PRODUÇÃO DE PAINÉIS AGLOMERADOS COM MISTURAS DE SEIS ESPÉCIES DE MADEIRAS DA AMAZÔNIA E Pinus taeda

Iwakiri, Setsuo; Trianoski, Rosilani; Nascimento, Claudete Catanhede do; Azambuja, Rafael da Rosa; Campelo, Samantha Rodrigues; Ribeiro, Rodrigo Scoczynski

doi:10.5380/rf.v46i2.40866

Cited by 5 publications

(6 citation statements)

References 6 publications

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“…Regarding the results presented, the perpendicular tensile strength varied between 0.63MPa (NI) to 0.95MPa (Diniziaexcelsa Ducke, 85%), thus meeting the minimum requirement of ANSI A208.1 [CPA, 2009] and classifying them as a utility in an industrial environment. [Negrão et al, 2014] in their study finds an average value of 1.17MPa, while [Iwakiri et al, 2016] that addresses values of 0.75Mpa to 0.90MPa. Despite this, these values are lower than those found by [Surdi, Bortoletto Junior & Castro, 2018] of 1.16MPa and 1.61MPa.…”

Section: Mechanical Propertiesmentioning

confidence: 87%

“…Chevalier treatments and the mixed treatment of high-density commercial Amazonian species (p0.05). In the evaluation carried out in the twenty-four hour period, there was no effect on the treatments and the absorption of the panels (X² (2) = 5.84; p> 0.05 9.35% for twenty-four hours, while [Iwakiri et al, 2016] working with agglomerated panels of Amazonian species presents values ranging from 2.67% to 7.67% for two hours and 8.44% to 18.50% for twenty-four hours.…”

Section: Absorption and Swellingmentioning

confidence: 93%

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Ecological panels as an alternative for waste from mechanical processing of Amazonian species

Marques

Nascimento

Araújo

2020

Int J Innov Educ Res

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The wood residues resulting from the operational phases in companies in the forestry market are normally considered by-products and, therefore, are discarded or reused for energy production, however, this material has a greater potential, such as the generation of new products through agglutination, which may generate a new segment in the wood industry, causing competition between products of native and planted species. This research aimed to develop agglomerated panels using residues of two tree species from the Amazon (Dinizia excelsa Ducke and Manilkara huberi (Ducke) Chevalier) and a mixture of commercial Amazonian species of high density, with the purpose of greater added value and a possible solution to reduce the negative environmental impacts of carbon emissions. The experimental design consisted of three treatments with five repetitions in each. Experimental panels were produced with a nominal density of 0.80 g/cm³, using castor oil-based resin with 10% percentages. The panels were pressed with a pressure of 10 MPa, temperature of 100ºC and with a pressing time of 10 minutes. The evaluations of the results obtained were compared with the ANSI A208.1 / 2009 standard and with the literature on agglomerated panels of tropical species. In physical properties, the panels showed compliance with the values found in the literature, however, they are outside the standard of the norm. Regarding the mechanical properties, the MOR values classify the panels in the medium to high density standard in accordance with the standard. The results of the MOE are superior to those of the existing literature, with emphasis on the perpendicular traction that presents values consistent with the literature. The machining evaluations carried out according to ASTM D 1666-11 / 2011, show a good quality in the finish. In general analysis and in compliance with the regulations, all panels have economic viability and potential for industrialization.

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Section: Mechanical Propertiesmentioning

confidence: 87%

Section: Absorption and Swellingmentioning

confidence: 93%

Ecological panels as an alternative for waste from mechanical processing of Amazonian species

Marques

Nascimento

Araújo

2020

Int J Innov Educ Res

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“…The percentage is still below the production possibilities of Brazilian industries, considering the country's timber potential and installed technologies (Nogueira et al, 2018). The main industries of agglomerated panels which supply the main furniture centers are in the South and Southeast Regions, located in the states of São Paulo, Minas Gerais, Paraná, Santa Catarina and Rio Grande do Sul (Iwakiri et al, 2016).…”

Section: Introductionmentioning

confidence: 97%

Properties of particleboards manufactured from bamboo (Dendrocalamus asper)

Brito

Júnior

2020

Agraria

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Bamboo is a source of industrial raw material with wide geographical distribution. Brazil has good soil and climate conditions for its cultivation, in addition to existing reserves. Advantages of bamboo include: versatility, fast growth and good strength properties. One way of using this material would be as a raw material for manufacturing particleboards. Within this context, this article addresses an evaluation of the physical and mechanical properties of particleboards manufactured from bamboo particles (Dendrocalamus asper (Schult f.). Backer ex Heyne. Particles with 0.50 and 0.85mm granulometry and two conditions (control and treatment by immersion in hot water (70 ± 5 °C) for two hours) were used. Twelve homogeneous particleboards bonded with urea-formaldehyde adhesive with 10% solids were manufactured and the predetermined nominal density for all panels was 650 kg m-3. The properties analyzed were: water absorption, swelling and non-return rate in thickness, density profile, rupture modulus, elastic modulus, screw withdrawal and internal adhesion. Panels consisting of 0.50 mm granulometry showed higher water absorption rates, while panels made of particles treated with hot water and 0.85 mm granulometry showed higher swelling rates and non-return thickness. The panels made of treated particles showed higher density profile values in both layers of the panels. The granulometry did not influence the mechanical properties of the panels, and those with treated particles exhibited significant performance for the surface and top screw withdrawal properties, and internal adhesion. This last mentioned property reached the minimum value required by the standard. The results showed that it is feasible to use bamboo to manufacture particleboards, but it is necessary to adjust some variables such as nominal density, pressing parameters, adhesive content or the inclusion of a less dense material in the composition of the panels.

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“…Therefore, the use of alternative wood species, such as tropical species, can be an alternative in the production of OSB panels, as long as they are mixed with other species of lower density [17,18].…”

Section: Introductionmentioning

confidence: 99%

“…In some timber sectors, between 30% and 70% of the volume of roundwood harvested is converted into waste [19,20]. Therefore, the use of residues from the primary and secondary processing of tropical wood and the study of these species in panel production can provide subsidies for the installation of OSB factories in the Amazon region [18]. As an example, a study carried out using tropical wood residues demonstrated the potential use of residues for non-structural purposes, furniture, tools, and panels composed of short pieces [21].…”

Section: Introductionmentioning

confidence: 99%

Evaluation of the Oriented Strand Board Properties Produced Using Tropical Wood Mixtures

Aguiar,

Júnior,

Jankowsky

et al. 2023

Forests

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The objective of this study was to evaluate the composition of OSB panels created using the Amazonian species Caryocar villosum Aubl., Erisma uncinatum Warm., and Hymenolobium excelsum Ducke. The OSB was produced using a phenol–formaldehyde adhesive at a ratio of 30:40:30 for each layer. Different mixtures of Amazonian wood and Pinus caribaea var. caribaea. were tested. Physical (water absorption and thickness swelling after 2 and 24 h of immersion in water and non-return rate in thickness) and mechanical (internal bond and parallel and perpendicular static bending) tests were performed. The OSB panels composed of wood mixtures absorbed less water after 2 and 24 h of immersion when compared to the OSB produced using pine wood. After 24 h of immersion in water, the T3 panel (40% Pinus caribaea + 40% Hymenolobium excelsum + 20% Caryocar villosum) presented the lowest absorption value. In terms of swelling in thickness at 2 h and 24 h, the panel composed of 100% pine strands showed the highest swelling value, while the T3 treatment exhibited the lowest swelling value at 2 and 24 h, as well as for the rate of non-return in thickness. Regarding mechanical properties, we observed that all panels exhibited similar resistance for both parallel and perpendicular Modulus of Rupture, as well as parallel and perpendicular Modulus of Elasticity, except for the internal bond, where T3 demonstrated the highest resistance. Additionally, some OSB panels met the requirements of the EN 300 standard for OSB panels.

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PRODUÇÃO DE PAINÉIS AGLOMERADOS COM MISTURAS DE SEIS ESPÉCIES DE MADEIRAS DA AMAZÔNIA E Pinus taeda

Cited by 5 publications

References 6 publications

Ecological panels as an alternative for waste from mechanical processing of Amazonian species

Ecological panels as an alternative for waste from mechanical processing of Amazonian species

Properties of particleboards manufactured from bamboo (Dendrocalamus asper)

Evaluation of the Oriented Strand Board Properties Produced Using Tropical Wood Mixtures

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