Caracterização tecnológica da madeira juvenil de teca (Tectona grandis) visando à produção de móveis

Paes, Juarez Benigno; Santos, Lorenzo Lube dos; Silva, Luciana Ferreira da; Motta, Javan Pereira; Braz, Rafael Leite; Lombardi, Lucas Recla

doi:10.5039/agraria.v10i3a3906

Cited by 12 publications

(10 citation statements)

References 8 publications

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“…The complete characterization of the wood and charcoal properties of the pre-selected genetic materials for the production of charcoal is presented in Table 4. The presence of materials usually not used in the charcoal production, such as Eucalyptus maidenii hybrids is verified (Pereira et al, 2013a;Vital et al, 2013;Trugilho et al;2015;Pereira et al, 2016;Santos et al, 2016;Carneiro et al, 2017b;Rocha et al, 2017;Siebeneichler et al, 2017). In this way, the importance of the incorporation of genetic materials not usual for the charcoal production, in programs of improvement of these companies is evident.…”

Section: Pre-selection Of Genetic Materialsmentioning

confidence: 90%

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Application of thermogravimetric analysis as a pre-selection tool for Eucalyptus spp.

Fialho

Carneiro

Figueiró

et al. 2019

Agraria

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The aim of the study was to evaluate the use of thermogravimetric analysis in the pre-selection of genetic materials. Twenty-five Eucalyptus spp. genetic materials were used. The analysis of the data consisted of three stages; first, was carried out an exploratory study of the wood and charcoal properties. Subsequently, a Pearson correlation analysis was performed between the parameters of thermogravimetric analysis (TGA) and the properties of wood and charcoal. Finally, once the presence of significant correlations between these properties was verified, pre-selection of genetic material was carried out. The loss of mass in the temperature range of 300-450ºC, from thermogravimetric analysis (TGA), showed the highest number of correlations between wood and charcoal properties, which allowed the use of this TGA variable in pre-selection of genetic materials. Genetic materials 9 (Hybrids of E. urophylla and E. maidenii), 10 (Hybrids of E. urophylla and Eucalyptus sp.), 19 (Hybrids of E. urophylla, E. camaldulensis, E. grandis and Eucalyptus sp.) And 21 (Hybrids of E. urophylla, E. camaldulensis, E. grandis and Eucalyptus sp.) presented potentials for charcoal production, through pre-selection.

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Section: Pre-selection Of Genetic Materialsmentioning

confidence: 90%

“…According to Paes et al (2015), the higher densities are associated, among other factors, with higher wall fraction and smaller pore diameter. Therefore, the low variation observed for this property can be a consequence of the low variation rates also observed for the wall fraction and the pore diameter of the wood.…”

Section: /9mentioning

confidence: 99%

Application of thermogravimetric analysis as a pre-selection tool for Eucalyptus spp.

Fialho

Carneiro

Figueiró

et al. 2019

Agraria

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“…Due to physiological differences generated by the teak heartwood formation process, Paes et al (2015) observed that besides the differences in resistance to biodeterioration in the heartwood and sapwood areas, there are also changes to the wood physical resistance. Furthermore, Vidaurre et al (2011) consider that differences in the production of adult and juvenile wood during the development of any rapid growth specie, such as the teak, also results in different responses when it is submitted to different beneficiation processes.…”

Section: Introductionmentioning

confidence: 99%

Effect of Age on Heartwood / Sapwood Relationship, Extractive Contente, and Permeability of Teak Wood

Canal

Carvalho

Carneiro

et al. 2020

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Due to the physiological differences in the juvenile and adult phases of teak wood, differentiation occurs in the impregnation by extractive materials along the heartwood regions, assuming that there is also a significant variation in the permeability of this material. Thus, the study aimed to evaluate the influence of age on the heartwood / sapwood ratio (H/S), permeability, and extractives content of Tectona grandis L.f wood. Four ages (10, 12, 14, and 16 years) and four trees (repetitions) were evaluated, totaling 16 samples. The H/S ratio, extractive content, and wood permeability were determined, in addition to the average and maximum permeability among all ages selected for calculation of their porosity. The H/S ratio increased over the ages of 10 and 16, and the content of extractive materials increased until the age of 14. There was a high heterogeneity between the permeability values of the wood at all ages analyzed, and one of the possible explanations for this fact is the presence of tyloses in different places on the trunk and the arrangement of the pores around the growth rings.

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“…Flórez (2015) escreveu sobre ensaios de simulação laboratorial com teca no 13 o ano de idade para uso em pisos de madeira e constatou que ela pode ser empregada em áreas com tráfego leve a moderado, sem execução de grandes esforços, podendo ser usada em residências e outros ambientes pequenos. Em outra vertente, Paes et al (2015) caracterizou tecnologicamente a madeira de teca aos 7 anos para a produção de móveis e obteve bons resultados de estética e acabamento para o material confeccionado, evidenciando potencial uso na indústria moveleira.…”

Section: Introductionunclassified

ANÁLISE DA VIABILIDADE ECONÔMICA DE UM PLANTIO DE TECA (Tectona grandis) NA FAZENDA CONFRARIA DO CAMPO, EM SANTARÉM-NOVO, PARÁ

Rabelo¹,

Baumann²,

Maestri³

et al. 2020

RCR

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As boas propriedades da madeira de teca lhe conferem múltiplas aplicações, sendo muito valorizada no mercado internacional como madeira nobre e de alto valor agregado. O presente trabalho teve como objetivo determinar os custos de um povoamento florestal de teca, assim como as receitas geradas, por meio da demonstrar dos custos e receitas de cada etapa do empreendimento em estudo e o retorno financeiro da atividade. A área de estudo está localizada no Município de Santarém-Novo-PA, sendo os dados originários de povoamento homogêneo de Teca (Tectona grandis L. f.), em arranjo de 3 m x 4 m, em área de 300 hectares. Foram avaliados, o investimento na implantação, manutenção, colheita e transporte do plantio, assim como a produtividade do povoamento. Foram utilizados os indicadores econômicos: Valor Presente Líquido (VPL); Valor Anual Equivalente (VAE); Razão Benefício Custo (RBC) e Taxa Interna de Retorno (TIR). Os dados utilizados neste estudo foram tabulados em planilhas do Microsoft Excel. O custo total do empreendimento foi de 15.796,00, onde os custos na fase de implantação iguais a R$2.486,00, custos de colheita R$10.970,00 e de manutenção R$ 2.340,00. Quando se trata das receitas do plantio, está foi de R$68.750,00. Os valores encontrados com os indicadores econômicos apontam que, o plantio em questão possui viabilidade econômica, obtendo-se: VPL=R$9.969,28; VAE=R$1.310,70; TIR=20% e RBC=10,59. A partir da análise de dados desse projeto, pode-se concluir que, o empreendimento é viável economicamente. No entanto, apesar de possuir altos valores de lucratividade, com baixos custos de implantação, o plantio só apresentou retorno financeiro no último ano.

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Caracterização tecnológica da madeira juvenil de teca (Tectona grandis) visando à produção de móveis

Cited by 12 publications

References 8 publications

Application of thermogravimetric analysis as a pre-selection tool for Eucalyptus spp.

Application of thermogravimetric analysis as a pre-selection tool for Eucalyptus spp.

Effect of Age on Heartwood / Sapwood Relationship, Extractive Contente, and Permeability of Teak Wood

ANÁLISE DA VIABILIDADE ECONÔMICA DE UM PLANTIO DE TECA (Tectona grandis) NA FAZENDA CONFRARIA DO CAMPO, EM SANTARÉM-NOVO, PARÁ

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