| Titre : |
To make ultra-black materials that won't weigh things down, consider the butterfly |
| Type de document : |
texte imprimé |
| Année de publication : |
2020 |
| Article en page(s) : |
p. 22-23 |
| Note générale : |
Bibliogr. |
| Langues : |
Anglais (eng) |
| Catégories : |
Chimie biomimétique
Matériaux intelligents
Noir (couleur)
Revêtements
|
| Index. décimale : |
667.9 Revêtements et enduits |
| Résumé : |
The authors have been studying why some butterflies have ultra-black wings that rival the blackest materials made by humans, using wing scales that are only a fraction as thick. |
| Note de contenu : |
- Fig. 1 : The black patches on the wings of some butterflies are 10 to 100 times darker than everyday black objects. Clockwise from top left: Catonephele numilia, Parides sesostris, P. iphidamas, Heliconius doris
- Fig. 2 : Zoom in to a butterfly's wing, and you'll see tayers of deticate scates. The wing scates of this Rajah Brooke's birdwing butterfly owe their velvety black appearance to a porous texture that helps them trap light
- Fig. 3 : A close-up look at the wings of the Rajah Brooke's birdwing butterfly with a scanning electron microscope reveals tiny structures in their wing scales that trap light so that virtually none escapes |
| En ligne : |
https://drive.google.com/file/d/1nevRRWojR_kv9qmsl-_tMqgVDg_TdEmH/view?usp=drive [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=34031 |
in POLYMERS PAINT COLOUR JOURNAL - PPCJ > Vol. 210, N° 4660 (04/2020) . - p. 22-23
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To make ultra-black materials that won't weigh things down, consider the butterfly in POLYMERS PAINT COLOUR JOURNAL - PPCJ, Vol. 210, N° 4660 (04/2020)
