Caracterização Tecnológica da Madeira de Schizolobium amazonicum para a Produção de Celulose Kraft

Silva, Jacqueline Jesus Nogueira da; Cardoso, Gabriel Valim; Júnior, Francides Gomes da Silva; Stargerlin, Diego Martins

doi:10.12953/2177-6830.v04n01a03

Cited by 8 publications

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“…Among all Eucalyptus species, the major commercial source of 1,8‐cineole is E. globulus . The market for essential oils of Eucalyptus in Brazil is based on two products: the citronellal, obtained from E. citriodora ; and 1,8‐cineole, obtained from E. globulus .…”

Section: Introductionmentioning

confidence: 99%

The Chemical Diversity of Eucalyptus spp. Essential Oils from Plants Grown in Brazil

Nam

Tomi

Gibernau

et al. 2016

Chemistry & Biodiversity

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The composition of oil samples isolated from needles of Pinus halepensis growing in three locations in Corsica (Saleccia, Capo di Feno, and Tre Padule) has been investigated by combination of chromatographic (GC with retention indices) and spectroscopic (MS and (13)C-NMR) techniques. In total, 35 compounds that accounted for 77 - 100% of the whole composition have been identified. α-Pinene, myrcene, and (E)-β-caryophyllene were the major component followed by α-humulene and 2-phenylethyl isovalerate. Various diterpenes have been identified as minor components. 47 Oil samples isolated from pine needles have been analyzed and were differentiated in two groups. Oil samples of the first group (15 samples) contained myrcene (M = 28.1 g/100 g; SD = 10.6) and (E)-β-caryophyllene (M = 19.0 g/100 g; SD = 2.2) as major components and diterpenes were absent. All these oil samples were isolated from pine needles harvested in Saleccia. Oil samples of the second group (32 samples) contained mostly (E)-β-caryophyllene (M = 28.7 g/100 g; SD = 7.9), α-pinene (M = 12.3 g/100 g; SD = 3.6), and myrcene (M = 11.7 g/100 g; SD = 7.3). All these oil samples were isolated from pine needles harvested in Capo di Feno and Tre Padule.

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Section: Introductionmentioning

confidence: 99%

The Chemical Diversity of Eucalyptus spp. Essential Oils from Plants Grown in Brazil

Nam

Tomi

Gibernau

et al. 2016

Chemistry & Biodiversity

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“…Ao comparar o valor médio da porcentagem de extrativos (6,65%) (Figura 3) com os disponíveis na literatura para a madeira de S. amazonicum, observa-se que a porcentagem é mais próxima do observado por Vidaurre (2010) com a madeira de S. amazonicum aos 7 anos e superior em 20,30% ao observado por Silva et al (2013) para a madeira desta espécie em idade superior (15 anos).…”

Section: Composição Química Da Madeira De Schizolobium Amazonicumunclassified

“…Com relação à madeira de idade mais próxima (15 anos), foi superior aos 25,7% observado por Silva et al (2013). Gomide et al (2010), a partir de 75 amostras de madeiras de Eucalyptus spp.…”

Section: Composição Química Da Madeira De Schizolobium Amazonicumunclassified

“…O teor de holocelulose médio encontrado no presente estudo (64,71%) está próximo ao encontrado por Vidaurre (2010), com um valor inferior em 6,63% ao observado para a madeira de 15 anos estimada por Silva et al (2013). Vidaurre (2010), estudando a composição química da madeira de S. amazonicum em diferentes idades, observou um aumento do teor de celulose na madeira com o aumento da idade, devido ao espessamento da parede celular, acompanhado de redução no teor de hemicelulose.…”

Section: Composição Química Da Madeira De Schizolobium Amazonicumunclassified

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Caracterização morfológica e química da madeira de Schizolobium amazonicum aos 14 anos de plantios no estado de Rondônia

Modes¹,

Júnior²,

Filho³

et al. 2018

Sci. For.

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“…(CARVALHO, 2007). Há registro na literatura sobre o potencial da madeira da referida espécie para outros usos, tais como produção de energia (Vidaurre et al, 2012), painéis de partículas (Colli et al, 2007;Biache et al, 2012), painéis LVL (Iwakiri et al, 2010), papel e celulose (Souza et al, 2003;Silva et al, 2013).…”

Section: 115unclassified

Caracterização anatômica da matéria-prima e avaliação das propriedades tecnológicas de painéis MDF de madeira de Schizolobium amazonicum Huber ex Ducke e de resíduos de espécies da Amazônia.

Ribeiro¹

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Anatomical characterization and evaluation of technological properties MDF manufactured from wood Schizolobium amazonicum Huber ex Ducke and waste native species of the Amazon Studies about the technological quality of MDF manufactured with wood of native species from Amazon are scare. This study aimed to evaluate the quality of MDF produced with wood Schizolobium amazonicum Huber ex Ducke, waste of veneer and log (LAM and TOR, respectively) and waste of native species from Amazon (MIX). The chips, fibers and MDF, from this material, were produced in an industrial unit MDF. In the manufacture of panels 06 treatments were adopted. The following treatments were analyzed by 03 independent experiments: Experiment 1to verify the effect of the proportion of raw material (25%-75% TOR MIX; LAM 40%-75% MIX; LAM 40%-60% MIX) on the physical and mechanical properties of the panels; Experiment 2-to verify the effect of thickness (12 and 15 mm) on the physical and mechanical properties of the panels; Experiment 3also, to verify the effect of the thickness (15 and 18 mm) on the physical and mechanical properties of the panels. The MDF panels were bonded with 13% of resin based on urea formaldehyde and 0.7% paraffin emulsion. Posteriorly, samples were obtained to conduct the moisture content, bulk density, water absorption and thickness swelling, modulus of rupture, modulus of elasticity, internal bonding, resistance to face screw-holding and edge screw-holding, tests according to NBR 15316 (ABNT, 2009). Additionally, was characterized the TOR, LAM and MIX fibers, performed before and after industrial refining chip and determined the density profile of the MDF using the technique of X-ray attenuation. To check the effect of variables on the properties of MDF an analysis of variance was performed, and subsequently the Tukey test, conducted at the 5% level of error probability. Through the analysis of tests results it was conclude: In Experiment 1, MDF panels manufactured with a mixture of wood fiber in the ratio B showed better performance in the properties of APT and APF, and the panels in C ratio showed superior performance in MOR. In Experiment 2, the panels of 12 mm showed better performance in the properties of LI and APF, and 15 mm panels perform better in AA2h, AA24h and IE24H; In Experiment 3, the panels of 18 mm panels exhibited better performance on the properties of IE2h, IE24h, MOR and MOE in static bending. 15 mm panels outperformed the properties of APT and APF. With the exception of property values LI, all MDF panels evaluated in this study met the required values by NBR 15316-2 (ABNT, 2009), for the manufacture of furniture to be used in dry conditions.

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Caracterização Tecnológica da Madeira de Schizolobium amazonicum para a Produção de Celulose Kraft

Cited by 8 publications

References 0 publications

The Chemical Diversity of Eucalyptus spp. Essential Oils from Plants Grown in Brazil

The Chemical Diversity of Eucalyptus spp. Essential Oils from Plants Grown in Brazil

Caracterização morfológica e química da madeira de Schizolobium amazonicum aos 14 anos de plantios no estado de Rondônia

Caracterização anatômica da matéria-prima e avaliação das propriedades tecnológicas de painéis MDF de madeira de Schizolobium amazonicum Huber ex Ducke e de resíduos de espécies da Amazônia.

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