Cargando…
Properties of Rigid Polyurethane Foam Filled with Sawdust from Primary Wood Processing
In this study, the possibility of using sawdust, a by-product of primary wood processing, as a filler (WF) for rigid polyurethane (PUR) foams was investigated. The effects of the addition of 5, 10, 15 and 20% of WF particles to the polyurethane matrix on the foaming process, cell structure and selec...
Autores principales: | , , , |
---|---|
Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2022
|
Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9369502/ https://www.ncbi.nlm.nih.gov/pubmed/35955296 http://dx.doi.org/10.3390/ma15155361 |
_version_ | 1784766480067330048 |
---|---|
author | Dukarska, Dorota Walkiewicz, Joanna Derkowski, Adam Mirski, Radosław |
author_facet | Dukarska, Dorota Walkiewicz, Joanna Derkowski, Adam Mirski, Radosław |
author_sort | Dukarska, Dorota |
collection | PubMed |
description | In this study, the possibility of using sawdust, a by-product of primary wood processing, as a filler (WF) for rigid polyurethane (PUR) foams was investigated. The effects of the addition of 5, 10, 15 and 20% of WF particles to the polyurethane matrix on the foaming process, cell structure and selected physical-mechanical properties such as density, thermal conductivity, dimensional stability, water absorption, brittleness, compressive and bending strengths were evaluated. Based on the results, it was found that the addition of WF in the amount of up to 10% does not significantly affect the kinetics of the foam foaming process, allowing the reduction of their thermal conductivity, significantly reducing brittleness and maintaining high dimensional stability. On the other hand, such an amount of WF causes a slight decrease in the compressive strength of the foam, a decrease in its bending strength and an increase in water absorption. However, it is important that in spite of the observed decrease in the values of these parameters, the obtained results are satisfactory and consistent with the parameters of insulation materials based on rigid PUR foam, currently available on the market. |
format | Online Article Text |
id | pubmed-9369502 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-93695022022-08-12 Properties of Rigid Polyurethane Foam Filled with Sawdust from Primary Wood Processing Dukarska, Dorota Walkiewicz, Joanna Derkowski, Adam Mirski, Radosław Materials (Basel) Article In this study, the possibility of using sawdust, a by-product of primary wood processing, as a filler (WF) for rigid polyurethane (PUR) foams was investigated. The effects of the addition of 5, 10, 15 and 20% of WF particles to the polyurethane matrix on the foaming process, cell structure and selected physical-mechanical properties such as density, thermal conductivity, dimensional stability, water absorption, brittleness, compressive and bending strengths were evaluated. Based on the results, it was found that the addition of WF in the amount of up to 10% does not significantly affect the kinetics of the foam foaming process, allowing the reduction of their thermal conductivity, significantly reducing brittleness and maintaining high dimensional stability. On the other hand, such an amount of WF causes a slight decrease in the compressive strength of the foam, a decrease in its bending strength and an increase in water absorption. However, it is important that in spite of the observed decrease in the values of these parameters, the obtained results are satisfactory and consistent with the parameters of insulation materials based on rigid PUR foam, currently available on the market. MDPI 2022-08-04 /pmc/articles/PMC9369502/ /pubmed/35955296 http://dx.doi.org/10.3390/ma15155361 Text en © 2022 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 Dukarska, Dorota Walkiewicz, Joanna Derkowski, Adam Mirski, Radosław Properties of Rigid Polyurethane Foam Filled with Sawdust from Primary Wood Processing |
title | Properties of Rigid Polyurethane Foam Filled with Sawdust from Primary Wood Processing |
title_full | Properties of Rigid Polyurethane Foam Filled with Sawdust from Primary Wood Processing |
title_fullStr | Properties of Rigid Polyurethane Foam Filled with Sawdust from Primary Wood Processing |
title_full_unstemmed | Properties of Rigid Polyurethane Foam Filled with Sawdust from Primary Wood Processing |
title_short | Properties of Rigid Polyurethane Foam Filled with Sawdust from Primary Wood Processing |
title_sort | properties of rigid polyurethane foam filled with sawdust from primary wood processing |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9369502/ https://www.ncbi.nlm.nih.gov/pubmed/35955296 http://dx.doi.org/10.3390/ma15155361 |
work_keys_str_mv | AT dukarskadorota propertiesofrigidpolyurethanefoamfilledwithsawdustfromprimarywoodprocessing AT walkiewiczjoanna propertiesofrigidpolyurethanefoamfilledwithsawdustfromprimarywoodprocessing AT derkowskiadam propertiesofrigidpolyurethanefoamfilledwithsawdustfromprimarywoodprocessing AT mirskiradosław propertiesofrigidpolyurethanefoamfilledwithsawdustfromprimarywoodprocessing |