |
texte imprimé |
| Auteurs : |
Martina Dankova, Auteur ; Andrea Kalendova, Auteur ; Jana Machotova, Auteur |
| Année de publication : |
2020 |
| Article en page(s) : |
p. 517-529 |
| Note générale : |
Bibliogr. |
| Langues : |
Américain (ame) |
| Catégories : |
Anticorrosifs
Anticorrosion
Antimicrobiens
Corrosion
Essais (technologie)
Formulation (Génie chimique)
Latex
Liants
Nanoparticules
Oxyde de zinc
Polyacryliques
Revêtements (produits chimiques):Peinture (produits chimiques)
Revêtements -- Propriétés mécaniques:Peinture -- Propriétés mécaniques
Revêtements en phase aqueuse -- Additifs:Peinture en phase aqueuse -- Additifs
|
| Index. décimale : |
667.9 Revêtements et enduits |
| Résumé : |
This work was devoted to the study of the properties of an acrylate latex-based binder synthesized by semicontinuous emulsion polymerization. Nanoparticles of zinc oxide (NPsZnO) in an amount of 1.5 wt% with respect to the polymer content were added to the binder during the synthesis procedure. The binder was then homogenized with various anticorrosion pigments, fillers, and additives to obtain model anticorrosion paints. In addition, model paints with expected enhanced antimicrobial resistance designed for the protection of mineral substrates were also formulated and prepared. The effects of NPsZnO on the physicomechanical properties and on the chemical, anticorrosion, and antimicrobial resistance of the paint films were examined. The properties of the paints based on the synthesized binders were also compared to those of a commercial acrylate-type binder. The results show that incorporation of NPsZnO into the latex during the synthesis provided stable polymeric dispersions exhibiting physicochemical, mechanical, and anticorrosion properties that were superior to those of a blank binder (containing no nanoparticles) as well as to the commercial binder. It was also demonstrated that the binder with NPsZnO provided anticorrosion paints that are usable as coatings for environments with a moderate corrosion burden as well as paints for interior applications with reduced biocide contents. |
| Note de contenu : |
- EXPERIMENTAL METHODS AND MATERIALS : Preparation of latexes - Formulation and preparation of the pigmented points - Preparation of paint films samples
- TESTING METHODS : Determination of the characteristic properties of the pigments, fillers, and binders - Physicomechanical and chemical properties of the prepared coatings - Antimicrobial properties of the coating films
- RESULTS AND DISCUSSION : Determination of the characteristic material properties - Hardness evaluation : Buchholz indentation test - Flash corrosion evaluation for the anticorrosion paints - Evaluation of mechanical and chemical resistance of the anticorrosion paints - Evaluation of the corrosion resistance of the paint films after exposure to a condensation-water atmosphere - Evaluation of the antimicrobial resistance of the paints designed for mineral substrates |
| DOI : |
https://doi.org/10.1007/s11998-019-00302-6 |
| En ligne : |
https://link.springer.com/content/pdf/10.1007/s11998-019-00302-6.pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=34000 |
in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 17, N° 2 (03/2020) . - p. 517-529
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Waterborne coatings based on acrylic latex containing nanostructured ZnO as an active additive in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 17, N° 2 (03/2020)
