eprintid: 1549824
rev_number: 25
eprint_status: archive
userid: 608
dir: disk0/01/54/98/24
datestamp: 2017-05-03 17:41:30
lastmod: 2021-11-07 00:21:57
status_changed: 2017-05-03 17:41:30
type: article
metadata_visibility: show
creators_name: Larsson, M
creators_name: Johnsson, A
creators_name: Gårdebjer, S
creators_name: Bordes, R
creators_name: Larsson, A
title: Swelling and mass transport properties of nanocellulose-HPMC composite films
ispublished: pub
divisions: UCL
divisions: B04
divisions: C05
keywords: Cellulose nanocrystals, Composite films, Controlled release
Microfibrillated cellulose, Nanofibrillated cellulose,
Structure
note: This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions.
abstract: Composite films were sprayed from mixtures of water soluble hydroxypropyl methylcellulose (HPMC) and either nanofibrillated cellulose (NFC) or cellulose nanocrystals (CNC). Fiber diameter was similar for both nanocelluloses but fiber length was several μm for NFC and about 200 nm for CNC. Films were characterized for morphology, swelling, mass loss and transport properties. NFC-HPMC films swelled less than CNC-HPMC films; with a HPMC content of 20 wt% NFC-HPMC and CNC-HPMC films presented swelling of 7 and 75 g/g, respectively. The swelling strongly influenced water transport across the films, with slower transport for CNC-based materials compared to NFC-based materials. The properties of NFC-based films were comparable to previous results using microfibrillated cellulose (MFC) with heterogeneous structural content and fiber lengths of ~ 10 μm. The findings have implications for using nanocellulose to modulate material properties in wet-state applications, with effects being in strong contrast when using as a hardening filler in dry materials.
date: 2017-05-15
date_type: published
official_url: http://doi.org/10.1016/j.matdes.2017.03.011
oa_status: green
full_text_type: other
language: eng
primo: open
primo_central: open_green
verified: verified_manual
elements_id: 1282197
doi: 10.1016/j.matdes.2017.03.011
lyricists_name: Larsson, Lars
lyricists_id: LMLAR62
actors_name: Larsson, Lars
actors_name: Williamson, Brooke Leigh
actors_id: LMLAR62
actors_id: BLHAR98
actors_role: owner
actors_role: impersonator
full_text_status: public
publication: Materials and Design
volume: 122
pagerange: 414-421
issn: 1873-4197
citation:        Larsson, M;    Johnsson, A;    Gårdebjer, S;    Bordes, R;    Larsson, A;      (2017)    Swelling and mass transport properties of nanocellulose-HPMC composite films.                   Materials and Design , 122    pp. 414-421.    10.1016/j.matdes.2017.03.011 <https://doi.org/10.1016/j.matdes.2017.03.011>.       Green open access   
 
document_url: https://discovery.ucl.ac.uk/id/eprint/1549824/1/Swelling%20and%20mass%20transport%20properties%20of%20nanocellulose-HPMC%20composite%20films_Post_Print.pdf