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Surface modification of Norway spruce wood by octadecyltrichlorosilane (OTS) nanosol by dipping and water vapour diffusion properties of the OTS-modified wood
Linnaeus University, Faculty of Technology, Department of Forestry and Wood Technology. Czech Technical University in Prague, Czech Republic.ORCID iD: 0000-0001-6940-3850
Czech Technical University in Prague, Czech Republic.
Czech Technical University in Prague, Czech Republic.
Czech Technical University in Prague, Czech Republic.
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2018 (English)In: Holzforschung, ISSN 0018-3830, E-ISSN 1437-434X, Vol. 72, no 1, p. 45-56Article in journal (Refereed) Published
Abstract [en]

The present research deals with a simple dipping method to insert octadecyltrichlorosilane (OTS) into cell walls of spruce wood and to deposit OTS layers on its inner and outer surfaces. Distribution and chemical interactions of OTS with wood polymers has been investigated by scanning electron microscopy-energy-dispersive X-ray spectroscopy (SEM-EDS), X-ray photoelectron spectroscopy (XPS) and Fourier transform infrared (FTIR) spectroscopy. The OTS/n-hexane solution penetrated into wood via capillary forces through ray tracheids and bordered pits and was deposited as OTS organic-inorganic layers on wood cell walls. The hypothesis is supported by the results, according to which the OTS molecules are hydrolysed by the wood moisture and by free OH groups of the cell wall components. The hydrolysed OTS molecules react with the OH groups and elevate the hydrophobicity of wood.

Place, publisher, year, edition, pages
Walter de Gruyter, 2018. Vol. 72, no 1, p. 45-56
Keywords [en]
hydrophobicity, octadecylthrichlorosilane (OTS), water vapour diffusion
National Category
Wood Science
Research subject
Technology (byts ev till Engineering), Forestry and Wood Technology
Identifiers
URN: urn:nbn:se:lnu:diva-69102DOI: 10.1515/hf-2017-0087ISI: 000418936900007OAI: oai:DiVA.org:lnu-69102DiVA, id: diva2:1163086
Available from: 2017-12-06 Created: 2017-12-06 Last updated: 2018-01-12Bibliographically approved

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Kumar, AnujAdamopoulos, Stergios

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CiteExportLink to record
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Output format
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