Influence of combined heat treatment and densification on mechanical properties of poplar wood

In this study, influence of combined heat treatment and densification on mechanical properties of poplar wood (Populus usbekistanica) such as density, EMC, compression strength, modulus of elasticy, modulus of rupture and static bending strength were investigated. Poplar samples were subjected to a...

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Bibliographic Details
Published in:Maderas 2019, Vol.21 (ahead), p.481-492
Main Authors: Sözbir, Gonca Düzkale, Bektas, Ibrahim, Ak, Aysenur Kilic
Format: Article
Language:English
Subjects:
Densification
Heat treatment
MATERIALS SCIENCE, PAPER & WOOD
Mechanical properties
Poplar wood
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Summary:In this study, influence of combined heat treatment and densification on mechanical properties of poplar wood (Populus usbekistanica) such as density, EMC, compression strength, modulus of elasticy, modulus of rupture and static bending strength were investigated. Poplar samples were subjected to a temperature of 120oC, 160oC and 200oC for 1 and 3h. After the heat treatment, the heat treated samples were compressed in a hot press at a temperature of 120oC, press pressure of 5 MPa and press time of 30 minutes for densification. The results showed that the heat treatment affected the densification with increasing density. Additionally, the heat treatment decreased modulus of rupture (MOR), modulus of elasticity (MOE) and impact bending strength (IBS) with increasing temperature for undensified poplar wood. In conclusion, densification process has improved all the mechanical tested properties.
ISSN:0718-221X
0717-3644
0718-221X
DOI:10.4067/S0718-221X2019005000405