Abstract
This study aimed to evaluate the quality of particleboard panels made with wood from Pinus caribaea var. caribaea and Pinus caribaea var. bahamensis, as obtained from forest stands. Experimental panels were produced with a nominal density of 0.70 g/cm³, using urea-formaldehyde resin and wood particles of Pinus caribaea var. caribaea and Pinus caribaea var. bahamensis, at rates of 100%x0%, 75%x25%, 50%x50%, 25%x75% and 0%x100%. Pinus taeda wood was used as control sample. Panels were compressed at a specific pressure of 40 kgf/cm² and temperature of 160ºC, for 8 minutes. Analysis results of water absorption, thickness swell, internal bond, modulus of elasticity and modulus of rupture properties indicated feasibility of using wood from Pinus caribaea var. caribaea and Pinus caribaea var. bahamensis for production of particleboard panels, individually or combined at rates of 75%, 50% and 25%.
Highlights
Pinus caribaea is a pine species that comprises three natural varieties, namely caribaea, bahamensis and hondurensis
Wood of Pinus taeda was obtained in the form of fragments from Berneck S/A Painéis e Serrados, a particleboard panel manufacturer located in the municipality of Araucária, Paraná state
- the compaction ratio of particleboard panels made with the two varieties of P. caribaea and with both combined significantly influenced some thickness swell and internal bond results
Summary
Pinus caribaea is a pine species that comprises three natural varieties, namely caribaea, bahamensis and hondurensis. They are native to Central America Central, naturally occurring in Mexico, Cuba, Bahamas, Belize, Guatemala, Nicaragua and some other local islands, at altitudes ranging from sea level to 1,000 m. All Pinus caribaea varieties have great potential for use in reforestations of frost-free, hot climate zones, being extensively researched in various regions across the globe for reasons that include pursuit of superior wood quality and production optimization. The wood of Pinus caribaea is suitable for production of sawnwood, laminations, plywood, particleboard and MDF
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