Use este identificador para citar ou linkar para este item: http://repositorio.ufla.br/jspui/handle/1/31722
Título: The effect of post-heat treatment in mdf panels
Palavras-chave: Panels - Physical and mechanical properties
Dimensional stability
Temperature and time of heat treatment
Post-heat treatment
Painéis - Propriedades físicas e mecânicas
Estabilidade dimensional
Temperatura e tempo de tratamento térmico
Tratamento pós-calor
Data do documento: Jan-2017
Editor: Associação Brasileira de Polímeros
Citação: OLIVEIRA. S. L. et al. The effect of post-heat treatment in mdf panels. Materials Research, São Carlos, v. 20, n. 1, p. 183-190, Jan./Feb. 2017.
Resumo: This study was to evaluate the effect of post-heat treatment on the physical and mechanical properties of MDF (Medium Density Fiberboard) panels. Commercial MDF panels were produced in Brazil using Pinus wood and urea-formaldehyde (UF) adhesive. The post-heat treatments were carried in a factorial 3 x 2 (three temperatures of heat treatment - 200, 225 and 250 °C, and two times - 5 and 10 minutes), and a control treatment (without heat treatment). Subsequently, the physical and mechanical tests were performed. From the results it can be concluded that: 1) The most effective thermal post-treatment for improving the dimensional stability of the MDF was applied at 225 ° C and 10 min; 2) All the thermally treated panels revealed a significant decrease in the modulus of rupture and modulus of elasticity (MOR and MOE) to bending when compared with the control panels without post-heat treatment.
URI: http://repositorio.ufla.br/jspui/handle/1/31722
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