Produção de painéis laminados unidirecionais - LVL com lâminas de Schizolobium amazonicum, Eeucalyptus saligna e Pinus taeda

CERNE

Iwakiri, Setsuo²  Matos, Jorge Luis Monteiro de²  Souza, Marina Moura de¹  Trianoski, Rosilani¹  Almeida, Vanessa Coelho¹  Viana, Lívia Cássia¹  Pinto, Juliana Afonso¹ 

[1] Universidade Federal do Paraná, Curitiba$$;Universidade Federal do Paraná/UFPR, Curitiba$$

关键词: Wood veneers;    paricá;    plywood.;   

DOI  :  10.1590/S0104-77602010000400015

来源: Universidade Federal de Lavras-UFLA

【 摘 要 】

This research evaluated the quality of laminated veneer lumber -LVL manufactured with veneers of Schizolobium amazonicum (paricá), Eucalyptus saligna and Pinus taeda. The LVL panels were manufactured in the laboratory conditions composed by seven veneers, 2,0 mm thickness, with different structural compositions, using phenol-formaldehyde resin. The veneers of Schizolobium amazonicum- paricá- were pre-classified by using stress wave machine. The veneers of Eucalyptus saligna and Pinus taeda were disposed in the face layer to reinforce the structural strength of LVL panels. The LVL quality was evaluated using glue line shear strength and static bending test (MOE and MOR, edge and flat). Grading of paricá veneers based on MOEd did not affected significantly the results of the glue line shear strength and MOE and MOR edge. For the MOE and MOR flat, the use of veneers of MOEd grade 1 contributed significantly to increasing the average values of these properties. In the same way, using the Eucalyptus saligna veneers on the face of LVL resulted in higher average values of MOE and MOR, edge and flat.

【 授权许可】

Unknown