&lt;i&gt;Pinus&lt;/i&gt; spp. na produção de painéis de partículas orientadas (OSB).

Mendes, Lourival Marin; Iwakiri, Setsuo; Matos, Jorge Luís Monteiro de; Keinert, Sidon; Saldanha, Leopoldo Karman

doi:10.5902/198050981688

Cited by 33 publications

(48 citation statements)

References 1 publication

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“…OSB production process followed parameters proposed by Mendes et al [15]. Initially, joists of Pinus sp (rejected for building purposes), moisture content near 12%, were referred for joinery, where were cut in pieces 90mm wide and 45mm thick (Figure 1).…”

Section: Methodsmentioning

confidence: 99%

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Modulus of Elasticity in Static Bending for Oriented Strand Board (OSB)

Souza¹,

Varanda²,

Christofóro³

et al. 2014

cmaterials

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OSB (oriented strand boards) are wood based products that substitute plywood boards, usually used as structural elements, especially with part of formwork for reinforced concrete members as beams, slabs and columns. In this context, the stiffness properties are highly important. This study aimed to evaluate, with the aided of three points static bending test, the modulus of elasticity of OSB using recommendations of the European Standard EN 310:1993, combined with an alternative method of calculation based on the least square method. In this case, three displacement values are taking in account to stiffness determination, improving reliability on it. Results of the ANOVA indicated no statistical equivalence between moduli of elasticity obtained by the two methods of calculation. Modulus of elasticity of this technique proved to be 7% lower than the elastic modulus obtained by standard EN 310:1993, revealing be important the use of suggested approach.

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Section: Methodsmentioning

confidence: 99%

“…A pre-pressing was conducted aiming to improve mattress conformation and to avoid particles loss. Then, the mattress was taken to a hydraulic press and subjected to specific pressure of 4.5MPa, during ten minutes at a temperature of 100 ℃ , as recommended by Mendes et al [15] and Nascimento et al [12].…”

Section: Methodsmentioning

confidence: 99%

Modulus of Elasticity in Static Bending for Oriented Strand Board (OSB)

Souza¹,

Varanda²,

Christofóro³

et al. 2014

cmaterials

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“…Diversos fatores influenciam na adequação das propriedades requeridas, merecendo destaque os fatores inerentes à madeira, tais como espécies, densidade, teor de umidade, extrativos, local de crescimento, características anatômicas; e os inerentes ao processo, tais como densidade dos painéis, razão de compactação, composição dos painéis, adesivo, parafina, geometria e orientação das partículas, umidade das partículas, ciclo de prensagem (MOSLEMI, 1974;MALONEY, 1977;MENDES, 2001;MENDES, 2011).…”

Section: Fatores Que Afetam As Propriedades Dos Painéis Osbunclassified

“…Além de determinar a massa específica do painel, a espécie influencia na formulação do adesivo utilizado, fato atribuído a presença de extrativos e variação do Ph. Nesse mesmo sentido, algumas espécies requerem um maior controle da umidade das partículas, em decorrência da possibilidade de ocorrência de estouro, ou separação de camadas, durante a prensagem final do painel (MENDES, 2001, citado por MENDES et al, 2002 …”

Section: Espécieunclassified

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Produção de painéis de partículas orientadas (OSB) a partir da madeira de um híbrido de Pinus elliottii var. elliottii var. Pinus caribaea var. hondurensis

Surdi¹

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Hybrid chipboard panels based on sugarcane bagasse, urea formaldehyde and melamine formaldehyde resin

Filho¹,

Mendes

Novack

et al. 2011

Industrial Crops and Products

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The expansion of Brazilian agricultural production was very important in the last decade. A number of waste residues were produced showing an enormous potential for industrial crops and products. Sugarcane bagasse is the most important one and it has been investigated for chipboard panel's preparation. In this sense, this work aims to develop, characterize and compare chipboard panels made with sugarcane bagasse with urea formaldehyde (UF) and melamine formaldehyde (MF) resins. Panels were obtained with a mixture of sugarcane bagasse and particles, like pine or eucalyptus, with and without paraffin in the formulation. Nine different types of panels have been made, all with 9% in resin mix, under a pressing cycle of 4.0 MPa cm 2 , and temperature of 160 • C. Under physical tests, the panels complied with the American Standard CS 236-66 for trading chipboards of medium density and, in most cases the results obtained were lower than the ones raised in the literature. Under mechanical tests, that same standard was not complied with and, in most cases the results were close to or higher than those obtained in the literature.

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<i>Pinus</i> spp. na produção de painéis de partículas orientadas (OSB).

Cited by 33 publications

References 1 publication

Modulus of Elasticity in Static Bending for Oriented Strand Board (OSB)

Modulus of Elasticity in Static Bending for Oriented Strand Board (OSB)

Produção de painéis de partículas orientadas (OSB) a partir da madeira de um híbrido de Pinus elliottii var. elliottii var. Pinus caribaea var. hondurensis

Hybrid chipboard panels based on sugarcane bagasse, urea formaldehyde and melamine formaldehyde resin

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