The investigations of elastic properties of the face and the core layer of particleboard are presented. The method of compressing the test specimens was employed. The electric resistance strain gauge technique was used to measure deformations of the test specimens. The board was treated as a plane isotropic material. The set of elastic constants, i.e. Young’s moduli, Poisson’s ratios and shear moduli were obtained. It was concluded that the particleboard layers are characterised by strong anisotropy of elastic properties.
Effects of manufacturing parameters on mechanical properties of particleboards with the core layer made from willow Salix viminalis. Three-layer experimental particleboards were prepared using the willow Salix viminalis particles for the core layer and industrial pine particles for the face layers. The press temperature (180 and 200°C), press time (4 and 6 min) and shelling ratio (0.3 and 0.4) were variable parameters. The modulus of elasticity (МОЕ), modulus of rupture (MOR), internal bond (IB) and screw holding strength (SHS) of particleboards were investigated. In general, the considered factors significantly affected the mechanical properties of particleboards.
JavaScript jest wyłączony w Twojej przeglądarce internetowej. Włącz go, a następnie odśwież stronę, aby móc w pełni z niej korzystać.