Influence of combined hygro-thermo-mechanical treatment on technical characteristics of poplar wood

Abstract: Combined hygro-thermo-mechanical technique was adopted and used for densification of poplar wood instead of sole treatment. This technique is combination of two techniques of hygrothermal treatment and densification of wood. For treatment, poplar wood blocks were initially treated hygrothe...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Hajihassani,Reza, Mohebby,Behbood, Najafi,Saeed Kazemi, Navi,Parviz
Lenguaje:	English
Publicado:	Universidad del Bío-Bío 2018
Materias:	Compression set hygrothermal treatment mechanical properties physical properties Populus deltoides wood densification
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-221X2018000100117
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:scielo:S0718-221X2018000100117
record_format	dspace
spelling	oai:scielo:S0718-221X20180001001172018-09-25Influence of combined hygro-thermo-mechanical treatment on technical characteristics of poplar woodHajihassani,RezaMohebby,BehboodNajafi,Saeed KazemiNavi,Parviz Compression set hygrothermal treatment mechanical properties physical properties Populus deltoides wood densification Abstract: Combined hygro-thermo-mechanical technique was adopted and used for densification of poplar wood instead of sole treatment. This technique is combination of two techniques of hygrothermal treatment and densification of wood. For treatment, poplar wood blocks were initially treated hygrothermally at temperatures of 130, 150 and 170°C for holding time of 20, 40 minutes. Afterwards, the densification process was carried out under a hot press (temperature 160°C for 20 minutes). For densification compression set was adjusted for 40 and 60 % based on the initial thickness (radial direction) of the blocks. The densified and non-densified wood blocks were tested for physical and mechanical properties as density, water absorption, thickness swelling, springback, bending strength, modulus of elasticity as well as shear strength parallel to grain. Results revealed that wood properties were enhanced due to the combined hygro-thermo-mechanical -treatment. According to the results, wood density was increased due to the combined hygro-thermo-mechanical -treatment significantly. The treatment improved the dimensional stability of the densified samples. It was also found that the combined hygro-thermo-mechanical -treatment could significantly improve mechanical properties and also reduce the springback in the densified poplar wood.info:eu-repo/semantics/openAccessUniversidad del Bío-BíoMaderas. Ciencia y tecnología v.20 n.1 20182018-01-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-221X2018000100117en10.4067/S0718-221X2018005011001
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Compression set hygrothermal treatment mechanical properties physical properties Populus deltoides wood densification
spellingShingle	Compression set hygrothermal treatment mechanical properties physical properties Populus deltoides wood densification Hajihassani,Reza Mohebby,Behbood Najafi,Saeed Kazemi Navi,Parviz Influence of combined hygro-thermo-mechanical treatment on technical characteristics of poplar wood
description	Abstract: Combined hygro-thermo-mechanical technique was adopted and used for densification of poplar wood instead of sole treatment. This technique is combination of two techniques of hygrothermal treatment and densification of wood. For treatment, poplar wood blocks were initially treated hygrothermally at temperatures of 130, 150 and 170°C for holding time of 20, 40 minutes. Afterwards, the densification process was carried out under a hot press (temperature 160°C for 20 minutes). For densification compression set was adjusted for 40 and 60 % based on the initial thickness (radial direction) of the blocks. The densified and non-densified wood blocks were tested for physical and mechanical properties as density, water absorption, thickness swelling, springback, bending strength, modulus of elasticity as well as shear strength parallel to grain. Results revealed that wood properties were enhanced due to the combined hygro-thermo-mechanical -treatment. According to the results, wood density was increased due to the combined hygro-thermo-mechanical -treatment significantly. The treatment improved the dimensional stability of the densified samples. It was also found that the combined hygro-thermo-mechanical -treatment could significantly improve mechanical properties and also reduce the springback in the densified poplar wood.
author	Hajihassani,Reza Mohebby,Behbood Najafi,Saeed Kazemi Navi,Parviz
author_facet	Hajihassani,Reza Mohebby,Behbood Najafi,Saeed Kazemi Navi,Parviz
author_sort	Hajihassani,Reza
title	Influence of combined hygro-thermo-mechanical treatment on technical characteristics of poplar wood
title_short	Influence of combined hygro-thermo-mechanical treatment on technical characteristics of poplar wood
title_full	Influence of combined hygro-thermo-mechanical treatment on technical characteristics of poplar wood
title_fullStr	Influence of combined hygro-thermo-mechanical treatment on technical characteristics of poplar wood
title_full_unstemmed	Influence of combined hygro-thermo-mechanical treatment on technical characteristics of poplar wood
title_sort	influence of combined hygro-thermo-mechanical treatment on technical characteristics of poplar wood
publisher	Universidad del Bío-Bío
publishDate	2018
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-221X2018000100117
work_keys_str_mv	AT hajihassanireza influenceofcombinedhygrothermomechanicaltreatmentontechnicalcharacteristicsofpoplarwood AT mohebbybehbood influenceofcombinedhygrothermomechanicaltreatmentontechnicalcharacteristicsofpoplarwood AT najafisaeedkazemi influenceofcombinedhygrothermomechanicaltreatmentontechnicalcharacteristicsofpoplarwood AT naviparviz influenceofcombinedhygrothermomechanicaltreatmentontechnicalcharacteristicsofpoplarwood
_version_	1714202656604422144

Influence of combined hygro-thermo-mechanical treatment on technical characteristics of poplar wood

Ejemplares similares