Optically transparent laminated acrylic composites reinforced with mercerised bacterial cellulose nanopaper
File(s)
Published version
Author(s)
Wloch, Daniela
Herrera, Natalia
Lee, Koon-Yang
Type
Journal Article
Abstract
Bacterial cellulose (BC) nanopaper is an important material structure for the production of high-performance cellulose nanocomposites. Here, we report the mercerisation of BC nanofibrils as a route to produce ductile BC nanopaper. Mercerised BC nanopaper was found to possess a ductile response under uniaxial tension, albeit with lower tensile modulus and strength compared to neat BC nanopaper due to the presence of large fraction of disordered cellulose. The impregnation of (mercerised) BC nanopaper with an acrylated urethane resin, followed by lamination with impact-modified acrylic produces optically transparent BC/acrylic composites. At a BC loading of only 8 wt%, the mercerised BC/acrylic composite possessed a flatwise and edgewise Charpy impact strength of 19.0 kJ m−2 and 19.5 kJ m−2, respectively; a 62% and 22% increase over monolithic acrylic. The influence of different alkaline treatments on the morphology, crystallography, mechanical and optical properties of the BC nanopaper, as well as the BC/acrylic composites are juxtaposed in this work.
Date Issued
2023-09-01
Date Acceptance
2023-04-16
Citation
Composites Part A: Applied Science and Manufacturing, 2023, 172
ISSN
1359-835X
Publisher
Elsevier
Journal / Book Title
Composites Part A: Applied Science and Manufacturing
Volume
172
Copyright Statement
© 2023 The Authors. Published by Elsevier Ltd. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/).
License URL
Subjects
(A) Biocomposite
(B) Fracture toughness
(C) Optical properties
CURRENT INTERNATIONAL RESEARCH
Engineering
Engineering, Manufacturing
FIBERS
FILMS
Materials Science
Materials Science, Composites
MERCERIZATION
MODEL
Nanocellulose
NETWORKS
Science & Technology
STRENGTH
Technology
TENSILE PROPERTIES
X-RAY
YOUNGS MODULUS
Publication Status
Published
Article Number
107583
Date Publish Online
2023-04-19