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Kraft lignin-glyoxal, phase-change material modified wood for enhancing thermal-energy storage capability
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Wood Science and Engineering.ORCID iD: 0000-0003-0852-5066
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Wood Science and Engineering.ORCID iD: 0000-0002-7711-9267
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Wood Science and Engineering. Biotechnical Faculty, University of Ljubljana, Ljubljana, Slovenia.ORCID iD: 0000-0002-5565-6651
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Wood Science and Engineering.ORCID iD: 0000-0002-4526-9391
2024 (English)In: Wood Material Science & Engineering, ISSN 1748-0272, E-ISSN 1748-0280, Vol. 19, no 3, p. 821-824Article in journal (Refereed) Published
Abstract [en]

The rise in energy consumption and the increase in the use of bio-based materials in the building sector, has led to the need to investigate the possibilities to use wood as a porous support material for phase change materials (PCMs), and thereby creating a thermal regulative wood-based product. This study investigated the influence of Kraft lignin-glyoxal prepolymer on the thermal-energy storage properties of wood modified with paraffin-type of PCM. The implementation of the modified wood involves preparing PCM emulsions, synthesising lignin-glyoxal prepolymer, and modifying wood with the PCM-Kraft lignin-glyoxal emulsion through vacuum-pressure impregnation. The infrared imaging suggested the ability of PCM-modified wood to delay the temperature changes, even with the introduction of Kraft lignin-glyoxal prepolymer. In conclusion, it is feasible to introduce thermal-energy storage property into wood with the addition of Kraft lignin-glyoxal prepolymer. Further studies will focus on the long-term thermal storage performance properties when this PCM system is subjected to repeated heating/cooling cycles. 

Place, publisher, year, edition, pages
Taylor & Francis, 2024. Vol. 19, no 3, p. 821-824
Keywords [en]
Encapsulation, paraffin, thermal-regulated wood
National Category
Wood Science
Research subject
Wood Science and Engineering
Identifiers
URN: urn:nbn:se:ltu:diva-105332DOI: 10.1080/17480272.2024.2344050ISI: 001217231100001Scopus ID: 2-s2.0-85192186364OAI: oai:DiVA.org:ltu-105332DiVA, id: diva2:1855901
Funder
Swedish Research Council FormasLuleå University of Technology, CT WOOD; SUN
Note

Validerad;2024;Nivå 2;2024-07-02 (hanlid);

Funder: Swedish Wood Industry;

Full text license: CC BY-NC-ND

Available from: 2024-05-03 Created: 2024-05-03 Last updated: 2024-07-02Bibliographically approved

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Lin, Chia-FengKarlsson, OlovJones, DennisSandberg, Dick

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