[en] We investigate the effect of shear flow applied during the drying of aqueous suspension of cellulose nanocrystals on optical reflective properties and structural characteristics of the resulting solidified films. Shear flow can significantly improve internal structural homogeneity of the films, while its effect on optical reflective properties is relatively minor. The measured width of the selective reflection peak is an order of magnitude larger than expected for an ideal helically modulated structure, which reflects a distribution of pitch values and possibly also of regimes of distorted helical modulation. We attribute these imperfections to the broad size distribution of the cellulose nanocrystals.
Disciplines :
Physique
Auteur, co-auteur :
Licen, M. V.
Majaron, B.
NOH, Junghyun ; University of Luxembourg > Faculty of Science, Technology and Communication (FSTC) > Physics and Materials Science Research Unit
Schütz, Christina
Bergström, Lennart
LAGERWALL, Jan ; University of Luxembourg > Faculty of Science, Technology and Communication (FSTC) > Physics and Materials Science Research Unit
Drevensek-Olenik, Irena
Co-auteurs externes :
yes
Langue du document :
Anglais
Titre :
Correlation between structural properties and iridescent colors of cellulose nanocrystalline films
Date de publication/diffusion :
13 septembre 2016
Titre du périodique :
Cellulose
ISSN :
0969-0239
eISSN :
1572-882X
Maison d'édition :
Springer, Pays-Bas
Peer reviewed :
Peer reviewed vérifié par ORBi
Focus Area :
Physics and Materials Science
Organisme subsidiant :
National Research Program of Slovenia P1-0192 Wallenberg Wood Science Center (WWSC) Research Foundation – Flanders (FWO)
