Permeability of poplar normal wood and tension wood bioincised by Physisporinus vitreus and Xylaria longipes

Emaminasab, Mohammad; Tarmian, Asghar; Pourtahmasi, Kambiz

doi:10.1016/j.ibiod.2015.09.003

Cited by 18 publications

(10 citation statements)

References 13 publications

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“…Further studies on the effect of tyloses obstructing the vessel and pits, especially vessel-ray and intervessel pits, are also needed. In addition to the inherent complexity of the wood raw material, wood processing, e.g., heat-treating temperature conditions (Jang and Kang 2019), microwaves treatment (Nasswettrová et al 2014), and bio-treatment by wood-decaying fungi (Schwarze and Schuber 2011;Emaminasab et al 2015), can influence its permeability. The data in this study combined with new research in the area of wood processing can make little-known species, such as Parkia gigantocarpa, interesting for the forest-based industry.…”

Section: Permeability Relationship and Anatomical Structurementioning

confidence: 99%

“…This property is influenced by the material porosity, occlusion degree of the spaces where the fluid flows, diameter of empty spaces, fluid viscosity, and the interaction of fluid with the vessel wall of the material (Siau 1984;Jinman et al 1991;Silva et al 2010;Ahmed and Chun 2011;Sjökvist et al 2020). In addition to the effect of these characteristics, the following can modify the permeability of wood: sample size (Bramhall 1971), direction of the air or liquid flow in the sample (Ahmed and Chun 2011;Monteiro et al 2020), microwaves treatment (Nasswettrová et al 2014), bio-treatment by wood-decaying fungi (Schwarze and Schuber 2011;Emaminasab et al 2015), and changes in the temperature of the heat treatment (Jang and Kang 2019).…”

Section: Introductionmentioning

confidence: 99%

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Permeability of Parkia gigantocarpa as affected by wood anatomy

Baraúna

Lima

Monteiro

et al. 2021

BioRes

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This study evaluated Parkia gigantocarpa wood from the Amazon rainforest for its permeability to air and liquid in the longitudinal direction. The influence of anatomical characteristics on the permeability of wood was characterized. Three trees were collected in the State of Pará, Brazil. Samples were converted into specimens and subjected to permeability tests and anatomical characterization. Permeability was obtained in the laboratory, and the results were compared with the permeability data estimated by a longitudinal flow model for hardwoods. The air permeability of wood was 140.2 x 10-9 m3.[m.(N.m-2).s]-1 liquid permeability was 3.28 x 10-9 m3.[m.(N.m-2).s]-1. The fiber length and thickness of the cell wall had a direct and positive relationship with the permeability, whereas fiber width presented an inverse relationship with permeability. The vessel frequency and diameter did not influence the permeability of wood from the heartwood of P. gigantocarpa that presented high permeability and potential for easy wood drying and treatment.

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Section: Permeability Relationship and Anatomical Structurementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Permeability of Parkia gigantocarpa as affected by wood anatomy

Baraúna

Lima

Monteiro

et al. 2021

BioRes

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“…(Rogério et al 2010) compared the water permeability of other two eucalypt woods (Eucalyptus grandis and Corymbia citriodora) and concluded that the permeability of the Eucalyptus grandis wood was about 20% higher due to the average diameter of its vessels, which was 50% larger. (Emaminasab et al 2015) a rmed that the effectiveness of the vessels in conducting liquids is due to their large diameter and the presence of perforations that axially connect them to each other.…”

Section: Introductionmentioning

confidence: 99%

“…Regarding softwoods, the tracheids are the main uid conducting anatomical elements and correspond to about 90% of the overall morphological constitution in volume (Brändström 2001). The smaller diameter of the tracheids from softwoods in relation to vessels from hardwoods explains the lower permeability of softwoods compared to hardwoods (Emaminasab et al 2015). Thus, tracheids differ from vascular and other axial anatomical elements due to their small diameters and absent perforations (i.e.…”

Section: Introductionmentioning

confidence: 99%

“…Thus, tracheids differ from vascular and other axial anatomical elements due to their small diameters and absent perforations (i.e. they are not axially interconnected) (Emaminasab et al 2015). Although they have no axial perforations, the tracheids are laterally interconnected by small openings called radial pits, which vary in diameter from 0.2 to 20 µm (Zabel and Morrell 2020).…”

Section: Introductionmentioning

confidence: 99%

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Vacuum infusion as a novel method to determine wood permeability

et al. 2022

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This study aims to propose a novel method, vacuum infusion process, to measure the longitudinal permeability of wood. The vacuum infusion method uses a vacuum bag sealed over the brous material, with a vacuum inlet and a vacuum outlet. It can be performed on top of any at surface, and its process is relatively swift. Six different woods (Pinus elliottii, Araucaria angustifolia, Ochroma pyramidale, Cedrela ssilis, Tectona grandis, and Eucalyptus grandis) and three different uids (water, soybean oil, and furfuryl alcohol) were selected for the study. After preliminary evaluations of morphology, chemical characteristics, density, porosity, contact angle and capillary pressure, three woods and two uids were selected for the actual permeability measurements. The highest permeability was obtained for the Ochroma pyramidale wood, being 0.45-7.49×10 -11 m 2 . This wood was 58-88% and 18-62% more permeable than the Pinus elliottii and Eucalyptus grandis woods, respectively. The uid was found to have some in uence on the experiment and therefore must be carefully selected. The difference in permeability of the woods was attributed to morphological characteristics, especially the presence of axial vessels, which are 60% larger for Ochroma pyramidale wood compared to Eucalyptus grandis wood, while Pinus elliottii has no vessels. The amount of voids in all woods, nevertheless, was similar, as well as the evaluated chemical characteristics and structural anatomical elements (tracheids and/or bers). In all, the determination of apparent permeability using the vacuum infusion process is practical and with good accuracy, yielding results similar to those from other methods in the literature.

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Effect of the temperature of the heat treatment of pine wood on subsequent in situ polymerization with poly(methyl methacrylate)

Acosta

Díaz

Amico

et al. 2022

Biofuels Bioprod Bioref

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The objective of this study was to evaluate a two-step Pinus elliottii modification process comprising thermal treatment at different temperatures (180 °C, 200 °C, or 220 °C) for 2 h followed by vacuum-pressure treatment and in situ polymerization with a highly pure solution of poly (methyl methacrylate) (PMMA). The treated samples were then characterized based on weight loss, weight gain, density, Fourier transform infrared spectroscopy, chemical constituents, thermal stability, dimensional stability, surface hydrophobicity, morphology, color changes, and mechanical properties. Thermal modification prior to impregnation increased thermal stability (~100%-150%) in comparison with heattreated pine wood. Furthermore, after the two-step treatment, the color presented similar patterns and a lower level of water uptake (~40%-60%). Post-treatment with PMMA recovered the losses in both stiffness and strength brought by thermal modification at 180 °C and 200 °C; however, the treatment at 220 °C was found to be unsuitable for the two-step process.

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Permeability of poplar normal wood and tension wood bioincised by Physisporinus vitreus and Xylaria longipes

Cited by 18 publications

References 13 publications

Permeability of Parkia gigantocarpa as affected by wood anatomy

Permeability of Parkia gigantocarpa as affected by wood anatomy

Vacuum infusion as a novel method to determine wood permeability

Effect of the temperature of the heat treatment of pine wood on subsequent in situ polymerization with poly(methyl methacrylate)

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