Evaluation of the use potential of nine species of genus Eucalyptus for production of veneers and plywood panels

CERNE

Setsuo Iwakiri²  Jorge Luis Monteiro De Matos²  José Guilherme Prata²  Rosilani Trianoski¹  Leandro Soares Da Silva¹ 

[1] ,Universidade Federal do Paraná/UFPR Departamento de Engenharia e Tecnologia Florestal Curitiba PR ,Brasil

关键词: Veneer sheets;    plywood panels;    Eucalyptus;    Lâminas de madeira;    compensados;    Eucalyptus;   

DOI  :  10.1590/S0104-77602013000200010

来源: SciELO

【 摘 要 】

The objective of thisstudywas to evaluate the use potential of nine species of Eucalyptus for production of veneer sheets and multilaminated plywood panels. Veneers were cut using a pilot laminating lathe to a nominal thickness of 2.0 mm. Analysis included finding values of overall yield and yield according to three quality classes for the nine relevant species. Plywood panels were manufactured in a laboratory, consisting of five 2.0 mm veneer sheets which were bonded together with phenol-formaldehyde resin at a weight of 360 g/m² (double line). The panels were compressed using a specific pressure of 10 kgf/cm², a temperature of 140ºC and a pressing time of 10 minutes. Results indicated that, with the exception of E. phaeotricha and E. pellita, all other Eucalyptus species had above 50% average veneer yield after lamination. Results of glue line shear testing and static bending parallel and perpendicular demonstrated that species Eucalyptus grandis, Eucalyptus saligna, Eucalyptus dunnii, Eucalyptus globulus, Eucalyptus viminalis, Eucalyptus robusta and Eucalyptus pellita have great potential within the parameters of this study for use in the production of veneer sheets and plywood panels intended for outdoor use.

【 授权许可】

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