Combining mercury intrusion porosimetry and fractal theory to determine the porous characteristics of wood

Zhao, Jun; Yang, Lin; Cai, Yingchun

doi:10.1007/s00226-020-01243-9

Cited by 28 publications

(2 citation statements)

References 20 publications

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“…According to the fractal principle, it is assumed that wood is a set of N capillaries with pore radius r, which can be expressed by the following formula [39]:…”

Section: Derivation Of Fractal Dimension Of Wood Porositymentioning

confidence: 99%

Evaluation of Water Transfer Capacity of Poplar with Pectinase Treated under the Solar Interface Evaporation

Xiong¹,

Li²,

Wei³

et al. 2023

Journal of Renewable Materials

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Poplar wood, which was used as the absorption material for the solar-driven interfacial evaporation, was treated for 3 days, 6 days and 9 days with the pectinase, and then was simulated for photothermal evaporation test at one standard solar radiation intensity (1 kW⋅m −2 ). The effects of pectinase treatment on cell passage and water migration capacity of poplars were analyzed by the mercury intrusion porosimetry, the scanning electron microscope and fractal theory. It was found that the pit membrane and the ray parenchyma cells of poplar wood were degraded and destroyed after pectinase treatment. Compared with the untreated poplar wood, the evaporation rate of three sections of the specimen was changed. Especially the evaporation rate of radial and tangential direction was significantly increased. At the same time, based on the experimental data and fractal dimension deduction, fractal characteristics could be found in that the structure of poplars treated with pectinase. The porosity decreased with the increase of the fractal dimension in a certain range. It was shown that it is feasible to evaluate solar-driven water migration capacity by using fractal theory.

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“…According to the fractal principle, it is assumed that wood is a set of N capillaries with pore radius r, which can be expressed by the following formula [39]:…”

Section: Derivation Of Fractal Dimension Of Wood Porositymentioning

confidence: 99%

Evaluation of Water Transfer Capacity of Poplar with Pectinase Treated under the Solar Interface Evaporation

Xiong¹,

Li²,

Wei³

et al. 2023

Journal of Renewable Materials

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show abstract

“…As a natural anisotropic and nonhomogeneous porous material, wood has a multilevel pore structure. Mastering wood pore characteristics is also the basis for studying wood macroscopic physical properties (Jang E-S et al 2018 Tan Y et al 2020; Zhao J et al 2021;Jang ES et al 2019). For example, wood pores provide accommodation space and transmission channels for water.…”

Section: Introductionmentioning

confidence: 99%

Effect of pore characteristics on the dielectric constant of wood: considering the Moisture content and Frequency change

Qin,

Xu,

Guo

et al. 2024

Preprint

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Electromagnetic waves are gradually used in wood inspection and treatment. Three important parameters need to be considered in the application of this method, including moisture content (MC), porosity, and dielectric constant (ε), which affect the effectiveness of the application of electromagnetic waves, and these parameters can interact with each other. This study’s objective is to elucidate the effect and mechanism of porosity on the ε of wood with different MCs (absolute dry to saturated) in the frequency(f) range of 1 Hz-107 Hz. The pore parameters of four wood species are obtained by mercury piezometer and optical microscope, and the ε of wood with different MCs is obtained by dielectric spectrometer. The results indicate that the effect of porosity on the ε of wood needs to consider both f and MC. Relationship between porosity and ε of absolute dry wood shows opposite patterns in different f bands. When f ≤ 200 Hz, the porosity is positively correlated with ε. When f > 200 Hz, the porosity is negatively correlated with ε. However, the effect of f on the ε with the increase of MC is complicated. When f is low, the correlation among MC, porosity and ε is not significant, and as the f increases, the relationship between MC and ε becomes linear, and the growth rate of ε is large for wood with small porosity. The results of this study provide a reference for use of ε to detect wood pore characteristics and MC.

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A comprehensive evaluation of axial gas permeability in wood using XCT imaging

Zhao

Li²,

Lv³

et al. 2022

Wood Sci Technol

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Combining mercury intrusion porosimetry and fractal theory to determine the porous characteristics of wood

Cited by 28 publications

References 20 publications

Evaluation of Water Transfer Capacity of Poplar with Pectinase Treated under the Solar Interface Evaporation

Evaluation of Water Transfer Capacity of Poplar with Pectinase Treated under the Solar Interface Evaporation

Effect of pore characteristics on the dielectric constant of wood: considering the Moisture content and Frequency change

A comprehensive evaluation of axial gas permeability in wood using XCT imaging

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