Avaliação da interação madeira-adesivo em madeira resinada de Pinus elliottii Engelm.

Abstract

The objective of this work was to evaluate the wood-adhesive interaction in resinous wood of Pinus elliottii in relation to its resin and non-resin sides. Anatomical description of the species, determination of pH, physical propertiesand the angle of contact and wetting were determined using polyvinyl acetate (PVA), ethylene glycol and distilled water. The experiment was realized at the Wood Technology Laboratory of the Universidade Tecnológica Federal do Paraná, Dois Vizinhos campus, in the state of Paraná. Four trees with a diameter similar to an area that performs resin extraction were selected, and these were removed for analysis. All analyzes were performed in relation to the resin (R) and non-resin (NR) sides of the tree. For data analysis, the resultswere subjected to 5% confidence ANOVA and descriptive graphical analysis of the data. Regarding the anatomical analysis of the wood, there was nodifference between the analysis of R and NR wood. Regarding the contact andwetting angle, the test carried out with PVA in the tangential sense of the wood showing a difference between the R and NR side. Regarding pH, there was no significant difference between R and NR The physical properties, basic andapparent specific mass did not differ between R and NR wood.