EVALUATIOM OF PHYSICAL AND MECHANICAL PROPERTIES OF PARTICLEBOARD PRODUCED FROM WOOD OF Cupressus torulosa IN MIXTURE WITH Pinus taeda

Iwakiri, Setsuo; Trianoski, Rosilani; Silva, Amanda Leite da; Stüpp, Ângela Maria; Cabral, Bruna Mulinari; Vieira, Helena Cristina

doi:10.5380/rf.v50i3.61971

Cited by 2 publications

(3 citation statements)

References 10 publications

(18 reference statements)

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“…wood. According to Iwakiri et al (2020) high levels of total extractives can block the adhesive-wood contact, causing deficiencies in panel bonding.…”

Section: Physical and Chemical Characterization Of The Lignocellulosi...mentioning

confidence: 99%

“…The produced panels presented moisture in accordance with the technical parameters of ABNT NBR 9531 (1986b) which suggest values below 11 %. Iwakiri et al (2020) obtained the moisture content of the panels ranging from 11,51 % with loblolly pine (Pinus taeda L.) presenting higher moisture values. Mendonza et al…”

Section: Physical Characterization Of the Plywood Panelsmentioning

confidence: 99%

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Utilization of nanotalc modified adhesives in plywood panels

Lourenço,

Aparecida dos Santos,

Corrêa Furtini

et al. 2024

Maderas-Cienc Tecnol

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As an alternative for the partial replacement of synthetic adhesives are the modifications that occur still during their synthesis, to improve and adhere new properties. Among the possible materials used in nanoscale, talc is a mineral material of natural origin and a promising raw material due to its low cost, lightness, natural hydrophobicity. Due to the scarcity of studies with the insertion of nanotalc in adhesives, this study aimed to produce plywood panels bonded with phenol-formaldehyde adhesive nanomodified with talc to evaluate its physical-mechanical resistance when compared to conventional synthetic adhesives. To carry out this study, three Pinus oocarpa trees with 28 years of age were used. Different concentrations of talc were used in the formulation with the phenol-formaldehyde adhesive, being the treatments 0; 0,05; 1; 1,5 and 2 % of talc (mass/mass) in relation to the adhesive, with three panels per treatment, totaling 15 panels. The pressing time was 8 minutes with temperature of 160 ºC and pressure of 1 MPa. The physical-chemical characteristics of the lignocellulosic material and of the plywood panels were determined. The quality of the adhesive produced was demonstrated by its resistance to water absorption with the insertion of up to 2 % talc to the adhesive, reducing it considerably. From 1 % talc inserted, the plywood panels had their mechanical characteristics superior to those glued with pure phenol-formaldehyde adhesive. However, as the study is innovative in nature, further research should focus on the application and quality evaluation of other talc nanomodified adhesives on different types of wood panels.

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“…wood. According to Iwakiri et al (2020) high levels of total extractives can block the adhesive-wood contact, causing deficiencies in panel bonding.…”

Section: Physical and Chemical Characterization Of The Lignocellulosi...mentioning

confidence: 99%

Section: Physical Characterization Of the Plywood Panelsmentioning

confidence: 99%

Utilization of nanotalc modified adhesives in plywood panels

Lourenço,

Aparecida dos Santos,

Corrêa Furtini

et al. 2024

Maderas-Cienc Tecnol

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“…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%

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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EVALUATIOM OF PHYSICAL AND MECHANICAL PROPERTIES OF PARTICLEBOARD PRODUCED FROM WOOD OF Cupressus torulosa IN MIXTURE WITH Pinus taeda

Cited by 2 publications

References 10 publications

Utilization of nanotalc modified adhesives in plywood panels

Utilization of nanotalc modified adhesives in plywood panels

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

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