EFFECT OF HEAT TREATMENT ON COLOR, WEIGHT LOSS, SPECIFIC GRAVITY AND EQUILIBRIUM MOISTURE CONTENT OF TWO LOW MARKET VALUED TROPICAL WOODS

Cedrelinga catenaeformis) and cedro-marinheiro (Guarea trichilioides) woods. Heat treatments caused weight loss, darkening, and decreased EMC, as the maximum temperature increased. However, no changes in specific gravity were observed as a function of heating. Cedro-marinheiro has presented the highest changes in color and weight as a function of heating, while cedroarana has shown the highest reduction in EMC. Heat treatments improved some wood properties, being a good approach to improve low market valued tropical woods. Results also suggest that resilience to reduction of hygroscopicity after heating might be related to wood specific gravity.

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