INFLUENCE OF COMBINED HEAT TREATMENT AND DENSIFICATION ON MECHANICAL PROPERTIES OF POPLAR WOOD

被引：19
|
作者：
Sozbir, Gonca Duzkale [1 ]
Bektas, Ibrahim [1 ]
Ak, Aysenur Kilic [1 ]
机构：
[1] Kahramanmaras Sutcu Imam Univ, Fac Forest, Deparment Forest Ind Engn, Kahramanmaras, Turkey
来源：
MADERAS-CIENCIA Y TECNOLOGIA | 2019年 / 21卷 / 04期
关键词：
Bending strenght; compression strength; density; EMC; Populus usbekistanica; TECHNOLOGICAL PROPERTIES; THERMAL-TREATMENT; HIGH-TEMPERATURE; PINE; COMPRESSION; STRENGTH;
D O I：
10.4067/S0718-221X2019005000405
中图分类号：
TB3 [工程材料学]; TS [轻工业、手工业、生活服务业];
学科分类号：
0805 ; 080502 ; 0822 ;
摘要：
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 120 degrees C, 160 degrees C and 200 degrees C for 1 and 3h. After the heat treatment, the heat treated samples were compressed in a hot press at a temperature of 120 degrees C, 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.
引用
收藏
页码：481 / 492
页数：12
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