NUNES, S. T.; NUNES, Shirley Tavares.
Résumé:
This work aimed to produce homogeneous layer particleboards with
residues of Pinus elliottii wood adhered with polyurethane adhesive to castor oil plant
base and to evaluate the effect of the pressure and temperature in the quality of the
particleboards produced. For so much, 12 particleboards were manufactured,
subdivided in four treatments in function of the pressure (2.0; 3.0; 3.5; and 3.5 MPa)
and temperature (90; 90; 50; and 60 ºC). The particleboards were shredded in test
samples, and accomplished physical-mechanical tests for determination of density,
swelling and absorption of water (ten repetitions for treatment); rupture module and
elasticity module in static bending, tension perpendicular to surface or connection
Interns and screw withdrawal (21 repetitions for treatment). The particleboards
pressed with pressure of 3.0 MPa and temperature of 90 ºC and that with pressure of
3.5 MPa and temperature of 60 ºC presented satisfactory results.
