Physical and Mechanical Properties of Plywood Produced with Thermally Treated Pinus taeda Veneers

Plywood is a structural composite mainly applied in construction. For this purpose, some sort of preservative treatment recommended to increase its durability. One option the available treatments heat treatment, which promotes modification wood properties. This carried out on final product (plywood), because it can reduce strength if veneers. However, no study has proven such reduction. Therefore, aim work was evaluate three different temperatures (160 °C, 180 °C and 200 °C) veneer surface physical properties (specific gravity, moisture content swelling thickness) mechanical (MOE MOR static bending) Pinus taeda plywood. A reduction observed roughness veneer’s surfaces total extractives changed, with minimum value reached 160 treatment. The plywood specific gravity initially increased did not change at higher temperatures, reduced, thickness affected. There plywood, evidencing that does prejudice mechanically product.