Avaliação das propriedades físico-mecânicas de painéis compensados de Toona ciliata M. Roem. var. australis

Albino, Vanessa Cristina do Sacramento; Sá, Vânia Aparecida de; Bufalino, Lina; Mendes, Lourival Marin; Almeida, Natália Amarante

doi:10.1590/s0104-77602011000100012

Cited by 12 publications

(14 citation statements)

References 4 publications

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“…Previous works have shown the potential of T. ciliata wood for the production of a wide range of woodbased products, among which high quality-saw wood (Silva et al 2010), conventional particleboards (Bufalino et al 2012a), plywood (Albino et al 2011) and cement-wood boards (Sá et al 2012, Sá et al 2010. Until the present, there are no works in the literature that applied T. ciliata wood in OSB production.…”

Section: Introductionmentioning

confidence: 99%

Alternative compositions of oriented strand boards (OSB) made with commercial woods produced in Brazil

Bufalino

Corrêa

Sá

et al. 2015

Maderas, Cienc. tecnol.

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This work aimed to investigate the feasibility of using and mixing Toona ciliata, Eucalyptus grandis/ urophylla and Pinus oocarpa woods in OSB production. Three one-species and four mixed-species combinations were compared. Layer structure varied by positioning different wood species in the surface and core of the panels. Phenol-formaldehyde (PF) adhesive was applied at 9% for all OSB panels. Three-layer mats with mass proportion of 25/50/25% for surface/core/surface were produced. Pressing time was 8 min, under a 4 MPa pressure and temperature of 180 ˚C. Physical and mechanical properties were evaluated and compared to EN (300) commercialization standard. Most OSB panels did not fully attain such requirements. OSB panels made with Eucalyptus grandis/urophylla and Pinus oocarpa woods have potential to be commercialized as OSB/1 and OSB/2 types, respectively. Among panels made with T. ciliata wood, those produced with this species in the surface and Eucalyptus grandis/urophylla wood in the core met the requirements established for OSB/1 commercialization. Eucalyptus wood has great potential to substitute Pinus wood in OSB production. The utilization of T. ciliata wood for OSB production decreased mechanical performance, but remarkably enhanced water resistance properties.

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Section: Introductionmentioning

confidence: 99%

Alternative compositions of oriented strand boards (OSB) made with commercial woods produced in Brazil

Bufalino

Corrêa

Sá

et al. 2015

Maderas, Cienc. tecnol.

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“…Albino et al (2011) ao avaliarem painéis de Toona ciliata, encontraram valores superiores aos encontrados para as espécies Amburana cearensis, Myracrodruon urundeuva e Sclerolobium paniculatum, porém similares ao do Pinus oocarpa, com valores variando entre 74,87 e 84,87%. Os resultados encontrados neste trabalho comparativamente aos valores normalmente referenciados na literatura demonstram o potencial de utilização das espécies estudadas na produção de painéis compensados.…”

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“…Além disso, o processo laboratorial e manual de produção dos painéis pode ter corroborado com os resultados obtidos. Albino et al (2011) encontraram valores para MOE perpendicular, inferiores aos do presente trabalho ao avaliar as propriedades físico-mecânicas de painéis compensados de Toona ciliata M. Roem. var.…”

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Potencial de utilização da madeira de Sclerolobium paniculatum, Myracrodruon urundeuva e Amburana cearensis para produção de compensados

Lisboa¹,

Guimarães²,

Guimarães³

et al. 2016

Sci. For.

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“…Panels only made of H. dulcis veneers that presented higher apparent density (Table 2) and higher perpendicular MOR and MOE when compared to the others. Better MOR and MOE static bending results in panels with higher apparent density were also observed by Albino et al (2011). This is an important factor for the panel structural uses since they require the increased strength and rigidity.…”

Section: Static Bendingmentioning

confidence: 79%

“…The yield in lamination and quality of plywood made of Criptomeria japonica veneers were evaluated by Pinto and Iwakiri (2013). Veneers of the species Toona ciliate were used by Albino, Sá, Bufalino, Mendes and Almeida (2011).…”

Section: Introductionmentioning

confidence: 99%

Properties of multi-laminated plywood produced with Hovenia dulcis Thunb. and Pinus elliottii wood under different pressing pressures

et al. 2017

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ABSTRACT. This study aimed at evaluating the effect of different pressing pressures and the influence of the wood features on the properties of plywood produced with sapwood and heartwood Hovenia dulcis combined with Pinus elliottii. To support the discussion, the anatomical and physical characterizations of the wood were carried out. The panels were produced by applying three different press pressures (0.88, 1.18 and 1.47 MPa) and with six combinations of wood veneers. Phenol-formaldehyde resin was employed, 160 g m -2in a simple line and 35% solid content. The anatomical analysis revealed that the sapwood is more permeable than the H. dulcis heartwood. The H. dulcis wood basic density it was higher than that of the P. elliottii. Increased press pressure raised the values of the apparent density, thickness swelling and thickness swelling plus recovery of the plywood and water absorption reduction. The panels produced with H. dulcis veneers presented higher apparent density, MOR, MOE and bonding line resistance, as well as lower water absorption and moisture content, than those produced with P. elliottii veneers. No difference was noticed regarding the plywood properties when the main effects were evaluated in relation to the use of H. dulcis heartwood and sapwood veneers.Keywords: wood panels, japanese raisin tree, wood veneers, phenol-formaldehyde resin.Propriedades de painéis compensados multilaminados produzidos com madeira de Hovenia dulcis Thunb. e Pinus elliottii, em diferentes pressões de prensagem RESUMO. O estudo avaliou o efeito do uso de diferentes pressões de prensagem e a influência das características da madeira nas propriedades dos painéis compensados produzidos com lâminas de alburno e de cerne da madeira de Hovenia dulcis, e em combinação com Pinus elliottii. Para subsidiar a discussão, foi realizada a caracterização anatômica e física da madeira. Os painéis foram produzidos sob três pressões (0,88, 1,18 e 1,47 MPa) e em seis combinações de lâminas de madeira. Utilizou-se resina fenolformaldeído, na gramatura de 160 g m -² em linha simples e teor de sólidos de 35%. A análise anatômica mostrou que a madeira de alburno de H. dulcis é mais permeável que a de cerne e que a densidade básica de ambas foi maior que a de P. elliottii. O aumento da pressão de prensagem causou aumento da densidade aparente, do inchamento e do inchamento mais recuperação em espessura e redução da absorção d´água dos painéis. Os painéis produzidos com lâminas de H. dulcis tiveram maior densidade aparente, MOR, MOE e resistência da linha de cola, e menor absorção d´água e teor de umidade, do que os produzidos com P. elliottii, não se verificando diferenças entre cerne e alburno de H. dulcis.Palavras-chave: painéis de madeira, uva do Japão, lâminas de madeira, resina fenol-formaldeído.

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Avaliação das propriedades físico-mecânicas de painéis compensados de Toona ciliata M. Roem. var. australis

Cited by 12 publications

References 4 publications

Alternative compositions of oriented strand boards (OSB) made with commercial woods produced in Brazil

Alternative compositions of oriented strand boards (OSB) made with commercial woods produced in Brazil

Potencial de utilização da madeira de Sclerolobium paniculatum, Myracrodruon urundeuva e Amburana cearensis para produção de compensados

<b>Properties of multi-laminated plywood produced with <i>Hovenia dulcis</i> Thunb. and <i>Pinus elliottii</i> wood under different pressing pressures

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