| Titre : |
Optimizing the benefits of TiO2 in paints |
| Type de document : |
texte imprimé |
| Auteurs : |
Michael P. Diebold, Auteur |
| Année de publication : |
2020 |
| Article en page(s) : |
p. 1-17 |
| Note générale : |
Bibliogr. |
| Langues : |
Américain (ame) |
| Catégories : |
Blanc (couleur)
Dioxyde de titane
Durée de vie (Ingénierie)
Farinage (défauts)
Lumière -- Absorption
Lumière -- Diffusion
Opacité (optique)
Pigments inorganiques
Revêtements:Peinture
|
| Index. décimale : |
667.9 Revêtements et enduits |
| Résumé : |
TiO2 is found virtually in every coatings lab and manufacturing site around the world and is used in almost all paints. The primary role of TiO2 is to provide brightness and opacity, with a secondary role in many exterior paints of improving durability. The effectiveness of TiO2 as a brightener or opacifier is greatly affected by the specifics of the paint formulation and by the paint making process. This sensitivity can be understood in terms of the physics that govern light scattering. As for improving paint durability, TiO2 is an excellent UV light absorber and protects underlying resin from harmful UV radiation. However, this benefit can be offset by the formation of radicals at the TiO2/resin interface. This paper will focus on the formulation factors that affect the light scattering efficiency and the durability performance of TiO2 and techniques to optimize these properties. |
| Note de contenu : |
- INTRODUCTION : Light scatternig : Mie scattering - Light scattering : dependent scattering - Light scattering vs light absorption - Scattering vs PVC - Quantifying pigment dispersion - Proposed methods foroptimizing opacity - Air/TiO2 composite particles - Low scattering efficiency pigment - Random nanoparticle spacers - Targeted nanoparticle spacers - Air voids - Light absorption of TiO2 pigments - Consequences of degradation-chalking - "Ultimate" TiO2 durability - Consequences of degradation-gloss loss - Two-component approach |
| DOI : |
10.1007/s11998-019-00295-2 |
| En ligne : |
https://link.springer.com/content/pdf/10.1007/s11998-019-00295-2.pdf |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=33725 |
in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 17, N° 1 (01/2020) . - p. 1-17
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Optimizing the benefits of TiO2 in paints in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 17, N° 1 (01/2020)
