engleski

Bark, What Can We Do With It, What Is It Good For

A material long waiting for its implementation for wood-based products is bark. Although bark constitutes between 10 % to 20 % of total tree volume its usability is limited. In present research we investigated the possibility to use bark for particleboard production, either as furniture grade material or as thermal insulation material. In two stage experiment where single layer particleboards with different target density (0.65 g·cm-3 and 0.5 g·cm-3), with different share of bark (10% to 80 %) were produced and evaluated. Results of experiment showed that thermal conductivity of boards with bark was lower, compard to board without bark. Increase in bark share resulted in thermal conductivity decrease. Bending strength and internal bond of board with 10 % bark were higher that of board composed only from wood particles. Modulus of elasticity decreased with increasing the bark share.

bark ; bending strength ; modulus of elasticity ; particleboard ; internal bond ; thickness swelling ; thermal conductivity

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