| Revista: | Maderas : ciencia y tecnología |
| Base de datos: | |
| Número de sistema: | 000534466 |
| ISSN: | 0718-221X |
| Autores: | Bila, Narciso F.1 Trianoski, Rosilani3 Iwakiri, Setsuo3 Egas, Andrade F.2 Manhiça, Alberto A.4 Da Rocha, Márcio P.3 |
| Instituciones: | 1Paraná Federal University Laboratório de Painéis de Madeira, Curitiba PR. Brasil 2Eduardo Mondlane University Department of Forestry Engineering, Maputo. Mozambique 3Paraná Federal University Department of Forestry Engineering and Technology, Curitiba PR. Brasil 4Agrarian Research Institute of Mozambique, Maputo. Mozambique |
| Año: | 2021 |
| Volumen: | 23 |
| País: | Chile |
| Idioma: | Inglés |
| Resumen en inglés | The objective of this study was to evaluate the density, chemical properties and bonding quality of two lesser-used Mozambican wood species known as messassas (Brachystegia spiciformis and Julbernardia globiflora) aiming at edge-glued panel production. The bonding was performed using structural adhesive polyvinyl acetate D4, semi-structural adhesive emulsion polymer isocyanate and non-structural polyvinyl acetate D3 applied at 120·m-2 and 180·m-2 weights. Density, chemistry, edge shear bonding, wood failure percentage and the finger-joint tests were performed in accordance with standards. The results showed that both species have medium density, high extractives and lignin contents typical of tropical wood. The emulsion polymer isocyanate adhesive was approved with better performance compared to polyvinyl acetate D3 and D4 adhesives. It can also be affirmed that Brachystegia spiciformis and Julbernardia globiflora have similar bonding behaviour and the potential for producing edge glued panel panels, especially for indoor use. |
| Keyword: | Bonding quality, Edge glued panel, Emulsion polymeric isocyanate, Polyvinyl acetate, Value-added products, Wood bonding. |
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