| Titre : |
Cool solution for the coatings industry : Improving performance by evaluating reflectance and pigment chemistry |
| Type de document : |
texte imprimé |
| Auteurs : |
Daniel Lladó, Auteur ; Patricia Pérez, Auteur ; Jordi Fernández Urbán, Auteur |
| Année de publication : |
2017 |
| Article en page(s) : |
p. 74-79 |
| Note générale : |
Bibliogr. |
| Langues : |
Anglais (eng) |
| Catégories : |
Coil coatings
Dioxyde de titane
Matériaux -- Propriétés fonctionnelles
Noir de carbone
Pigments inorganiques
Polyacryliques
Polyfluorure de vinylidène
Réflectance
Réflectivité thermique
|
| Index. décimale : |
667.9 Revêtements et enduits |
| Résumé : |
Demand for coatings that save energy and reduce thermal stress is increasing. Cool pigments are those that reflect more near-infrared radiation (NIR) and thus have a high TSR (Total Solar Reflectance). They are usually associated with complex inorganic colour pigments (CICPs) and are established on the market for their cool properties. Evaluating the TSR and the relevant pigment chemistry provides an opportunity to fine tune formulation for maximum performance. |
| Note de contenu : |
- Measuring solar radiation to evaluate effect
- Total solar reflectance (TSR)
- Substrate and pigment chemistry are critical to formulation
- Contribution to TSR depends on pigment chemistry
- L value more important than pigment concentration
- Blue additive to improve jetness and cost effectiveness
- Cool property considerations
- FIGURES : 1. Scheme of how sunlight is converted into heat. TST of a white coating compared with a black coating - 2. Carbon black TSR vs different grades of pigment brown 29 - 3. TSR of unpigmented and yellow paints (coil coating) at different thicknesses and different substrates. TSR of different blues at different thicknesses and substrates - 4. TSR curves comparing Nubicoat HRD and pigment blue 28 at the same dosage - 5. Pigment brown 29 with TiO2 ; L value vs TSR - 6. Nubicoat HRD with TiO2 ; L value vs TSR - 7. Effect of titanium dioxide on the TSR |
| En ligne : |
https://drive.google.com/file/d/1VszrAz04ZUotWLw8T9pbfqIWW-CoIHDa/view?usp=drive [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=27950 |
in EUROPEAN COATINGS JOURNAL (ECJ) > N° 3 (03/2017) . - p. 74-79
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