Yazar "Yorur, H." seçeneğine göre listele

Listeleniyor 1 - 2 / 2
  • Küçük Resim Yok
    Öğe
    The effects of cast-polyamide on the modulus of rupture and modulus elasticity of oriented strength board (OSB) Manufactured from Scotch Pine
    (Faculty of Forestry, Zagreb University, 2013) Yorur, H.; Yapici, F.; Esen, R.
    This study was carried out to determine the effects of using cast-polyamide on modulus of rupture (MOR) and modulus elasticity (MOE) of oriented strand board (OSB) which were produced in four different conditions. Firstly, control panels were manufactured, and also OSB panels produced by adding cast-polyamide with 20 % - 30 % ratio compare with weight of oven dry wood particle both out layer and inner layer. Phenol formaldehyde was used at 6 % ratio. Strands were used to the production of panels made up 50 % of core layer and 50 % of outer layers. Test panels were pressed in 6 min., 40 kg/cm2 press pressure and 185±3°C press temperature by aiming for a target density of 0.67 g/cm3. The values of modulus of rupture and modulus elasticity were determined by using according to related standard.
  • Küçük Resim Yok
    Öğe
    Utilization of Waste Polyethylene and its Effects on Physical and Mechanical Properties of Oriented Strand Board
    (North Carolina State University, 2016) Yorur, H.
    The effect of adding waste polyethylene (WPE) was investigated at various ratios on some physical and mechanical properties of oriented strand board (OSB) panels. All of the test panels were bonded with 6% phenolformaldehyde resin in three layers. The manufacturing parameters was 0/100, 10/90, 20/80, 30/70, 40/60, and 50/50 by weight% of WPE/wood strand. All the boards were manufactured to achieve targeted specific gravity of 0.65 g/cm3. Polyethylene improved the water resistance of the OSB panels because of its hydrophobicity. Based on the results of this study, thickness swelling, humidity, dimensional stability, water absorption, and screw withdrawal resistance of the samples were improved significantly. However, MOE, MOR, and internal bond strength values of the samples decreased with increasing WPE in the panels when compared to the control panels but met minimum requirements in EN 300 (type 1-23-4) control panels. The conclusion was reached that waste polyethylene can be used in the manufacture of OSB panels, resulting in the enhancement of above mentioned physical and mechanical properties, as well as a safe disposal and economical utilization. © 2016. All Rights Reserved.