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How silane modification affects the properties of gap fillers based on a mixture of wood powder and glass microballoons intended for wooden artefacts exposed outdoors

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cris.virtual.author-orcid0000-0003-3704-4149
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cris.virtual.author-orcid0000-0002-6947-9019
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cris.virtualsource.author-orcid#PLACEHOLDER_PARENT_METADATA_VALUE#
cris.virtualsource.author-orcid92cedaf4-e34b-41a0-96ab-690532a1623e
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cris.virtualsource.author-orcid7b4d6fa7-016d-4f87-a041-42ee4800e1ca
cris.virtualsource.author-orcid#PLACEHOLDER_PARENT_METADATA_VALUE#
dc.abstract.enGap fillers intended to fill gaps and holes in wooden artefacts exposed outdoors should have specific properties to efficiently serve their purpose, including compatibility with wood in terms of mechanical and moisture behaviour, resistance to external conditions, good adhesion to the wood surface, and ease of preparation and application. This research focuses on gap fillers composed of a mixture of wood powder and glass microballoons, using various adhesives, and investigates the effect of silane modification (Methyltrimethoxysilane and (3-Glycidyloxypropyl)trimethoxysilane) on their selected properties that include dimensional stability when exposed to moisture and liquid water, thermal stability, mechanical properties as well as features vital from the conservation perspective, such as workability of wet filling masses during preparation and application, their shrinkage during drying, and easiness of finishing their surfaces to adjust their appearance to the surrounding wood. The results show that silanes can reduce water uptake by the prepared composites, limit the wettability of their surfaces, and shrinkage during drying, while also improving the thermal stability of most of the composites without impairing other essential properties, such as mechanical behaviour, workability and finishing. However, their effect is not the same for all filling masses. The best performance was observed for gap fillers with Paraloid B-72 as an adhesive. Overall, prepared composites show potential for filling gaps in wooden artefacts exposed outdoors and benefit from modification with silanes. However, due to the complexity of the applied components and their interactions, the effects of silanes on such composites remain difficult to predict, highlighting the need for further research to confirm their usefulness in conservation practice.
dc.affiliationWydział Leśny i Technologii Drewna
dc.affiliation.instituteKatedra Nauki o Drewnie i Techniki Cieplnej
dc.affiliation.instituteKatedra Mechanicznej Technologii Drewna
dc.contributor.authorKryg, Paulina
dc.contributor.authorCalvino, Martina Maria
dc.contributor.authorLazzara, Giuseppe
dc.contributor.authorPerdoch, Waldemar
dc.contributor.authorBroda, Magdalena
dc.date.accessioned2026-03-23T12:29:00Z
dc.date.available2026-03-23T12:29:00Z
dc.date.issued2026
dc.description.bibliographyil., bibliogr.
dc.description.financepublication_nocost
dc.description.financecost0,00
dc.description.if2,5
dc.description.number2
dc.description.points140
dc.description.volume84
dc.identifier.doi10.1007/s00107-026-02390-9
dc.identifier.eissn1436-736X
dc.identifier.issn0018-3768
dc.identifier.urihttps://sciencerep.up.poznan.pl/handle/item/7876
dc.languageen
dc.pbn.affiliationforestry
dc.relation.ispartofEuropean Journal of Wood and Wood Products
dc.relation.pagesart. 40
dc.rightsClosedAccess
dc.sciencecloudnosend
dc.titleHow silane modification affects the properties of gap fillers based on a mixture of wood powder and glass microballoons intended for wooden artefacts exposed outdoors
dc.typeJournalArticle
dspace.entity.typePublication
oaire.citation.issue2
oaire.citation.volume84