Hydrophobization and Photo-Stabilization of Radiata Pinewood: The Effect of the Esterification on Thermal and Mechanical Properties
dc.contributor.author | Herrera Díaz, René | |
dc.contributor.author | Gordobil Goñi, Oihana | |
dc.contributor.author | De Hoyos Martínez, Pedro Luis | |
dc.contributor.author | Sandak, Anna | |
dc.contributor.author | Labidi Bouchrika, Jalel | |
dc.date.accessioned | 2021-01-05T13:06:12Z | |
dc.date.available | 2021-01-05T13:06:12Z | |
dc.date.issued | 2020-10-24 | |
dc.identifier.citation | Forests 11(12) : (2020) // Article ID 1243 | es_ES |
dc.identifier.issn | 1999-4907 | |
dc.identifier.uri | http://hdl.handle.net/10810/49644 | |
dc.description.abstract | Wood protection through chemical modification has received increasing interest over the last decades due to the environmental issues related to conventional biocides or protecting products. Consequently, a wide range of new treatments are developed in laboratories, which are later scaled up in the industrial environment. The main goal of modifying wood for indoor–outdoor application is to change its hydrophilic character, which in turn improves the intrinsic properties of the material and its durability against external factors. Wood can be esterified through its hydroxyl groups to obtain a hydrophobic and photo-stable material. Chemical modifications of Pinus radiata D. Don wood using hexanoyl chloride (P6), dodecanoyl chloride (P12), and stearoyl chloride (P18) were carried out at different concentrations. Esterification was confirmed by Fourier Transform Infrared Spectroscopy (FTIR) technique combined with a discriminatory analysis. Weight percent gain was associated with the number of carbons of the aliphatic chain of the fatty acid (P6 > P12 > P18). Moreover, an increase of wood density as a consequence of modification treatments was observed. A substantial improvement of the hydrophobicity of wood was observed by dynamic contact angle measurements. In addition, the effect of ultraviolet (UV) radiation on color changes was reduced with the treatments. Furthermore, the P6 treatment presented acceptable values of modulus of elasticity (MOE) and modulus of rupture (MOR), being suitable for similar mechanical uses as non-treated pinewood. However, only treatments P12 and P18 enhanced thermal resistance of the pinewood in an oxidative atmosphere. | es_ES |
dc.description.sponsorship | This research was funded by the Basque Government, grant number IT1008-16 and the APC was funded by the Basque Government, grant number IT1008-16. The author gratefully acknowledges the European Commission for funding the InnoRenew project [Grant Agreement # 739574] under the Horizon2020 Widespread-Teaming program, the Republic of Slovenia (investment funding of the Republic of Slovenia and the European Union European Regional Development Fund) and infrastructural ARRS program IO-0035. Part of this work was conducted during the project Multi-spec (BI-IT/18-20-007) funded by ARRS. RH is grateful to the Department of Education of the Basque Government (post-doc INGVTCL4-D00112-7) and the University of the Basque Country UPV/EHU. | es_ES |
dc.language.iso | eng | es_ES |
dc.publisher | MDPI | es_ES |
dc.relation | info:eu-repo/grantAgreement/EC/H2020/739574 | es_ES |
dc.rights | info:eu-repo/semantics/openAccess | es_ES |
dc.rights.uri | http://creativecommons.org/licenses/by/3.0/es/ | |
dc.subject | wood esterification | es_ES |
dc.subject | fatty acids | es_ES |
dc.subject | hydrophobicity | es_ES |
dc.subject | photo-stability | es_ES |
dc.subject | mechanical properties | es_ES |
dc.subject | thermal oxidation | es_ES |
dc.title | Hydrophobization and Photo-Stabilization of Radiata Pinewood: The Effect of the Esterification on Thermal and Mechanical Properties | es_ES |
dc.type | info:eu-repo/semantics/article | es_ES |
dc.date.updated | 2020-12-24T15:55:03Z | |
dc.rights.holder | 2020 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). | es_ES |
dc.relation.publisherversion | https://www.mdpi.com/1999-4907/11/12/1243/htm | es_ES |
dc.identifier.doi | 10.3390/f11121243 | |
dc.contributor.funder | European Commission | |
dc.departamentoes | Ingeniería química y del medio ambiente | |
dc.departamentoeu | Ingeniaritza kimikoa eta ingurumenaren ingeniaritza |
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Except where otherwise noted, this item's license is described as 2020 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).