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Waste Wood Particles from Primary Wood Processing as a Filler of Insulation PUR Foams

A significant part of the work carried out so far in the field of production of biocomposite polyurethane foams (PUR) with the use of various types of lignocellulosic fillers mainly concerns rigid PUR foams with a closed-cell structure. In this work, the possibility of using waste wood particles (WP...

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Autores principales: Mirski, Radosław, Dukarska, Dorota, Walkiewicz, Joanna, Derkowski, Adam
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8432465/
https://www.ncbi.nlm.nih.gov/pubmed/34500871
http://dx.doi.org/10.3390/ma14174781
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author Mirski, Radosław
Dukarska, Dorota
Walkiewicz, Joanna
Derkowski, Adam
author_facet Mirski, Radosław
Dukarska, Dorota
Walkiewicz, Joanna
Derkowski, Adam
author_sort Mirski, Radosław
collection PubMed
description A significant part of the work carried out so far in the field of production of biocomposite polyurethane foams (PUR) with the use of various types of lignocellulosic fillers mainly concerns rigid PUR foams with a closed-cell structure. In this work, the possibility of using waste wood particles (WP) from primary wood processing as a filler for PUR foams with open-cell structure was investigated. For this purpose, a wood particle fraction of 0.315–1.25 mm was added to the foam in concentrations of 0, 5, 10, 15 and 20%. The foaming course of the modified PUR foams (PUR-WP) was characterized on the basis of the duration of the process’ successive stages at the maximum foaming temperature. In order to explain the observed phenomena, a cellular structure was characterized using microscopic analysis such as SEM and light microscope. Computed tomography was also applied to determine the distribution of wood particles in PUR-WP materials. It was observed that the addition of WP to the open-cell PUR foam influences the kinetics of the foaming process of the PUR-WP composition and their morphology, density, compressive strength and thermal properties. The performed tests showed that the addition of WP at an the amount of 10% leads to the increase in the PUR foam’s compressive strength by 30% (parallel to foam’s growth direction) and reduce the thermal conductivity coefficient by 10%.
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spelling pubmed-84324652021-09-11 Waste Wood Particles from Primary Wood Processing as a Filler of Insulation PUR Foams Mirski, Radosław Dukarska, Dorota Walkiewicz, Joanna Derkowski, Adam Materials (Basel) Article A significant part of the work carried out so far in the field of production of biocomposite polyurethane foams (PUR) with the use of various types of lignocellulosic fillers mainly concerns rigid PUR foams with a closed-cell structure. In this work, the possibility of using waste wood particles (WP) from primary wood processing as a filler for PUR foams with open-cell structure was investigated. For this purpose, a wood particle fraction of 0.315–1.25 mm was added to the foam in concentrations of 0, 5, 10, 15 and 20%. The foaming course of the modified PUR foams (PUR-WP) was characterized on the basis of the duration of the process’ successive stages at the maximum foaming temperature. In order to explain the observed phenomena, a cellular structure was characterized using microscopic analysis such as SEM and light microscope. Computed tomography was also applied to determine the distribution of wood particles in PUR-WP materials. It was observed that the addition of WP to the open-cell PUR foam influences the kinetics of the foaming process of the PUR-WP composition and their morphology, density, compressive strength and thermal properties. The performed tests showed that the addition of WP at an the amount of 10% leads to the increase in the PUR foam’s compressive strength by 30% (parallel to foam’s growth direction) and reduce the thermal conductivity coefficient by 10%. MDPI 2021-08-24 /pmc/articles/PMC8432465/ /pubmed/34500871 http://dx.doi.org/10.3390/ma14174781 Text en © 2021 by the authors. https://creativecommons.org/licenses/by/4.0/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/).
spellingShingle Article
Mirski, Radosław
Dukarska, Dorota
Walkiewicz, Joanna
Derkowski, Adam
Waste Wood Particles from Primary Wood Processing as a Filler of Insulation PUR Foams
title Waste Wood Particles from Primary Wood Processing as a Filler of Insulation PUR Foams
title_full Waste Wood Particles from Primary Wood Processing as a Filler of Insulation PUR Foams
title_fullStr Waste Wood Particles from Primary Wood Processing as a Filler of Insulation PUR Foams
title_full_unstemmed Waste Wood Particles from Primary Wood Processing as a Filler of Insulation PUR Foams
title_short Waste Wood Particles from Primary Wood Processing as a Filler of Insulation PUR Foams
title_sort waste wood particles from primary wood processing as a filler of insulation pur foams
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8432465/
https://www.ncbi.nlm.nih.gov/pubmed/34500871
http://dx.doi.org/10.3390/ma14174781
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