Modification of static bending strength properties of Eucalyptus grandis heat-treated wood

AUTOR(ES)

Cademartori, Pedro Henrique Gonzalez de, Schneid, Eduardo, Gatto, Darci Alberto, Beltrame, Rafael, Stangerlin, Diego Martins

FONTE

Mat. Res.

DATA DE PUBLICAÇÃO

11/10/2012

RESUMO

The present study describes the effect of thermal rectification on physical and mechanical properties of Eucalyptus grandis wood at different levels of temperature and time. Samples of Eucalyptus grandis wood (10 × 10 × 200 mm) were heat-treated at 180, 200, 220 and 240 °C during 4 and 8 hours. The mechanical properties of heat-treated and untreated samples were determined by static bending tests. The physical properties were determined by weight loss and swelling tests. The results showed that modulus of elasticity, modulus of rupture, weight loss, volumetric swelling and linear swelling were affected significantly by the thermal rectification. However, the length of exposure influenced just weight loss, while the temperature influenced all the studied properties of heat-treated wood. More significant modifications with treatments at a temperature of 200 °C or higher were found in the properties of heat-treated wood.

Documentos Relacionados

• Differential Light Scattering Measurements of Heat-Treated Bacteria
• Study on Dynamic Compressive Mechanical Properties and Failure Modes of Heat-Treated Granite
• Mesophase evolution in heat-treated solid petroleum pitches
• In vitro transcription catalyzed by heat-treated human rotavirus.
• Intraperiplasmic Growth of Bdellovibrio bacteriovorus on Heat-Treated Escherichia coli