The objective of this study was to evaluate the effect of eucalyptus grandis particles acetylation and the addition of polyethylene of low (pebd) and high density (pead) and paperboard particles in the properties particleboard. Wood particles were produced in laboratory from logs that were split into plaks, baguettes and then converted into flakes and finally transformed into particles. Paperboard and polyethylene collected in recyclable material stores and processed in a hammer mil. Acetylation was performed in autoclave with pressure and temperature control. Wood particles acetylation promoted a significant stabilization of the particleboards but decrease some mechanical properties. The addition of paperboard reduced all the mechanical properties and promoted a greater adsorption of water vapor, thickness swelling and linear expansion, for boards containing acetylated or non acetylated wood particles. The addition of polyethylene reduced the mechanical properties, specially the static bending (mor and moe), however resulted in more stable boards.
Particleboard; Acetylation; Polyethylene; Paperboard
