Ionic liquid processing of residual wood powder into additive-free wood composites
File(s)
Published version
Author(s)
Barr, Meredith Rose
Lee, Koon-Yang
Type
Journal Article
Abstract
This work presents a novel process for production of additive-free wood composites by ionic liquid treatment of wood powder involving extraction of lignin followed by precipitation onto particle surfaces, and hot pressing to form a cellulose-reinforced lignin biocomposite. Physicochemical properties of lignin-coated wood powders, as well as their degree of fusion upon hot pressing, were evaluated with the aim of optimising ionic liquid treatment and hot-pressing conditions. Optimal conditions to achieve complete fusion while minimising process energy demand were determined using response surface methodology, and mechanisms of process parameter effects investigated using gas pycnometry, electron microscopy, image analysis, thermogravimetry, and calorimetry. These novel materials, derived solely from waste with only reusable reagents, represent a sustainable alternative to existing engineered wood products, which rely on petrochemical additives that release toxic volatile compounds, offering a means to reduce environmental and health hazards associated with production and use of composites from wood waste.
Date Issued
2024-10-01
Date Acceptance
2024-05-16
Citation
Waste and Biomass Valorization, 2024, 15 (10), pp.6035-6050
ISSN
1877-2641
Publisher
Springer
Start Page
6035
End Page
6050
Journal / Book Title
Waste and Biomass Valorization
Volume
15
Issue
10
Copyright Statement
© The Author(s) 2024, corrected publication 2024 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/.
License URL
Subjects
Binder
Biocomposite
Biomass
DESIGN
Environmental Sciences
Environmental Sciences & Ecology
Fibreboard
FRACTIONATION
Life Sciences & Biomedicine
Lignin
Pretreatment
Sawdust
Science & Technology
Structural
WASTE
Publication Status
Published
Date Publish Online
2024-05-31