Advanced

Swelling and mass transport properties of nanocellulose-HPMC composite films

Larsson, Mikael LU ; Johnsson, Anders LU ; Gårdebjer, Sofie LU ; Bordes, Romain and Larsson, Anette (2017) In Materials and Design 122. p.414-421
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... (More)

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.

(Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Cellulose nanocrystals, Composite films, Controlled release, Microfibrillated cellulose, Nanofibrillated cellulose, Structure
in
Materials and Design
volume
122
pages
8 pages
publisher
Elsevier
external identifiers
  • scopus:85015293819
  • wos:000400213200040
ISSN
0264-1275
DOI
10.1016/j.matdes.2017.03.011
language
English
LU publication?
yes
id
4988b8ee-f93a-496e-915d-d79c4bd95c34
date added to LUP
2017-03-29 10:59:35
date last changed
2017-09-18 11:34:21
@article{4988b8ee-f93a-496e-915d-d79c4bd95c34,
  abstract     = {<p>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.</p>},
  author       = {Larsson, Mikael and Johnsson, Anders and Gårdebjer, Sofie and Bordes, Romain and Larsson, Anette},
  issn         = {0264-1275},
  keyword      = {Cellulose nanocrystals,Composite films,Controlled release,Microfibrillated cellulose,Nanofibrillated cellulose,Structure},
  language     = {eng},
  month        = {05},
  pages        = {414--421},
  publisher    = {Elsevier},
  series       = {Materials and Design},
  title        = {Swelling and mass transport properties of nanocellulose-HPMC composite films},
  url          = {http://dx.doi.org/10.1016/j.matdes.2017.03.011},
  volume       = {122},
  year         = {2017},
}