M.Sc. Tezi Görüntüleme | |||||||||||||||||||||
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| Summary: In this study, it was investigated to use waste occured in plywood industry for particleboard manufacturing as raw or additive materials. Physical, mechanical and chemical properties of particleboard manufactured from veneer pieces, residue of peeling and plywood edge pieces compared to those of manufactured from solid wood. For that purpose, it was produced two panels for each waste group in laboratory condition. Before manufacturing particleboard, thermo-hydrolyse operations were applied to solve adhesive which remains in some of plywood particles. Formaldehyde emission of testing panels were determined by perferator method and WKI bottle method as photometric, bending strength and modulus of elasticity by EN 310, tensile strength by EN 319, thickness swelling by EN 317, moisture by EN 322, specific gravity by EN 323/1.Finally, mechanical properties of particleboard produced from plywood waste met values defined in standard of TSE. All properties of the panels manufactured from plywood edge pieces were better than those of manufactured from solid wood. Also formaldehyde emission of panels manufactured from plywood waste was lower than those of manufactured from solid wood. Thickness swelling ratio of panels manufactured from plywood pieces (C, D, E groups) were lower than those of others groups. There was no different between the groups according to bending strength, but bending strength of C groups manufactured with plywood pieces was the highest. While internal bond of control and B groups was the lowest, that of the D group was the highest. Formaldehyde emission value of B group manufactured from peeling residue was lower than those of other groups. The lowest formaldehyde emission value was determined C and D groups.Keywords: Plywood Waste, Recycling, Particleboard, Mechanical and Physical Properties, Formaldehyde Emission.
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