Influence Of Pressing Time On Physical And Mechanical Properties Of Particleboards Made From Scots Pine (Pinus sylvestris L.)

Abstract

This study presents the results of investigations on some physical and mechanical properties of one-layer particleboards made from Scots pine (Pinus sylvestris L.). The size and the ratio of the using particles were: 0.5-1 mm- 20 %, 1-3 mm- 60 % and 3-5 mm-20 %, respectively. Urea-formaldehyde resin was used as a binder. The effect of different pressing time- 15, 30, 60 and 90 s.mm-1 on the some properties, such as: density, moisture content, water absorption, thickness swelling and bending strength according to appropriate standards was evaluated. The best results were observed at pressing time of 60 and 90 s.mm-1. The particleboards obtained under these conditions can be used in the furniture industry.