MDP panels produced with pulp extraction residues

Abstract

Many alternatives have been studied on the use of agricultural, agroindustrial and forest residues in the production of particleboard in an attempt to take advantage of the residues from these branches, which often generate environmental problems due to their incorrect destination. Thus, the objective of this work was to evaluate the potential of the waste generated during the pulp production process (UKP) in the manufacture of MDP panels. The proportions used for the replacement of Pinus oocarpa wood by the residue were 0, 15, 30, 45 and 60% (by mass), using the urea-formaldehyde binder. The apparent density (DA), water absorption after two and twenty four hours of immersion (AA2h and AA24h), thickness swelling after two and twenty four hours of immersion (IE2h and IE24h), internal LI), and modulus of elasticity (MOE) and modulus of rupture (MOR) to static bending. The use of UKP residue particles for the production of MDP panels proved to be detrimental since it resulted in a decrease in mechanical properties and an increase in water absorption values and thickness swelling.