Painéis de madeira aglomerada de Eucalyptus badjensis e Pinus spp.

Pereira, Giuliano Ferreira; Rios, Polliana D ́Angelo; Buss, Rodrigo; Vieira, Helena Cristina; Grubert, Willian; Cunha, Alexsandro Bayestorff da; Belini, Ugo Leandro

doi:10.18671/scifor.v45n114.13

Cited by 4 publications

(4 citation statements)

References 7 publications

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“…The use of short and thick particles obtained for the wood of Populus deltoides at ages 8 and 12 in the manufacture of the panels, provided the achievement of greater tensile strength perpendicular for the MDP and HDP panels. Pereira et al (2017) observed a similar behavior for MDP panels produced with industrial particles of Pinus spp and particles of Eucalyptus badjensis produced under laboratory conditions with wood from the entire shaft. Moslemi (1974), that particleboards produced with low density wood result in better compaction, and consequently, it improve mechanical properties.…”

Section: Physical and Mechanical Properties Of Mdp And Hdp Panelssupporting

confidence: 61%

“…The values of 3.14% of total extracts, 27.67% of lignin and 4.56 of pH obtained by Iwakiri et al (2017) and Pereira et al (2017) for Pinus spp. industrial particles are close to the average values found for Populus deltoides woods, demonstrating the potential of the species under study as a raw material for the particleboards production.…”

Section: Wood Propertiesmentioning

confidence: 84%

“…In Brazil, several alternative species for the production of particleboard have already been researched, such as Schizolobium amazonicum and Cecropia hololeuca (Iwakiri et al, 2010); Cryptomeria japonica (Trianoski et al, 2013); Toona ciliata (Trianoski et al, 2014); Hovenia dulcis and Mimosa scabrella (Sanches et al, 2016); Pinus patula (Rios et al, 2016); Eucalyptus badjensis (Pereira et al, 2017); Hevea brasiliensis (Iwakiri et al, 2018); Ligustrum lucidum (Sozim et al, 2019); Cupressus torulosa (Iwakiri et al, 2020).…”

Section: Introduction and Objectivesmentioning

confidence: 99%

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Use of Populus deltoides wood in the Production of MDP and HDP

2021

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The aimed to evaluate the properties of MDP and HDP panels, produced with pure Populus deltoides or in a mixture with Pinus taeda, together with urea-formaldehyde resin. The density and chemical properties of this wood with 8 and 12 years of age were determined, which were used for the production of panels with nominal density of 0.65 and 0.90 g.cm -3 . Water absorption and thickness swelling tests were performed after 2 and 24 hours of immersion, as well as static bending and perpendicular tensile. Populus deltoides wood was classified as low-density in both ages and presented chemical properties similar to Pinus taeda. Mechanical properties obtained for the panels produced reached the minimum requirements values established by the standards NBR 14810-2 and ANSI A208.1, demonstrating the potential use of wood species for the production of MDP and HDP panels, at both ages studied and used pure or mixed with Pinus taeda wood.

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Section: Physical and Mechanical Properties Of Mdp And Hdp Panelssupporting

confidence: 61%

Section: Wood Propertiesmentioning

confidence: 84%

Section: Introduction and Objectivesmentioning

confidence: 99%

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Use of Populus deltoides wood in the Production of MDP and HDP

2021

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“…It is especially indicated for high-altitude locations, such as the Santa Catarina Plateau and Southern Paraná (HIGA et al, 2002;SANTOS et al, 2015). The species' wood usage has been studied for several products, such as: cellulose pulp, paper and particleboard panels (PEREIRA et al, 2017).…”

Section: Introductionmentioning

confidence: 99%

INFLUENCE OF THERMAL MODIFICATION ON THE PHYSICAL AND MECHANICAL PROPERTIES OF Eucalyptus badjensis MIXED PARTICLEBOARD / OSB PANELS

Pereira¹,

Iwakiri²,

Trianoski³

et al. 2021

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The objective of this research was to evaluate the effects of thermal modifications, at different temperatures and exposure times, on the technological properties of mixed particleboard / OSB panels made out of Eucalyptus badjensis. Using the wood of Eucalyptus badjensis, Particleboard, OSB and mixed Particleboard/OSB panels (control and thermally modified) were manufactured. The mixed panels’ thermal modification was carried out under three temperatures (180ºC, 200ºC and 220ºC) and two exposure times (10 minutes and 12 minutes). For the panels’ manufacturing, 6% of phenol-formaldehyde adhesive and 1% of paraffin were employed, which was calculated based on the particles’ dry mass. The water absorption and thickness swelling properties were evaluated after 2 and 24 hours of immersion, in addition to the panels’ modulus of elasticity, modulus of rupture and internal bond. Based on the results, we were able to conclude that the thermal modification affected most of the physical properties positively. From the different exposure times studied, the most effective one was the period of 12 minutes, especially for water absorption after 2 hours, which caused a reduction of 11.27%. In turn, the most effective temperature was of 220ºC, highlighting the thickness swelling after 24 hours, which caused a swelling decrease of 23.76% in comparison with the control panels. Regarding the mechanical properties, the thermal modification, in terms of the studied exposure times and temperatures, did not affect the results of the mixed particleboard /OSB panels.

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