Özet:

The aim of this study was to investigate some physical and mechanical properties of particle boards produced with urea formaldehyde (UF) glue with different melamine content. For this purpose, particleboard with dimensions of 8x2100x2800 mm was produced. Depending on the production formulation, adhesives with different ratios of melamine content were used on the surface and core layer in particleboard production. According to the data obtained, it was determined that the swelling ratios of the board groups decreased in the thickness of 24 hours depending on the increase in melamine content in the surface and middle layers. According to the results related to bending strength, it was determined that the bending strength properties of particleboards produced with urea-formaldehyde resins modified with melamine generally improved. When the tensile strength values were examined, it was determined that the highest tensile strength was determined in the board groups containing 2.5% melamine in the core and surface layer, while the lowest tensile strength values were determined in the board groups expressed as control group (0% melamine). Free formaldehyde emission values were found to increase with increasing melamine content.

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