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Sound Insulation Performance of Furfuryl Alcohol-Modified Poplar Veneer Used in Functional Plywood

Plywood has poor sound insulation due to its insufficient areal density, which cannot satisfy the demands of an indoor acoustic environment. This report proposed to use furfuryl alcohol to impregnate poplar veneer as a raw material for plywood and explored the sound insulation potential of furfuryl...

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Autores principales: Wu, Shuangshuang, Xu, Wei
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9500761/
https://www.ncbi.nlm.nih.gov/pubmed/36143498
http://dx.doi.org/10.3390/ma15186187
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author Wu, Shuangshuang
Xu, Wei
author_facet Wu, Shuangshuang
Xu, Wei
author_sort Wu, Shuangshuang
collection PubMed
description Plywood has poor sound insulation due to its insufficient areal density, which cannot satisfy the demands of an indoor acoustic environment. This report proposed to use furfuryl alcohol to impregnate poplar veneer as a raw material for plywood and explored the sound insulation potential of furfuryl alcohol-modified poplar veneer. The effect of different formulations on the sound insulation performance of modified veneers was discussed, such as furfuryl alcohol concentrations, catalyst categories, and solvent categories. The weight percent gain (WPG) and areal density (AD) were used to evaluate the impregnation effectiveness of furfuryl alcohol modification. The sound insulation was measured by the impedance tube method. The results showed that the WPG of the furfuryl alcohol-modified veneers was evident, and the AD was effectively improved. Furthermore, the average sound insulation of furfuryl alcohol-modified poplar veneer was 25.68~40.10 dB, which increased by 10.8~19.1% compared with that of unmodified veneer. The modified veneer with 50% furfuryl alcohol concentration, taking isopropanol as a solvent, and maleic anhydride as a catalyst, had the optimal sound insulation performance. At the same time, the cell microstructure and chemical components were characterized by scanning electron microscope (SEM), Fourier-transform infrared spectroscopy (FTIR), and Brunauer–Emmett–Teller (BET) theory to explain the sound insulation mechanism further. The results showed that the distortion of cell walls was improved, suggesting a change in the mechanical properties of the cell wall. At the same time, more micropores formed since the filling of furfuryl alcohol resin, yielding a tortuous propagation pathway, so the sound insulation performance improved. Finally, it demonstrated the potential of furfuryl alcohol-modified poplar veneer as raw material to prepare plywood with excellent sound insulation.
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spelling pubmed-95007612022-09-24 Sound Insulation Performance of Furfuryl Alcohol-Modified Poplar Veneer Used in Functional Plywood Wu, Shuangshuang Xu, Wei Materials (Basel) Article Plywood has poor sound insulation due to its insufficient areal density, which cannot satisfy the demands of an indoor acoustic environment. This report proposed to use furfuryl alcohol to impregnate poplar veneer as a raw material for plywood and explored the sound insulation potential of furfuryl alcohol-modified poplar veneer. The effect of different formulations on the sound insulation performance of modified veneers was discussed, such as furfuryl alcohol concentrations, catalyst categories, and solvent categories. The weight percent gain (WPG) and areal density (AD) were used to evaluate the impregnation effectiveness of furfuryl alcohol modification. The sound insulation was measured by the impedance tube method. The results showed that the WPG of the furfuryl alcohol-modified veneers was evident, and the AD was effectively improved. Furthermore, the average sound insulation of furfuryl alcohol-modified poplar veneer was 25.68~40.10 dB, which increased by 10.8~19.1% compared with that of unmodified veneer. The modified veneer with 50% furfuryl alcohol concentration, taking isopropanol as a solvent, and maleic anhydride as a catalyst, had the optimal sound insulation performance. At the same time, the cell microstructure and chemical components were characterized by scanning electron microscope (SEM), Fourier-transform infrared spectroscopy (FTIR), and Brunauer–Emmett–Teller (BET) theory to explain the sound insulation mechanism further. The results showed that the distortion of cell walls was improved, suggesting a change in the mechanical properties of the cell wall. At the same time, more micropores formed since the filling of furfuryl alcohol resin, yielding a tortuous propagation pathway, so the sound insulation performance improved. Finally, it demonstrated the potential of furfuryl alcohol-modified poplar veneer as raw material to prepare plywood with excellent sound insulation. MDPI 2022-09-06 /pmc/articles/PMC9500761/ /pubmed/36143498 http://dx.doi.org/10.3390/ma15186187 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
Wu, Shuangshuang
Xu, Wei
Sound Insulation Performance of Furfuryl Alcohol-Modified Poplar Veneer Used in Functional Plywood
title Sound Insulation Performance of Furfuryl Alcohol-Modified Poplar Veneer Used in Functional Plywood
title_full Sound Insulation Performance of Furfuryl Alcohol-Modified Poplar Veneer Used in Functional Plywood
title_fullStr Sound Insulation Performance of Furfuryl Alcohol-Modified Poplar Veneer Used in Functional Plywood
title_full_unstemmed Sound Insulation Performance of Furfuryl Alcohol-Modified Poplar Veneer Used in Functional Plywood
title_short Sound Insulation Performance of Furfuryl Alcohol-Modified Poplar Veneer Used in Functional Plywood
title_sort sound insulation performance of furfuryl alcohol-modified poplar veneer used in functional plywood
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9500761/
https://www.ncbi.nlm.nih.gov/pubmed/36143498
http://dx.doi.org/10.3390/ma15186187
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