The objective of this work was to investigate the strength of particleboards made with wood of
Pinus taeda
,
Eucalyptus saligna
,
Mimosa scabrella
and
Hovenia dulcis
and mixtures in different proportions and two
board compositions. The boards were produced in mixtures of two, three and four species for monolayer
boards and proportions of the two species for multilayer boards. Panels were also produced with pure pine
wood. The adhesive used was based on urea-formaldehyde and the nominal density was 0.65 g/cm³. We
evaluated the properties of density, moisture content, static bending, internal bond and screw withdrawal.
The analyzes allowed to evaluating the use of different species wood mixtures in particleboards. The
results were also compared the requirements of applicable ANSI A 208.1. The values of static bending,
internal bond and screw withdrawal increased with increasing proportion of
Pinus taeda and
Hovenia
dulcis and decreased with increasing proportion of
Mimosa scabrella and
Eucalyptus saligna. Therefore, it
can be concluded that better species were the
Pinus taeda and
Hovenia dulcis. Regarding the composition, multilayer boards, mostly showed themselves superior to monolayer boards.