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Barrier packaging solutions from residual biomass: Synergetic properties of CNF and LCNF in films

Trifol, Jon and Moriana, Rosana (2022). Barrier packaging solutions from residual biomass: Synergetic properties of CNF and LCNF in films. Industrial Crops and Products. 177 , 114493
[Research article]

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Abstract

In this paper, for the first time, it is studied the synergetic properties of two different grades of nanocelluloses with different chemical compositions (cellulose nanofibrils-CNF with less than 1% of lignin and lignocellulose nanofibrils-LCNF with 16% of lignin). CNF and LCNF were mixed in different ratios to obtain bi-component films. Their performance in terms of transparency, bioactivity, thermo-mechanical and gas barrier properties was evaluated and compared with the performance of the neat CNF films. The presence of LCNF in the formulations conferred antioxidant and UV blocking properties to the films, as well as improved mechanical and barrier properties. Specifically, the incorporation of 25% LCNF to the CNF films increased the mechanical properties (94% increase in tensile stress and a 414% increase in strain at break) and decreased the water vapor trans-mission rate by 16% and the oxygen transmission rate by 53%. This performance improvement was attributed to the coexistence of nanocelluloses with different chemical composition and morphology. LCNF contributed to increment the interfacial adhesion between cellulose nanofibrils due to the presence of lignin and promote the creation of more tortuous paths for gas molecules. These synergetic properties shown by the CNF/LCNF bi-component films demonstrate high potential to be used as gas barrier packaging solutions.

Authors/Creators:Trifol, Jon and Moriana, Rosana
Title:Barrier packaging solutions from residual biomass: Synergetic properties of CNF and LCNF in films
Series Name/Journal:Industrial Crops and Products
Year of publishing :2022
Volume:177
Article number:114493
Number of Pages:6
Publisher:ELSEVIER
ISSN:0926-6690
Language:English
Publication Type:Research article
Article category:Scientific peer reviewed
Version:Published version
Copyright:Creative Commons: Attribution 4.0
Full Text Status:Public
Subjects:(A) Swedish standard research categories 2011 > 4 Agricultural Sciences > 401 Agricultural, Forestry and Fisheries > Agricultural Science
Keywords:1 lignin containing cellulose nanofibers (LCNF), 2 cellulose nanofibers (CNF), 3 gas barrier properties, 4 optical properties 5 antioxidant activity 6, mechanical properties
URN:NBN:urn:nbn:se:slu:epsilon-p-115930
Permanent URL:
http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-p-115930
Additional ID:
Type of IDID
DOI10.1016/j.indcrop.2021.114493
Web of Science (WoS)000742709800005
ID Code:27105
Faculty:NJ - Fakulteten för naturresurser och jordbruksvetenskap
Department:(NL, NJ) > Department of Molecular Sciences
Deposited By: SLUpub Connector
Deposited On:16 Feb 2022 13:25
Metadata Last Modified:16 Feb 2022 13:31

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