Effect of expanded polystyrene content and press temperature on the properties of low-density wood particleboard

Abstract: In this study, three-layer low-density (about 400 kg/m3) particleboards consisting of a mixture of wood particles and expanded polystyrene (EPS) were manufactured. EPS bead was incorporated in the core layer as a light filler. The influence of EPS content (0 %, 2,5 %, 5 %, 7,5 %, 10 %, and...

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Autores principales:	Luo,Shupin, Gao,Li, Guo,Wenjing
Lenguaje:	English
Publicado:	Universidad del Bío-Bío 2020
Materias:	Density profile expanded polystyrene (EPS) low-density particleboard mechanical properties microstructure press temperature.
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-221X2020000400549
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spelling	oai:scielo:S0718-221X20200004005492020-10-07Effect of expanded polystyrene content and press temperature on the properties of low-density wood particleboardLuo,ShupinGao,LiGuo,Wenjing Density profile expanded polystyrene (EPS) low-density particleboard mechanical properties microstructure press temperature. Abstract: In this study, three-layer low-density (about 400 kg/m3) particleboards consisting of a mixture of wood particles and expanded polystyrene (EPS) were manufactured. EPS bead was incorporated in the core layer as a light filler. The influence of EPS content (0 %, 2,5 %, 5 %, 7,5 %, 10 %, and 12,5 %) and press temperature (110 °C and 140 °C) on the microstructure, density profile, bending properties, internal bond and thickness swelling of the panels were investigated. Results showed that incorporation of EPS beads filled in the voids between wood particles improved the core layer integrity, and generated a more pronounced density profile. Consequently, the bending properties and internal bond of panels adding EPS were remarkably improved, and the thickness swelling was decreased. However, the variation of the number of EPS from 2,5 % to 12,5 % had no significant effect on the bending properties and thickness swelling. Comparing the two press temperatures, higher temperature (140 °C) was more favourable in control panels without EPS as filler. For panels adding EPS filler, 140 °C had a negative effect on the properties of panels, especially at high EPS contents (10% and 12,5%), attributing to the shrinkage of EPS bead under press temperature that is much higher than its glass transition temperature (104 °C).info:eu-repo/semantics/openAccessUniversidad del Bío-BíoMaderas. Ciencia y tecnología v.22 n.4 20202020-10-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-221X2020000400549en10.4067/S0718-221X2020005000413
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Density profile expanded polystyrene (EPS) low-density particleboard mechanical properties microstructure press temperature.
spellingShingle	Density profile expanded polystyrene (EPS) low-density particleboard mechanical properties microstructure press temperature. Luo,Shupin Gao,Li Guo,Wenjing Effect of expanded polystyrene content and press temperature on the properties of low-density wood particleboard
description	Abstract: In this study, three-layer low-density (about 400 kg/m3) particleboards consisting of a mixture of wood particles and expanded polystyrene (EPS) were manufactured. EPS bead was incorporated in the core layer as a light filler. The influence of EPS content (0 %, 2,5 %, 5 %, 7,5 %, 10 %, and 12,5 %) and press temperature (110 °C and 140 °C) on the microstructure, density profile, bending properties, internal bond and thickness swelling of the panels were investigated. Results showed that incorporation of EPS beads filled in the voids between wood particles improved the core layer integrity, and generated a more pronounced density profile. Consequently, the bending properties and internal bond of panels adding EPS were remarkably improved, and the thickness swelling was decreased. However, the variation of the number of EPS from 2,5 % to 12,5 % had no significant effect on the bending properties and thickness swelling. Comparing the two press temperatures, higher temperature (140 °C) was more favourable in control panels without EPS as filler. For panels adding EPS filler, 140 °C had a negative effect on the properties of panels, especially at high EPS contents (10% and 12,5%), attributing to the shrinkage of EPS bead under press temperature that is much higher than its glass transition temperature (104 °C).
author	Luo,Shupin Gao,Li Guo,Wenjing
author_facet	Luo,Shupin Gao,Li Guo,Wenjing
author_sort	Luo,Shupin
title	Effect of expanded polystyrene content and press temperature on the properties of low-density wood particleboard
title_short	Effect of expanded polystyrene content and press temperature on the properties of low-density wood particleboard
title_full	Effect of expanded polystyrene content and press temperature on the properties of low-density wood particleboard
title_fullStr	Effect of expanded polystyrene content and press temperature on the properties of low-density wood particleboard
title_full_unstemmed	Effect of expanded polystyrene content and press temperature on the properties of low-density wood particleboard
title_sort	effect of expanded polystyrene content and press temperature on the properties of low-density wood particleboard
publisher	Universidad del Bío-Bío
publishDate	2020
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-221X2020000400549
work_keys_str_mv	AT luoshupin effectofexpandedpolystyrenecontentandpresstemperatureonthepropertiesoflowdensitywoodparticleboard AT gaoli effectofexpandedpolystyrenecontentandpresstemperatureonthepropertiesoflowdensitywoodparticleboard AT guowenjing effectofexpandedpolystyrenecontentandpresstemperatureonthepropertiesoflowdensitywoodparticleboard
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Effect of expanded polystyrene content and press temperature on the properties of low-density wood particleboard

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