Effects of Some Chemical Pre-Treatments on Some Physical and Mechanical Properties of Particleboard Manufactured From Vine Pruning

Bazı Kimyasal Ön İşlemlerin Asma Budama Atıklarından Üretilen Yongalevhaların Fiziksel ve Mekanik Özellikleri Üzerine Etkisi

Abstract

This study examined the effects of some pre-treatments on some physical and mechanical properties ofparticleboard manufactured from vine pruning. Chips that were produced from vine pruning were subjected tosome pre-treatments namely cold water, 1 % sodium hydroxide, and 1 % acetic acid in order to improve theirperformance in particleboard manufacturing. One-layer experimental particleboards with density of 0.5 g/cm3were manufactured from vine pruning using 6,8,10 % percent of urea formaldehyde (UF) adhesive. Modulus ofelasticity (MOE), modulus of rupture (MOR), internal bond strength (IB), thickness swelling (TS) and waterabsorption properties of the boards were evaluated, and a statistical analysis was performed in order to evaluateeffects of pre-treatments on physical and mechanical properties. The results have shown that pre-treatmentsincrease bending and internal bond strength of the boards while no significant effects has been observed onmodulus of elasticity. The results also indicate that pre-treatments have significant effects on water absorptionvalues of the boards but not on thickness swelling of the boards. This study demonstrates that vine pruning canbe more efficiently used in particleboard manufacturing.

Özet

Bu çalışmada asma (Vitis vinifera L.) budama atıklarından elde edilen yongalar soğuk su, % 1’lik NaOH ile