Wood Flour Modified by Poly(furfuryl alcohol) as a Filler in Rigid Polyurethane Foams: Effect on Water Uptake
dc.contributor.author | Acosta, Andrey | |
dc.contributor.author | Aramburu, Arthur B. | |
dc.contributor.author | Beltrame, Rafael | |
dc.contributor.author | Gatto, Darci A. | |
dc.contributor.author | Amico, Sandro | |
dc.contributor.author | Labidi Bouchrika, Jalel | |
dc.contributor.author | De Avila Delucis, Rafael | |
dc.date.accessioned | 2023-01-12T15:39:12Z | |
dc.date.available | 2023-01-12T15:39:12Z | |
dc.date.issued | 2022-12-16 | |
dc.identifier.citation | Polymers 14(24) : (2022) // Article ID 5510 | es_ES |
dc.identifier.issn | 2073-4360 | |
dc.identifier.uri | http://hdl.handle.net/10810/59266 | |
dc.description.abstract | The use of lignocellulosic fillers in rigid polyurethane foams (RPUFs) has been receiving great attention due to their good mechanical and insulation properties and the high sustainable appeal of the obtained cellular polymers, although high water uptakes are found in most of these systems. To mitigate this detrimental effect, RPUFs filled with wood flour (2.5% wt) were fabricated with the addition of furfuryl alcohol (FA) to create a polymer grafted with the wood filler. Two concentrations of FA (10 wt% and 15 wt%) were investigated in relation to the wood flour, and the RPUFs were characterized for cell morphology, density, compressive properties, thermal stability, and water uptake. The introduction of wood flour as a filler decreased the cell size and increased the anisotropy index of the RPUFs and, in addition to that, the FA grafting increased these effects even more. In general, there were no significant changes in both mechanical and thermal properties ascribed to the incorporation of the fillers. On the other hand, a reduction of up to 200% in water uptake was ascribed to the FA-treated fillers. | es_ES |
dc.description.sponsorship | This work was supported by the Coordination for the Improvement of Higher Education—CAPES (code 001), the National Council for Scientific and Technological Development—CNPq (Financial code 301758/2019-0) and the University of Basque Country (COLAB20/04). | es_ES |
dc.language.iso | eng | es_ES |
dc.publisher | MDPI | es_ES |
dc.rights | info:eu-repo/semantics/openAccess | es_ES |
dc.rights.uri | http://creativecommons.org/licenses/by/4.0/ | |
dc.subject | polyurethane foam | es_ES |
dc.subject | furfuryl alcohol | es_ES |
dc.subject | water uptake | es_ES |
dc.subject | wood flour | es_ES |
dc.title | Wood Flour Modified by Poly(furfuryl alcohol) as a Filler in Rigid Polyurethane Foams: Effect on Water Uptake | es_ES |
dc.type | info:eu-repo/semantics/article | es_ES |
dc.date.updated | 2022-12-22T14:36:01Z | |
dc.rights.holder | © 2022 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 (https://creativecommons.org/licenses/by/ 4.0/). | es_ES |
dc.relation.publisherversion | https://www.mdpi.com/2073-4360/14/24/5510 | es_ES |
dc.identifier.doi | 10.3390/polym14245510 | |
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 © 2022 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 (https://creativecommons.org/licenses/by/ 4.0/).