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Processing conditions analysis of Eucalyptus globulus plywood bonded with resol-tannin adhesives |
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| Authors: | Stefani P M Peña C Ruseckaite R A Piter J C Mondragon I |
| Institution: | aResearch Institute of Material Science and Technology (INTEMA), National Research Council (CONICET), Engineering Faculty, Mar del Plata Universit, Juan B. Justo 4302, B7608FDQ Mar del Plata, Argentina b“Materials+Technologies” Group, Department of Chemical and Environmental Engineering, Polytechnic School, Universidad País Vasco/Euskal Herriko Unibertsitatea, Pza. Europa 1, 20018 Donostia-San Sebastián, Spain cDepartamento de Ingeniería Civil, Facultad Regional Concepción del Uruguay, Universidad Tecnológica Nacional., Ing. Pereira 676, E3264BTD C. del Uruguay, Entre Ríos, Argentina |
| Abstract: | Phenol-formaldehyde resol containing mimosa tannin extract was employed to produce plywood panels with two plies from Eucalyptus globulus veneers. The effect of processing conditions and tannin content on the gelation time of the adhesive in the glue line was evaluated by dynamic-mechanical analysis (DMA). These results were related with shear strength and wood failure of glue line in the final panels. Hazardous petrochemical phenol could be partially substituted in resols in industrial applications by addition of mimosa tannin extracts. |
| Keywords: | Plywood Adhesive resol Tannin |
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