Influence of the impregnation with boron compounds on the physical properties of Eucalyptus wood

Baraúna, Edy Eime Pereira; Paes, Juarez Benigno; Monteiro, Thiago Campos; Moulin, Jordão Cabral; Ferreira, Gabriella Leite; Silveira, Amanda Grassmann da; Baldin, Talita; Sette, Carlos Roberto; Arantes, Marina Donária Chaves

doi:10.18671/scifor.v48n128.09

Cited by 6 publications

(5 citation statements)

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“…In contrast, tangential shrinkage increased after treatment. A similar pattern was observed by Baraúna et al (2021), who discovered that boron-treated eucalyptus had a higher value in tangential shrinkage, which could be caused by the increase of density.…”

Section: Physical Propertiessupporting

confidence: 84%

“…Similarly, the use of a suitable preservative for the environmental conditions must be evaluated by examining the impact on the strength properties. Several studies have found that boron-based preservative treatment improves physical properties by increasing density and dimensional stability (Gecer et al 2015;Baraúna et al 2021;Aristri et al 2021). In terms of strength, boron-based preservatives have been reported to affect it to some extent (Kartal et al 2008;De Souza Almeida et al 2019).…”

Section: Introductionmentioning

confidence: 99%

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Effect of preservative treatment on physical and mechanical properties of bamboo (Gigantochloa scortechinii) strips

Baharuddin

Lee

Uyup

et al. 2022

BioRes

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Using a vacuum pressure cylinder, Gigantochloa scortechinii was treated with boron and copper chrome boron (CCB) preservative at different concentrations of 2% and 3%. The treatability of untreated and treated bamboo, as well as its physical and mechanical properties, were investigated. Both preservatives showed a high level of penetration into the bamboo strips. Weight percent gain (WPG) and extent of retention of CCB-treated bamboo strips were higher than those of the boron-treated samples. Swelling and shrinkage were proportionately reduced with treatment, with a significant difference between radial and tangential dimensions. When compared to untreated bamboo, treated bamboo showed a greater reduction in radial swelling but a lower reduction in shrinkage. The mechanical properties of untreated and treated samples differed in modulus of elasticity (MOE) and compression. Untreated samples had the highest MOE of 26,100 N.mm-2, while boron and CCB had MOE values of 22,800 and 22,900 N.mm-2, respectively. Copper chrome boron samples had the highest compression value of 86.3 N.mm-2, while the boron and untreated samples had values of 84.0 and 78.3 N.mm-2, respectively.

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Section: Physical Propertiessupporting

confidence: 84%

Section: Introductionmentioning

confidence: 99%

Effect of preservative treatment on physical and mechanical properties of bamboo (Gigantochloa scortechinii) strips

Baharuddin

Lee

Uyup

et al. 2022

BioRes

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“…Baysal et al [40] stated that water absorption levels of aqueous solutions of Ba+Bx were much higher than that of control specimens. Baraúna et al [41] reported that boron compounds at different concentrations (4% and 8%) significantly influenced tangential, radial and volumetric shrinkage of eucalyptus wood.…”

Section: Resultsmentioning

confidence: 99%

Selection of materials with entropy-topsis by considering technological properties of impregnated wood

2022

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In this study, the hybrid Entropy-TOPSIS method is applied to the problem of selecting an optimal impregnation material with maximum performance requirements. Swelling, shrinkage, bending strength, modulus of elasticity, compressive strength and shock strength values were used to rank the impregnation materials. Barite, boric acid, borax and their mixture were used to impregnation material. The impregnation materials used in the study generally increased the physical and mechanical properties of the spruce specimens, except swelling. The impregnation materials reduced the swelling of the specimens. According to the entropy method, the most important factor affecting the success of the impregnation process was the modulus of elasticity. According to the TOPSIS method, the most successful impregnation material was a mixture of barite and boric acid. Moreover, the proposed method was compared with other Multi-Criteria Decision-Making (MCDM) approaches and it can be used to ranking of impregnation materials with reliable accuracy.

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“…All of the studied ionic liquids are tensioactive, which improves the wetting of the wood capillaries and aids adsorption and diffusion (Figure 1f). The uptake and swelling are marginally higher for spruce due to its looser microstructural packing than beech [31,32]. IL penetration into the wood determines much higher relative volume modifications (∆V, %, Figure 1d) than in the case of water, which makes ILs useful as the transport media of various preservatives and impregnates (oligomeric resins, monomers) into the bulk of the wood.…”

Section: Resultsmentioning

confidence: 99%

Alkylimidazolium Ionic Liquids Absorption and Diffusion in Wood

Croitoru

Roată

2021

Applied Sciences

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Ionic liquids represent a class of highly tunable organic compounds responsible for many applications in the domain of wood-based materials. It has often been emphasized that the use of ionic liquids derives from their high affinity for lignocellulose and their good penetration ability into wood structures. This paper discusses the sorption ability of different types of 1-alkyl-3-methylimidazolium ionic liquids with lateral alkyl chains, ranging from ethyl to hexyl into spruce and beech wood, as a function of their cation molecular mass, anion type (chloride, tetrafluoroborate, acetate), and intrinsic properties (surface tension and kinematic viscosity) at room temperature. All the studied ionic liquids present high relative uptake values at the equilibrium, ranging from 11.2% to 69.7%. The bulk diffusion coefficients of the ionic liquids into the wood range from 2 × 10−3 to 28 × 10−3 mm2/min, being higher in the longitudinal direction for both types of wood. The value of the diffusion coefficients for 1-ethyl-3-methylimidazolium chloride is only 25% lower than that for water, despite the obvious differences in viscosity and surface tension, demonstrating a good penetration ability and the potential for wood industry-related applications (as impregnation compound carriers and preservatives).

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Influence of the impregnation with boron compounds on the physical properties of Eucalyptus wood

Cited by 6 publications

References 0 publications

Effect of preservative treatment on physical and mechanical properties of bamboo (Gigantochloa scortechinii) strips

Effect of preservative treatment on physical and mechanical properties of bamboo (Gigantochloa scortechinii) strips

Selection of materials with entropy-topsis by considering technological properties of impregnated wood

Alkylimidazolium Ionic Liquids Absorption and Diffusion in Wood

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