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

Year 2020, Volume: 4 Issue: 2, 78 - 81, 20.06.2020

Miglena Valyova Daniel Koynov

https://doi.org/10.26701/ems.532796

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.

Keywords

particleboards, urea-formaldehyde resin (UF), physical properties

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