Efeito da incorporação de casca de café nas propriedades físico-mecânicas de painéis aglomerados de Eucalyptus urophylla S.T. Blake

• Autor(a) principal: Mendes, Rafael Farinassi
• Data de Publicação: 2010
• Outros Autores: Mendes, Lourival Marin, Guimarães Júnior, José Benedito, Mori, Fábio Akira, César, Antonia Amanda da Silva
• Tipo de documento: Artigo
• Idioma: por
• Título da fonte: Repositório Institucional da UFLA
• Texto Completo: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542010000300012; http://repositorio.ufla.br/jspui/handle/1/7212
• topic: Casca-de-café; Aglomerado; Eucalyptus urophylla; Coffee husks; Particleboard

The objective of this study was to evaluate the influence of the incorporation of Coffee husks in the production of particleboard with Eucalyptus urophylla S.T. Blake. The panels were produced incorporating 25%, 50%, and 75% of Coffee husks at three levels of resin phenol-formaldehyde (6, 9 and 12%) and 1% of paraffin. The nominal density of the panels was 0.7 g/cm3 and the cycle of pressing consisted in a pressure of 3.92 MPa under a temperature of 180°C for 8 minutes. By the results it was possible to observe that the physical properties of the particleboard have a linear relationship decreasing with the increase in the level of resin, and increasing with the increase in the percentage of coffee husks, showing higher values of water absorption and thickness swelling. The mechanical properties show a linear relationship growing with the increase of resin level, and decreasing with a reduction the percentage of coffee husk association. The way that the search was conducted, the incorporation of the Coffee husks harms the quality of the panels produced.