Data/hora: 13/06/2024 00:47:03

Provedor de dados: | 64
País: | Brazil
Título: | Use of maize cob for production of particleboard
Autores: | Scatolino,Mário Vanoli; Silva,Danillo Wisky; Mendes,Rafael Farinassi; Mendes,Lourival Marin.
Data: | 2013-08-01
Ano: | 2013
Palavras-chave: | Environmental problems; Reuse; Physicomechanical properties; Agricultural residues.
Resumo: | Agricultural residues are materials generated in large quantities in Brazil and can accumulate to such extent as to cause environmental problems. Among agricultural residues, maize cob is one worthy of notice, and an alternative use for maize cob would be to produce particleboard panels in association with wood particles. This study aimed to evaluate the feasibility of using maize cob for production of particleboard panels. The following maize cob percentages were used: 0%, 25%, 50%, 75% and 100%, in association with particles of Pinus oocarpa wood. Panels were made with 8% of urea formaldehyde and 1% of paraffin (based on dry weight of particles). For compressing the panels, a pressure of 3.92 MPa was applied at a temperature of 160º C, for 8 minutes. Increased replacement of pinewood by maize cob residue promoted significant improvements to the properties water absorption after two hours of immersion, thickness swelling after two and after twenty-four hours of immersion. Mechanical properties had a decreasing correlation with the maize cob percentage being incorporated.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542013000400006
Editor: | Editora da Universidade Federal de Lavras
Relação: | 10.1590/S1413-70542013000400006
Formato: | text/html
Fonte: | Ciência e Agrotecnologia  v.37 n.4 2013
Fonte: | info:eu-repo/semantics/openAccess