Anomalous-Diffusion-Assisted Brightness in White Cellulose Nanofibril Membranes
Loading...
Access rights
openAccess
URL
Journal Title
Journal ISSN
Volume Title
A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
This publication is imported from Aalto University research portal.
View publication in the Research portal (opens in new window)
View/Open full text file from the Research portal (opens in new window)
Other link related to publication (opens in new window)
View publication in the Research portal (opens in new window)
View/Open full text file from the Research portal (opens in new window)
Other link related to publication (opens in new window)
Date
2018-04
Major/Subject
Mcode
Degree programme
Language
en
Pages
1-7
Series
Advanced Materials, Volume 30, issue 16
Abstract
The understanding of the interaction between light and complex, random structures is the key for designing and tailoring the optical appearance and performance of many materials that surround us, ranging from everyday consumer products, such as those for personal care, paints, and paper, to light diffusers used in the LED-lamps and solar cells. Here, it is demonstrated that the light transport in membranes of pure cellulose nanofibrils (CNFs) can be controlled to achieve bright whiteness in structures only a few micrometers thick. This is in contrast to other materials, such as paper, which require hundreds of micrometers to achieve a comparable appearance. The diffusion of light in the CNF membranes is shown to become anomalous by tuning the porosity and morphological features. Considering also their strong mechanical properties and biocompatibility, such white coatings are proposed as a new application for cellulose nanofibrils.Description
Keywords
Anomalous diffusion, Cellulose nanofibrils, Nanocellulose, Scattering, Whiteness
Other note
Citation
Toivonen, M S, Onelli, O D, Jacucci, G, Lovikka, V, Rojas, O J, Ikkala, O & Vignolini, S 2018, ' Anomalous-Diffusion-Assisted Brightness in White Cellulose Nanofibril Membranes ', Advanced Materials, vol. 30, no. 16, 1704050, pp. 1-7 . https://doi.org/10.1002/adma.201704050