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Sprayed water-based lignin colloidal nanoparticle-cellulose nanofibril hybrid films with UV-blocking ability
Deutsches Elektronen-Synchrotron DESY Notkestraße 85 Hamburg 22607, Germany; Institute of Wood Science, Universität Hamburg, Leuschnerstraße 91 Hamburg 21031, Germany; Forschungs-Neutronenquelle Heinz Maier-Leibnitz FRM II, Technische Universität München, Lichtenbergstraße 1 Garching 85748, Germany.
Deutsches Elektronen-Synchrotron DESY Notkestraße 85 Hamburg 22607, Germany; Technical University of Munich, TUM School of Natural Sciences, Department of Physics, Chair for Functional Materials, James-Franck-Str. 1 Garching 85748, Germany.
KTH, School of Engineering Sciences in Chemistry, Biotechnology and Health (CBH), Centres, Wallenberg Wood Science Center. KTH, School of Engineering Sciences in Chemistry, Biotechnology and Health (CBH), Fibre- and Polymer Technology.ORCID iD: 0000-0002-8127-9183
Deutsches Elektronen-Synchrotron DESY Notkestraße 85 Hamburg 22607, Germany.
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2024 (English)In: Nanoscale Advances, E-ISSN 2516-0230, Vol. 6, no 20, p. 5031-5041Article in journal (Refereed) Published
Abstract [en]

In the context of global climate change, the demand for new functional materials that are sustainable and environmentally friendly is rapidly increasing. Cellulose and lignin are the two most abundant raw materials in nature, and are ideal components for functional materials. The hydrophilic interface and easy film-forming properties of cellulose nanofibrils make them excellent candidates for natural biopolymer templates and network structures. Lignin is a natural UV-shielding material, as it contains a large number of phenolic groups. In this work, we have applied two routes for spray deposition of hybrid films with different laminar structures using surface-charged cellulose nanofibrils and water-based colloidal lignin particles. As the first route, we prepare stacked colloidal lignin particles and cellulose nanofibrils hybrid film through a layer-by-layer deposition. As the second route, we spray-deposite premixed colloidal lignin particles and cellulose nanofibrils dispersion to prepare a mixed hybrid film. We find that cellulose nanofibrils act as a directing agent to dominate the arrangement of the colloidal lignin particles in a mixed system. Additionally, cellulose nanofibrils eliminate the agglomerations and thus increase the visible light transparency while retaining the UV shielding ability. Our research on these colloidal lignin and cellulose nanofibril hybrid films provides a fundamental understanding of using colloidal lignin nanoparticles as functional material on porous cellulose-based materials, for example on fabrics.

Place, publisher, year, edition, pages
Royal Society of Chemistry , 2024. Vol. 6, no 20, p. 5031-5041
National Category
Paper, Pulp and Fiber Technology Physical Chemistry Materials Chemistry
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URN: urn:nbn:se:kth:diva-366647DOI: 10.1039/d4na00191eISI: 001303435500001PubMedID: 39247863Scopus ID: 2-s2.0-85202938425OAI: oai:DiVA.org:kth-366647DiVA, id: diva2:1982845
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QC 20250709

Available from: 2025-07-09 Created: 2025-07-09 Last updated: 2025-07-09Bibliographically approved

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Ribca, IulianaSöderberg, L. DanielJohansson, MatsRoth, Stephan V.

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