Parametric study of a yellow birch surface impregnation process

Frias, Mariana; Blanchet, Pierre; Bégin‐Drolet, André; Triquet, Juliette; Landry, Véronic

doi:10.1007/s00107-021-01700-7

Cited by 8 publications

(6 citation statements)

References 33 publications

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“…The low CR observed in this study can be attributed to lateral impregnation of wood through only one surface (tangential surface and/or radial direction, according to the grain orientation of the exposed surface). The average CR was found to be around 9% for SM across all five formulations, which was expected based on previous studies (Frias et al, 2021;Triquet et al, 2021). The samples were sealed with aluminum tape, which caused air to become trapped in the sample.…”

Section: Chemical Retentionsupporting

confidence: 75%

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Chemical surface densification of sugar maple through Michael addition reaction

Akbari,

Vanslambrouck,

Landry

2024

Wood Sci Technol

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Wood densification is a technique to enhance wood density and hardness, presenting a promising solution to expand wood use across various applications. However, current densification methods have cost and environmental impact limitations. This project introduces a potential environmentally friendly approach involving surface chemical densification through in-situ polymerization, using carbon Michael addition reaction between biobased acrylate and malonate monomers. This reaction, conducted in mild conditions with low energy and solvent consumption, aims to enhance wood densification while minimizing environmental impact. Various malonate-acrylate systems were formulated, and were optimized based on their viscosity, conversion rate, glass transition temperature, crosslinking density, and hardness. Then, sugar maple wood samples were densified with the most effective formulations. Monomers with lower viscosity demonstrated higher level of chemical retention. Density profile and penetration depth were also higher for the samples impregnated with lower viscosity formulations, as confirmed by X-Rray densitometer and scanning electron microscopy. Confocal Raman spectroscopy confirmed that formulations successfully filled lumens and vessels without reacting with the cell wall components. The brinell hardness was used to determine the hardness of natural and densified woods. One-way ANOVA data analysis showed a significant increase in hardness of densified samples compared to untreated wood; however, based on TUKEY Anova analysis, no noticeable difference was reported between impregnated 2 samples with different formulations. Overall, results showed the potential effectiveness of the Michael addition reaction in wood impregnation.

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Section: Chemical Retentionsupporting

confidence: 75%

“…The formulation viscosity is a parameter impacting the penetration of monomers into the vessels or cell walls. Frias et al showed that low monomer viscosity leads to higher amounts of impregnated monomer (Frias, Blanchet, Bégin-Drolet, Triquet, & Landry, 2021). The viscosities of primary formulations are listed in Table 5.…”

Section: Viscositymentioning

confidence: 99%

Chemical surface densification of sugar maple through Michael addition reaction

Akbari,

Vanslambrouck,

Landry

2024

Wood Sci Technol

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“…The anatomical orientation of wood structures significantly influences the wood impregnation process (Frias et al, 2021;Hass et al, 2012;Tondi et al, 2013;Ponomarev et al, 2021bPonomarev et al, , 2022. The obtained images of the distribution of the impregnating composition (Figure 4b and d) show that its movement occurs along the path of least resistance in the end direction along large anatomical structures, such as vessels and fibers.…”

Section: Study Of the Porosity And Distribution Of The Impregnating C...mentioning

confidence: 96%

Improving the Performance Properties of Impregnated Wood with its Subsequent Utilization into a Biochar Sorbent

Zhuzhukin,

Tomina,

Ponomarev

et al. 2023

Floresta Ambient.

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Wood is a common natural polymeric material with hydrophilicity and low biostability with a limited service life. The article considers the issue of using a multicomponent composition (used motor oil, rosin, paraffin) for impregnating birch wood and giving it increased water resistance, bio-and dimensional stability. The possibility of recycling the used impregnated wood to obtain a biochar adsorbent was shown. The impregnating composition was characterized by the FTIR method to assess the possibility of interaction between the functional groups of the impregnating composition and wood. Moisture and water absorption decreased by more than 4 and 6 times. Volumetric swelling decreased by 57% relative to untreated wood, the effectiveness against swelling after 30 days was 46%. The high efficiency of the impregnating composition against the wood biodegradation has been established. The method of micro-X-ray tomography determined a high degree of filling of the anatomical structures of wood.

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“…The CA preservative was impregnated into lodgepole pine and scotch pine laminates through a highpressure tank using Bethell's full-cell process (Frias et al 2021). The full-cell process was divided into three stages.…”

Section: Preparation Of Preservative Treated Glulam Laminatementioning

confidence: 99%

Effect of copper azole preservative on the laminate’s surface wettability and interlaminar shear performance of preservative treated Glulam

Yang¹,

Liu²,

Wang³

et al. 2023

Preprint

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Copper azole (CA) preservative applied to glulam improves the durability of glulam. The purpose of this study is to evaluate the effect of CA preservative on the surface bonding quality of laminates under different surface conditions. Surface morphology and wettability of CA preservative treated laminate were investigated. A comparison was also made of interlaminar shear performance obtained from preservative treated glulam under different environmental conditions. The results indicate that CA preservative adheres to wood fibers and occupies part of wood voids, which has a significant adverse effect on water permeability of preservative treated laminate. Planing can effectively improve the surface wettability of preservative treated laminate. CA preservative tiny particles on the planed laminate surface are distributed relatively uniformly, and the proportion is smaller than that of the unplaned laminate. The interlaminar shear strength of preservative treated glulam made of planed laminates is at least 15% higher than that of the glulam made of unplaned laminates. No matter in hot and humidity environment or natural aging tests, preservative treated glulam glued by resorcinol formaldehyde (RF) adhesive performed better than that by polyurethane (PUR) adhesive. It is recommended that in order to obtain a reliable preservative treated glulam quality, the 0.6mm planing of laminate and RF adhesive are required.

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Parametric study of a yellow birch surface impregnation process

Cited by 8 publications

References 33 publications

Chemical surface densification of sugar maple through Michael addition reaction

Chemical surface densification of sugar maple through Michael addition reaction

Improving the Performance Properties of Impregnated Wood with its Subsequent Utilization into a Biochar Sorbent

Effect of copper azole preservative on the laminate’s surface wettability and interlaminar shear performance of preservative treated Glulam

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