Surface modification of Norway spruce wood by octadecyltrichlorosilane (OTS) nanosol by dipping and water vapour diffusion properties of the OTS-modified wood-Reference-Cited by-同舟云学术

Surface modification of Norway spruce wood by octadecyltrichlorosilane (OTS) nanosol by dipping and water vapour diffusion properties of the OTS-modified wood

Published:2017-08-21 Issue:1 Volume:72 Page:45-56
ISSN:1437-434X
Container-title:Holzforschung
language:en
Short-container-title:

Author:

Kumar Anuj¹²^ORCID,Richter Jan²³,Tywoniak Jan²³,Hajek Petr²³,Adamopoulos Stergios⁴,Šegedin Urban⁵,Petrič Marko⁵

Affiliation:

1. Department of Forestry and Wood Technology , Faculty of Technology, Linnaeus University , Lückligs Plats 1 , 351 95 Växjö , Sweden , Phone: +46 761 360 987, e-mail:

2. Department of Building Structures , Faculty of Civil Engineering, Czech Technical University in Prague , Thákurova 7 , 166 29 Praha 6 , Czech Republic

3. University Centre for Energy Efficient Buildings of Technical University in Prague , Třinecká 1024 , 273 43 Buštěhrad , Czech Republic

4. Department of Forestry and Wood Technology , Faculty of Technology, Linnaeus University , Lückligs Plats 1 , 351 95 Växjö , Sweden

5. Department of Wood Science and Technology , Biotechnical Faculty, University of Ljubljana, Jamnikarjeva , 101, 1000 Ljubljana , Slovenia

Abstract

Abstract 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.

Publisher

Walter de Gruyter GmbH

Subject

Biomaterials

Link

https://www.degruyter.com/document/doi/10.1515/hf-2017-0087/pdf

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