SciELO - Scientific Electronic Library Online

 
vol.18 issue3Phisyological quality of Pinus elliotti Engelm. seeds subjected to differents storage methodsCharcoal anatomy of forest species author indexsubject indexarticles search
Home Pagealphabetic serial listing  

CERNE

Print version ISSN 0104-7760

Abstract

IWAKIRI, Setsuo; MATOS, Jorge Luis Monteiro de; TRIANOSKI, Rosilani  and  PRATA, José Guilherme. Production of homogeneous and multilayer particleboard from Melia azedarach (Cinamomo) AND Pinus taeda with different resin contents. CERNE [online]. 2012, vol.18, n.3, pp. 465-470. ISSN 0104-7760.  http://dx.doi.org/10.1590/S0104-77602012000300014.

This research was developed to evaluate the quality of homogeneous and multilayer particleboards manufactured from Melia azedarach wood and Pinus taeda with different resin contents. The experimental boards were manufactured with the nominal density of 0,75 g/cm3, using the urea-formaldehyde resin in the proportion of 6% and 8% (solid content based on oven dried wood particles) in the internal layer and 8% and 10% in the external layers. The boards were pressed at the specific pressure of 40 kgf/cm2 , temperature of 160ºC and press time of 8 minutes. The evaluations of the physical and mechanical properties of the boards showed the high potentiality of Melia azedarach for particleboard manufacture. The increase of resin content in the internal and external layers improved the properties of water absorption and thickness swelling. However, the mechanical properties were not affected.

Keywords : Homogeneous and multilayer panels; alternative species; resin content; urea-formaldehyde.

        · abstract in Portuguese     · text in Portuguese     · pdf in Portuguese