A low-corrosivity structural timber

Yu, Sicen; Liu, Yu; Feng, Shijie; Siciliano, Amanda Pia; Hu, Liangbing; Liu, Ping

doi:10.1016/j.xcrp.2022.100921

Cited by 3 publications

(3 citation statements)

References 30 publications

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“…less energy intensive, unlike whole wood delignification processes which typically require longer delignification times (e.g., 6-12 h). [31][32][33][34] Data on the cost of bonding per square meter of the bonded wood are shown in Supporting Information Table S2. With this analysis, we estimate that the production cost of the cellulose-bonded wood interface is about 0.064 $ m À2 , which is lower than the cost of bonding wood with UF resin adhesives.…”

Section: Resultsmentioning

confidence: 99%

Bonding Wood via Cellulose Aqueous Solution as Cell Wall Adhesive

Huang,

Cao,

Huang

et al. 2024

Adv Eng Mater

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The size of the wood plays a crucial role in determining its ultimate application. In order to break through the dimensions of natural wood, multiple pieces of wood are often bonded together with adhesives to form larger sizes. The physical and chemical properties of adhesives are different from those of natural wood, and this difference often leads to failure of the adhesive bonding interface. Here an aqueous solution of dissolved cellulose has been used as an adhesive to bond wood. The regenerated cellulose produced by recrystallization will combine the wood fibers that originally existed on the wood surface cell wall. The resulting bonding wood interface consists of densely packed regenerated cellulose and wood cellulose fibers, which possess strong hydrogen bonds and physical entanglements. The shear strength has surpassed those of typical bio‐based adhesives and commercial adhesives. The same composition as natural wood endows this bonding interface with physical and chemical properties similar to natural wood such as weatherability. Bonding wood with this cellulose aqueous solution as an adhesive reduces our dependence on petrochemical‐based adhesives, and this facile and pressureless bonding strategy offers a promising route to manufacture sustainable wood composites with robust bonding interfaces.This article is protected by copyright. All rights reserved.

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Section: Resultsmentioning

confidence: 99%

Bonding Wood via Cellulose Aqueous Solution as Cell Wall Adhesive

Huang,

Cao,

Huang

et al. 2024

Adv Eng Mater

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“…Densified wood is an emerging class of engineered wood material that is light, sustainable, scalable, and low-corrosivity. − Cellulose-based materials have been reported for exhibiting some degree of self-healing ability. , Here, we report a thin densified wood layer, termed a densified wood veneer, that is mechanically strong, highly resistant to mechanical damage, and capable of self-recovery triggered by exposure to water (Figure ). Further, the layer greatly reduces ion transport.…”

mentioning

confidence: 82%

“…Chemical treatment selectively removes hemicelluloses and lignin, making wood a low-corrosivity material to metal (Figure S1). 33 Densified wood veneer has a uniform thickness of 130 μm with long and highly aligned cellulose fibers (Figure 2A). Analysis by cryo-focused ion beam (cryo-FIB) and scanning electron microscopy (SEM) shows the structure is highly dense with no obvious porosity (Figure 3G,H).…”

mentioning

confidence: 99%

Damage-Tolerant Wood Layers for Corrosion Protection of Metal Structures

Yu,

Liu,

Chen

et al. 2023

Nano Lett.

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Mechanically strong and damage-tolerant corrosion protection layers are of great technological importance. However, corrosion protection layers with high modulus (>1.5 GPa) and tensile strength (>100 MPa) are rare. Here, we report that a 130 μm thick densified wood veneer with a Young's modulus of 34.49 GPa and tensile strength of 693 MPa exhibits both low diffusivity for metal ions and the ability of self-recovery from mechanical damage. Densified wood veneer is employed as an intermediate layer to render a mechanically strong corrosion protection structure, referred to as "wood corrosion protection structure", or WCPS. The corrosion rate of low-carbon steel protected by WCPS is reduced by 2 orders of magnitude than state-of-the-art corrosion protection layers during a salt spray test. The introduction of engineered wood veneer as a thin and mechanically strong material points to new directions of sustainable corrosion protection design.

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