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Fully-Biobased Highly Transparent Nanopaper with UV-Blocking Functionality Douglas Richard Hayden, Srivatssan Mohan, Arnout Imhof, and Krassimir P. Velikov ACS Appl. Polym. Mater., Just Accepted Manuscript • DOI: 10.1021/acsapm.9b00192 • Publication Date (Web): 07 Mar 2019 Downloaded from http://pubs.acs.org on March 11, 2019
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ACS Applied Polymer Materials
Fully-Biobased Highly Transparent Nanopaper with UV-Blocking Functionality Douglas R. Haydena*‡, Srivatssan Mohana‡, Arnout Imhof a*, Krassimir P. Velikova,b,c a
Soft Condensed Matter, Debye Institute for Nanomaterials Science, Utrecht University,
Princetonplein 1, 3584 CC, Utrecht, the Netherlands. b Unilever R&D Vlaardingen, Olivier van Noortlaan 120, 3133 AT Vlaardingen, the Netherlands c
Institute of Physics, University of Amsterdam, Science Park 904, 1098 XH Amsterdam, the
Netherlands ‡ These authors contributed equally. * E-mail:
[email protected],
[email protected] KEYWORDS biobased, photoprotection, nanopaper, ethyl cellulose nanoparticles, nanocellulose
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ABSTRACT. The development of green alternatives for petroleum-based plastics is essential for the protection of our environment and its ecosystems. Here, we demonstrate broadband UVblocking, highly transparent composite nanopaper films from a waste source of cellulose nanofibrils with embedded tunable UV-absorbing nanoparticles (NPs) from ethyl cellulose. These functional nanopaper films are highly-transparent, selectively block UV light and show excellent photostability, therefore with great potential as high-performance, renewable, sustainable and biodegradable materials for photoprotection applications. Moreover, the integration of functionalized NPs from ethyl cellulose into nanopaper is a platform for novel advanced sustainable materials with a myriad of functionality.
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ACS Applied Polymer Materials
The problem of plastic waste is one of the greatest challenges faced by the current generation. Every year, millions of tonnes of plastic pollutes our oceans resulting in potentially major damage to marine life, biodiversity, food security, and human health. The development of renewable, sustainable and biodegradable alternatives for plastic materials is therefore essential. Nanopaper has attracted attention as a low-cost, environmentally-friendly, highperformance material with strong potential to replace plastic substrates in many electronic and material applications.1-4 Nanopaper is prepared from the same chemical constituents as regular paper but uses very thin cellulose nanofibrils (
