The Effect of Post-Heat Treatment in MDF Panels

AUTOR(ES)

Oliveira, Stefânia Lima, Freire, Ticyane Pereira, Mendes, Lourival Marin, Mendes, Rafael Farinassi

FONTE

Mat. Res.

DATA DE PUBLICAÇÃO

05/01/2017

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.

Documentos Relacionados

• Effect of Rolling in the Recrystallization Temperature Region Associated with a Post-Heat Treatment on the Microstructure, Crystal Orientation, and Mechanical Properties of API 5L X70 Pipeline Steel
• Effect of Post-production Heat Treatment on Particleboard from Sugarcane Bagasse
• PROPERTIES OF PARTICLEBOARD PANELS MADE OF SUGARCANE PARTICLES WITH AND WITHOUT HEAT TREATMENT
• Effect of Post Weld Heat Treatment Process on Microstructure and Mechanical Properties of Friction Welded Dissimilar Drill Pipe
• The effect of weld geometry and post-weld heat treatment on the corrosion behaviour of austenitic stainless steel immersed in 1.0 M NaCl solution