Potential usage of the urban pruning residue for production of wood based panels

Abstract

The purpose of this paper was to verify the utilization potential of urban pruning residue from the woods of Licania tomentosa, Schinus molle and Tibouchina granulosa for the production of wood based panels. The materials were collected from the city of Jataí, Goiás, Brazil. The basic density and chemical analyses of these materials were evaluated. Subsequently, 3 wood based panels of each studied species were produced. The nominal density of these panels was of 0.60g/cm³, dimensions of 25 x 25 x 1.5 cm. The adhesive used was urea formaldehyde at 8% based on its content of resinous solids. The pressing cycle used will be of nominal pressure of 4.0 MPa, temperature of 160 °C and time of 15 minutes. The absorption and thickness swelling properties after 2 and 24 hours of immersion in water, apparent density, perpendicular traction and flexural strength were evaluation. The design used was entirely randomized, using the Scott-Knott average test at 5% significance. It may be concluded that the materials used for production of the panels presented basic density and proper chemical analysis characteristics for the production of wood based panels. The residue which presented greatest potential of usage for production of wood based boards was the species Schinus molle.