Abstract
ABSTRACT This study aims to evaluate the use of Hovenia dulcis wood to produce Edge Glued Panels – EGP. To this end, joints with dimensions of 5.0 × 31.0 × 2.5 cm (Width × Length × Thickness) were put together using polyvinyl acetate (PVAc) and emulsion polymer isocyanate (EPI) adhesives at a spread rate of 200 g.m-2 and the chemical characterization of the wood was performed. The strength of glued joints was evaluated through shear tests based on the procedures described by established standards. The results showed that the EPI adhesive achieved the best results in edge gluing to produce EGP. The use of PVAc adhesive did not show satisfactory results for edge gluing under these conditions. Hovenia dulcis wood is indicated for producing higher value-added wood products - (VAWP) for external use purposes.
Highlights
The forestry sector makes an important contribution to the Brazilian economy, both in production for domestic consumption and for export purposes, with an important role in job creation and revenue generation (IBÁ, 2014).Due to the growing demand for forest products and the constant concern with pressure on native forests, there is a need to look for fast-growing species with the potential to supply lumber/timber for forest-based industries, such as wood used for manufacturing paper and cellulose, energy, sawmills, and the furniture industry, among others.Among the non-conventional species that can supply the forestry market, we can highlight Hovenia dulcis Thunberg
In order to perform this study, 16 logs were obtained from five Hovenia dulcis trees with a mean diameter of 23 cm, commercial height of 8.25 m and an average age of 18 years
Hovenia dulcis wood is recommended for the production of higher value-added wood products intended for external uses
Summary
Among the non-conventional species that can supply the forestry market, we can highlight Hovenia dulcis Thunberg. According to Vivian et al (2011) and Motta et al (2014), Hovenia dulcis wood has a basic density ranging from 0.51 to 0.65 g.cm-3 and anisotropic factor of 1.50, being classified as medium basic density wood with good stability. This makes it an alternative for use in the timber industry to manufacture flooring and furniture, which are high value-added products
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