Bibliographic citations
Rodriguez, F., (2024). Resistencia de la línea de cola en juntas elaboradas con residuos de madera de Pinus patula Schlecht. & Cham [Universidad Nacional Agraria La Molina]. https://hdl.handle.net/20.500.12996/6885
Rodriguez, F., Resistencia de la línea de cola en juntas elaboradas con residuos de madera de Pinus patula Schlecht. & Cham []. PE: Universidad Nacional Agraria La Molina; 2024. https://hdl.handle.net/20.500.12996/6885
@misc{renati/1117088,
title = "Resistencia de la línea de cola en juntas elaboradas con residuos de madera de Pinus patula Schlecht. & Cham",
author = "Rodriguez Huaytan, Fanny Solange",
publisher = "Universidad Nacional Agraria La Molina",
year = "2024"
}
Worldwide, commercial forest plantations have rapidly increased in recent decades and are estimated to provide approximately one-third of the roundwood intended for industrial use. However, timber production in Peru primarily comes from natural forests, and due to the floristic complexity of natural tropical forests, irregular supply, and variability in raw material quality, it results in low industrial productivity and a high percentage of waste, leading to environmental pollution. Reconstituted wood products are a viable alternative for utilizing this waste, as they help conserve forest resources by employing wood of various sizes and shapes, promoting optimal use of forest resources and the development of value-added products. This research evaluated the quality of glued joints from wood waste of Pinus patula for the production of EGP panels, using three adhesives (PVA D3, PVA D4, and EPI) and three grammages (120 g/m², 150 g/m², and 180 g/m²). The wood waste was characterized anatomically, physically, and chemically. The viscosity, solids content, and pH of the adhesives were also analyzed. Joints were glued under a pressure of 0.8 MPa, using 5 minutes for PVA and 60 minutes for EPI. Subsequently, shear strength was tested on samples subjected to two pre-treatments (dry and humid environments) according to UNE-EN 13354. Results showed that in the humid environment, only the adhesive variable was significant. In the dry environment, adhesive, grammage, and the adhesive-grammage interaction were significant. The EPI adhesive performed better than PVA D4, which in turn outperformed PVA D3. Joints glued in the dry environment with EPI adhesive and grammages of 120 g/m², 150 g/m², and 180 g/m² met UNE-EN 13353 standards, with the 120 g/m² grammage being the most cost-effective option.
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