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Wettability performance and physicochemical properties of UV exposed superhydrophobized birch wood
RISE Research Institutes of Sweden, Bioeconomy and Health, Material and Surface Design. KTH Royal Institute of Technology, Sweden.ORCID iD: 0000-0002-9585-1961
RISE Research Institutes of Sweden, Bioeconomy and Health, Material and Surface Design.ORCID iD: 0000-0002-2614-1245
RISE Research Institutes of Sweden.
RISE Research Institutes of Sweden. KTH Royal Institute of Technology, Sweden.
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2022 (English)In: Applied Surface Science, ISSN 0169-4332, E-ISSN 1873-5584, Vol. 584, article id 152528Article in journal (Refereed) Published
Abstract [en]

The effect of prolonged ultraviolet (UV) irradiation on the performance of superhydrophobized birch and acetylated birch wood was investigated. The surface modification of the wood was based on a newly developed method using silicone nanofilaments. The combination of surface modification and acetylation of wood showed good wetting resistance also after 600 h of UV exposure, with water contact angles greater than 140° and water uptake 30 times lower by weight than that of the non-surface-modified wood as determined by multicycle Wilhelmy plate measurements. Scanning electron microscopy images revealed that the silicone nanofilaments can still be observed on the wood samples after UV irradiation. The surface-modified wood samples exhibited significant color change after UV exposure. FTIR spectra showed that lignin was degraded on both the non-surface-modified wood surfaces and the wood surface-modified with the silicone nanofilaments. © 2022 The Authors

Place, publisher, year, edition, pages
Elsevier B.V. , 2022. Vol. 584, article id 152528
Keywords [en]
Acetylated wood, Lignin degradation, Superhydrophobicity, Surface modification, UV irradiation, Wettability, Acetylation, Hydrophobicity, Irradiation, Lignin, Physicochemical properties, Scanning electron microscopy, Silicones, Surface treatment, Wetting, Wood products, Birch wood, Modified wood, Nanofilaments, Surface-modification, Surface-modified, Ultraviolet exposure, Ultraviolet irradiations, Wood samples, Fourier transform infrared spectroscopy, Polysilicones, Radiation Effects, Water Repellence
National Category
Wood Science
Identifiers
URN: urn:nbn:se:ri:diva-58496DOI: 10.1016/j.apsusc.2022.152528Scopus ID: 2-s2.0-85123687684OAI: oai:DiVA.org:ri-58496DiVA, id: diva2:1638984
Note

 Funding details: 2016-01362; Funding details: 2017-02712; Funding details: Karlstads universitet, KAU; Funding text 1: This work was supported by the Formas research council [grant no. 2016-01362] and the Vinnova project [grant no. 2017-02712]. AS is a researcher at Pro2BE at Karlstad University, the research environment for Processes and Products for a circular Biobased Economy.; Funding text 2: This work was supported by the Formas research council [grant no. 2016-01362] and the Vinnova project [grant no. 2017-02712]. AS is a researcher at Pro2BE at Karlstad University, the research environment for Processes and Products for a circular Biobased Economy.

Available from: 2022-02-18 Created: 2022-02-18 Last updated: 2023-05-17Bibliographically approved

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Yin, HaiyanSedighi Moghaddam, MaziarSwerin, Agne

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