Inclusão de resíduo da cultura de sorgo em painéis aglomerados de eucalipto

José Benedito Guimarães Junior; Michele Mantelli Xavier; Thamara Silva Santos; Thiago de Paula Protásio; Rafael Farinassi Mendes; Lourival Marin Mendes

doi:10.4336/2016.pfb.36.88.1036

Addition of sorghum culture waste in eucalyptus particleboards

Authors

José Benedito Guimarães Junior Federal University of Lavras
Michele Mantelli Xavier Federal University of Goiás
Thamara Silva Santos Federal University of Goiás
Thiago de Paula Protásio Federal University of Lavras
Rafael Farinassi Mendes Federal University of Lavras
Lourival Marin Mendes Federal University of Lavras

DOI:

https://doi.org/10.4336/2016.pfb.36.88.1036

Keywords:

Agricultural waste, Lignocellulose, Mechanical properties

Abstract

The objective of this study was to evaluate physical and mechanical properties of particleboard produced with different amounts of sorghum crop residues. The panels were made with 0, 15, 30 and 45% of sorghum bagasse and 12% of urea-formaldehyde adhesive. The press cycle used was: 4,0MPa of pressure, 180 °C of temperature for 20 min. To evaluate panels´ quality physical and mechanical tests were carried out. Physical evaluations showed that all properties met the standard CS 236-66, and for every 1% of sorghum added on the panels there was an increase of 1.4 and 1.6% in water absorption at 2 and 24 h of immersion, respectively. For thickness swelling after 2 and 24 h of immersion there was no significant effect with increase in the percentage of sorghum, however it was observed an average value of IE24h only 1.13% higher than required by the standard CS 236-66 which is 30%. Mechanical properties evaluation showed that 13% was maximum sorghum to be added in the panels to meet the standard CS 236-66.

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Author Biographies

José Benedito Guimarães Junior, Federal University of Lavras

http://lattes.cnpq.br/5497377793349287
Michele Mantelli Xavier, Federal University of Goiás

http://lattes.cnpq.br/9870818204374650
Thamara Silva Santos, Federal University of Goiás

http://lattes.cnpq.br/9433282201920999
Thiago de Paula Protásio, Federal University of Lavras

http://lattes.cnpq.br/3847639263484797
Rafael Farinassi Mendes, Federal University of Lavras

http://lattes.cnpq.br/2585255322006890
Lourival Marin Mendes, Federal University of Lavras

http://lattes.cnpq.br/1846557273818913

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Published

2016-12-30

Issue

Vol. 36 No. 88 (2016): out./dez.

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How to Cite

GUIMARÃES JUNIOR, J. B. et al. Addition of sorghum culture waste in eucalyptus particleboards. Pesquisa Florestal Brasileira, v. 36, n. 88, p. 435–442, 30 Dec.2016.

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Addition of sorghum culture waste in eucalyptus particleboards

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