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Susceptibility of surface-modified superhydrophobic wood and acetylated wood to mold and blue stain fungi
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: 0000-0002-6208-8314
RISE Research Institutes of Sweden, Bioeconomy and Health, Material and Surface Design.ORCID iD: 0000-0002-2614-1245
RISE Research Institutes of Sweden, Bioeconomy and Health, Material and Surface Design.
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2023 (English)In: Progress in organic coatings, ISSN 0300-9440, E-ISSN 1873-331X, Vol. 182, article id 107628Article in journal (Refereed) Published
Abstract [en]

The susceptibility of surface-modified wood, surface-modified acetylated wood and acetylated wood to mold and blue stain fungi was investigated. The surface modifications were based on fluorinated and non-fluorinated silicone nanofilaments for increased hydrophobicity. Results showed an increased mold resistance of the surface-modified superhydrophobic wood with mold appearing later or with less intensity on the modified surfaces than on the untreated wood in accelerated mold chamber tests due to the increased water resistance of the samples. All acetylated wood samples exhibited good mold resistance as the available water in acetylated wood was reduced. The surface modifications on acetylated wood had a slightly negative effect on mold resistance due to side effects from the modification. The surface-modified wood showed high blue stain fungi coverage, whereas almost no blue stain fungi were observed on the acetylated wood and surface-modified acetylated wood. The surface-modified superhydrophobic wood showed high mold coverage after conditioning in a high-humidity environment or after exposure to UV irradiation. Meanwhile, the acetylated wood and surface-modified superhydrophobic acetylated wood showed a small amount of mold coverage in these conditions. © 2023 The Authors

Place, publisher, year, edition, pages
Elsevier B.V. , 2023. Vol. 182, article id 107628
Keywords [en]
Acetylated wood, Blue stain, Mold, Silicone nanofilaments, Superhydrophobic surface modifications, Fungi, Hydrophobicity, Irradiation, Molds, Nanostructures, Surface properties, Wood, Nanofilaments, Silicone nanofilament, Stain fungi, Super-hydrophobic surfaces, Superhydrophobic, Superhydrophobic surface modification, Surface-modification, Surface-modified, Silicones
National Category
Wood Science
Identifiers
URN: urn:nbn:se:ri:diva-64384DOI: 10.1016/j.porgcoat.2023.107628Scopus ID: 2-s2.0-85153096634OAI: oai:DiVA.org:ri-64384DiVA, id: diva2:1754978
Note

Correspondence Address: Bardage, S.; RISE Research Institutes of Sweden, Sweden; email: stig.bardage@ri.se; 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: 2023-05-05 Created: 2023-05-05 Last updated: 2023-06-08Bibliographically approved

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Yin, HaiyanRingman, RebeckaSedighi Moghaddam, MaziarSwerin, AgneBardage, Stig

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