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Use of babaçu staple fiber as alternative raw material for panel production

The objective of this work was to evaluate the use of babaçu (Orbignya spp) fiber (epicarp) in combination with particles of Pinus elliottii at different ratios in particleboard manufacturing, as well as evaluating the effect of different adhesive contents. The boards were pressed at 160 ºC, using two resin levels - 6% and 8% (particle dry weight basis) and 10 min pressing time, totaling eight treatments, tree repetitions per treatment, totaling twenty four boards, with 0.70 g/cm³ nominal density. The evaluated properties were as follows: Static bending - modulus of rupture (MOR) and modulus of elasticity (MOE); Internal bond; Dimensional stability - thickness swelling (IE) 2 and 24 hours and water absorption (AA) 2 and 24 hours, according to ASTM D 1037-91. The increase in babaçu fiber content combined with the increase in resin content contributed to the reduction in thickness swelling and water absorption. The increase in resin content from 6 to 8% was fundamental to improve thickness swelling properties, water absorption, module of rupture and module of elasticity. Using up to 30% of babaçu fibers in the panel composition resulted in MOR values above the limit established by CS 236-66.

particleboards; coconut shell; adhesive; babaçu


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