Document Type : Research Paper

Authors

• Abolfazl Kargarfard ¹
• Amir Nourbakhsh ²
• Reza Hajihassani ³

¹ Wood and Forest Products Science Research Division, Research Institute of Forests and Rangelands, Tehran, Iran,

² Ph.D., Wood and Paper Science Research Division, Research Institute of Forests and Rangelands , Iran,

³ PhD, Wood and forest products division, Research Institute of Forests and Rangelands, Agricultural Research Education and Extension Organization (AREEO), Tehran, Iran

Abstract

In this investigation, the influence of press temperature and press time on MDF properties made from Eucalyptus wood (Eucalyptus intertexta sp.) have been studied. Variable factors were steaming time (in two levels: 5 and 10 minutes), press temprature (in two levels: 180 and 190 °^C ) and press time (in three levels: 3, 3.5 and 4 minutes).   
The results of this study indicated that the effect of steaming time on MOR had been significant, the highest MOR were obtained 14.62 Mpa in MDF boards that produced in 5 minutes steaming time. Also the MOR of boards were increased with ascending of press temperature. The results also showed that the effect of press temperature on MOE had been significant and MOE of boards were increased with ascending of press temperature.
The results revealed that increasing of steaming time and press time had been negative effect on IB. on the other hand press time  had a significant effect on  thickness swelling as the minimom of thickness swelling had obtained in 3 minutes press time.
 
 

Keywords

• MEDIUM DENSITY FIBERBOARD
• EUCALYPTUS INTERTEXTA
• Temprature time
• press time
• Physical & Mechanical Properties

Main Subjects

• Composite wood products