M.Sc. Tezi Görüntüleme

      In this study, the effects of thermal conductivity, surface roughness of rotary cut veneers obtained from beech (Fagus orientalis Lipsky), alder (Alnus glutinosa subsp. barbata ) poplar (Populus x eureamericana) and spruce (Picea orientalis L.) which are commonly used in plywood industry of Turkey, were investigated. Additionally, the effects of adhesive types, pressing time and thermal conductivity, bonding strength, bending strength and modulus of elasticity, density and equilibrium moisture content on the some of the technological properties of plywood panels were determined. The aims of the this study is to increase the productivity the manufacturing by determining optimum pressing time according to wood species and adhesive types have been using widely in our country. Generally, beech plywood panels had the highest mechanical properties and the lowest valueswere obtained for spruce plywood panels. Mechanical properties of plywood panels manufactured with MUF yielded higher values than those of panels manufactured from UF and PF. The results of thermal conductivity indicated that plywood and veneer sheets manufactured with beech yielded the lowest values while veneers manufactured with spruce and plywood manufactured with poplar yielded the highest values. In addition, the effects of pressing time on plywood panels diversed based on wood species and adhesive types.