| Titre : |
Morphological properties of airbrush spray-deposited enzymatic cellulose thin films |
| Type de document : |
texte imprimé |
| Année de publication : |
2018 |
| Article en page(s) : |
p. 759-769 |
| Note générale : |
Bibliogr. |
| Langues : |
Américain (ame) |
| Catégories : |
Cellulose La cellulose est un glucide constitué d'une chaîne linéaire de molécules de D-Glucose (entre 200 et 14 000) et principal constituant des végétaux et en particulier de la paroi de leurs cellules.
Couches minces
Dépôt par pulvérisation
Diffractométrie de rayons X
Métaux -- Revêtements
|
| Index. décimale : |
667.9 Revêtements et enduits |
| Résumé : |
We investigate the layer formation of enzymatic cellulose by airbrush spray coating on silicon oxide surfaces. The layer structure and morphology of enzymatic cellulose films in the thickness range between 86 nm and 2.1 µm is determined as a function of the spray coating procedures. For each spray coating step, layer buildup, surface topography, crystallinity as well as the nanoscale structure are probed with atomic force microscopy and surface-sensitive X-ray scattering methods. Without intermittent drying, the film thickness saturates; with intermittent drying, a linear increase in layer thickness with the number of spray pulses is observed. A closed cellulose layer was always observed. The crystallinity remains unchanged; the nanoscale structures show three distinct sizes. Our results indicate that the smallest building blocks increasingly contribute to the morphology inside the cellulose network for thicker films, showing the importance of tailoring the cellulose nanofibrils. For a layer-by-layer coating, intermittent drying is mandatory. |
| Note de contenu : |
- SAMPLE PREPARATION : Cellulose nanofibril preparation - Thin film preparation
- RESULTS AND DISCUSSION : Topographical information - Crystallinity - Structure and morphology |
| DOI : |
10.1007/s11998-018-0089-9 |
| En ligne : |
https://link.springer.com/content/pdf/10.1007%2Fs11998-018-0089-9.pdf |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=30854 |
in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 15, N° 4 (07/2018) . - p. 759-769
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Morphological properties of airbrush spray-deposited enzymatic cellulose thin films in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 15, N° 4 (07/2018)
