Dispersion of bacterial cellulose bundles in organic solvents and their assembly as ultra-low grammage coating on woven fabric
File(s)
Published version
Author(s)
Type
Journal Article
Abstract
Water is commonly considered as the optimal dispersing medium for nanocellulose given its hydrophilic nature. However, studies have also proven otherwise that alternative organic solvents may give better dispersion quality. Herein, a thermodynamic approach is used to estimate the Hansen solubility parameters of bacterial cellulose (BC) and understand the dispersion of BC bundles in selected organic solvents (i.e. ethyl acetate, acetone and ethanol-water mixtures). The correlation between the BC dispersion in different solvents and the aerosol particulate filtration performance of the resultant BC coated woven fabric is also presented. It is discovered that the best dispersion was achieved in a 60 % ethanol-water mixture, resulting in enhanced aerosol particulate filtration performance. At a BC coating grammage of 0.5 g m−2, the filtration efficiency exceeded 80 %, outperforming the BC coating produced from a water dispersion. These findings highlight the potential of understanding nanocellulose dispersion from a solubility parameter approach.
Date Issued
2025-04-15
Date Acceptance
2025-01-16
Citation
Carbohydrate Polymers, 2025, 354
ISSN
0144-8617
Publisher
Elsevier
Journal / Book Title
Carbohydrate Polymers
Volume
354
Copyright Statement
Crown Copyright © 2025 Published by Elsevier Ltd. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/).
License URL
Identifier
https://www.ncbi.nlm.nih.gov/pubmed/39978915
PII: S0144-8617(25)00073-6
Subjects
Bacterial cellulose
Barrier clothing
Chemistry
Chemistry, Applied
Chemistry, Organic
COMPOSITES
Dispersion
EMULSIONS
ENERGY
Hansen solubility parameter
IGC
INVERSE GAS-CHROMATOGRAPHY
MICROCRYSTALLINE CELLULOSE
NANOCELLULOSE
NATURAL FIBERS
PARAMETERS
Particulate filtration
Physical Sciences
Polymer Science
Science & Technology
Surface energy
SURFACE-PROPERTIES
Publication Status
Published
Coverage Spatial
England
Article Number
123292
Date Publish Online
2025-01-17