Development of laminated bamboo lumber with high bond strength for structural uses by O2 plasma

Wu, Jianfei; Yuan, Hongmei; Wang, Wei; Wu, Qirong; Guan, Xiao; Lin, Juan

doi:10.1016/j.conbuildmat.2020.121269

Cited by 12 publications

(4 citation statements)

References 47 publications

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“…With O2 plasma modification times of 6 min and 12 min, the wet bonding strength of LBL products increased by 58.58% and an impressive 75.69% when compared to conventional plywood. Additionally, the wettability of both green bamboo and yellow bamboo significantly improved following O2 plasma modification [65].…”

Section: Plasma Modificationmentioning

confidence: 99%

See 1 more Smart Citation

Modification and Application of Bamboo-Based Materials: A Review—Part I: Modification Methods and Mechanisms

Zheng,

Yan,

Lou

et al. 2023

Forests

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In light of continual societal advancement and escalating energy consumption, the pursuit of green, low-carbon, and environmentally friendly technologies has become pivotal. Bamboo, renowned for its diverse advantages encompassing swift growth, ecological compatibility, robust regenerative properties, commendable mechanical characteristics, heightened hardness, and abundant availability, has discovered applications across various domains, including furniture and construction. Nevertheless, natural bamboo materials are plagued by inherent limitations, prominently featuring suboptimal hydrophobicity and vulnerability to fracture, thereby constraining their broad-scale application. Thus, the paramount concern is to enhance the performance of bamboo materials through modification. However, prevailing reviews of bamboo modification predominantly concentrate on physical or chemical approaches, resulting in a conspicuous absence of a comprehensive overview of bamboo modification techniques. This review explores an array of bamboo treatment modalities and delivers a valuable assessment of bamboo modification, offering significant guidance for forthcoming bamboo enhancement and utilization endeavors.

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Section: Plasma Modificationmentioning

confidence: 99%

“…This process can improve its wettability, enhance adhesion, and refine dyeing capabilities, among other benefits. Plasma modification allows for the customization of bamboo's surface properties, making it suitable for more sophisticated applications [64,65].…”

Section: Plasma Modificationmentioning

confidence: 99%

Modification and Application of Bamboo-Based Materials: A Review—Part I: Modification Methods and Mechanisms

Zheng,

Yan,

Lou

et al. 2023

Forests

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“…11 As a result, improving the bonding performance could significantly reduce production costs and accelerates the bamboo industry's development. Many studies, using a variety of surface modifications of bamboo, have enhanced the gluability property of bamboo, for example, oil-heat treatment, 12 plasma treatment, 13,14 ultrasonic treatment, 15 high-voltage electrostatic treatment, 16 and high-frequency heat treatment, 17 etc. These methods have apparent disadvantages such as complex operation, high-energy consumption, and environmental pollution, although the gluability performance is improved.…”

Section: Introductionmentioning

confidence: 99%

Improving the wet adhesive bonding of bamboo urea‐formaldehyde adhesive using styrene acrylate by controlling monomer ratios

Liang

Chen

et al. 2022

J of Applied Polymer Sci

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The utilization of bamboo resources can significantly alleviate the wood shortage and facilitate CO2 neutralization. However, the adhesive bonding performance of bamboo is not ideal, which greatly limits its application. Therefore, the biggest challenge is to explore a simple and effective method to enhance the bonding between bamboo and adhesive. In this study, we synthesized three butyl acrylate‐styrene (BS) emulsions with different monomer ratios and incorporated them into urea‐formaldehyde (UF) resins to prepare butyl acrylate‐styrene modified urea‐formaldehyde (BUF) adhesives. Results show that BS emulsion not only prolongs the workability time of UF adhesives (95 s–108 s), but also reduces the free formaldehyde content (0.38%–0.26%). Specifically, BS emulsion with the highest hard/soft monomer ratio makes BUF adhesive the lowest activation energy, showing the accelerated curing reaction. Specifically, the prepared laminated bamboo‐veneer lumber (LBVL) exhibits the best wet‐bonding strength and meets the Chinese National Standard, suggesting that BS emulsion with a higher hard/soft monomer ratio can enhance bonding performance. Thus, this efficient method can not only enhance various adhesive properties, but also improves the bonding performance on LVBL, which can greatly ease the shortage of wood resources and speed up the development of the bamboo industry.

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“…However, most of the research on wood and bamboo is focused on the surface engineering of the material, such as the introduction of coating and reasonable design [ 16 , 17 ]. Moreover, the research on enhancing the gluability properties of bamboo mostly focuses on the performance of the bamboo materials itself and rarely involves the regulation of the properties of the adhesives [ 18 , 19 , 20 , 21 , 22 , 23 ]. Currently, the main commonly used adhesives include amino, phenolic, and isocyanate, among which 95% of the adhesives are formaldehyde-based, with urea-formaldehyde (UF) as the most predominant [ 24 ].…”

Section: Introductionmentioning

confidence: 99%

Surfactant-Induced Reconfiguration of Urea-Formaldehyde Resins Enables Improved Surface Properties and Gluability of Bamboo

Liang

Zheng

et al. 2021

Polymers

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The high-efficiency development and utilization of bamboo resources can greatly alleviate the current shortage of wood and promote the neutralization of CO2. However, the wide application of bamboo-derived products is largely limited by their unideal surface properties with adhesive as well as poor gluability. Herein, a facile strategy using the surfactant-induced reconfiguration of urea-formaldehyde (UF) resins was proposed to enhance the interface with bamboo and significantly improve its gluability. Specifically, through the coupling of a variety of surfactants, the viscosity and surface tension of the UF resins were properly regulated. Therefore, the resultant surfactant reconfigured UF resin showed much-improved wettability and spreading performance to the surface of both bamboo green and bamboo yellow. Specifically, the contact angle (CA) values of the bamboo green and bamboo yellow decreased from 79.6° to 30.5° and from 57.5° to 28.2°, respectively, with the corresponding resin spreading area increasing from 0.2 mm2 to 7.6 mm2 and from 0.1 mm2 to 5.6 mm2. Moreover, our reconfigured UF resin can reduce the amount of glue spread applied to bond the laminated commercial bamboo veneer products to 60 g m−2, while the products prepared by the initial UF resin are unable to meet the requirements of the test standard, suggesting that this facile method is an effective way to decrease the application of petroleum-based resins and production costs. More broadly, this surfactant reconfigured strategy can also be performed to regulate the wettability between UF resin and other materials (such as polypropylene board and tinplate), expanding the application fields of UF resin.

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Development of laminated bamboo lumber with high bond strength for structural uses by O2 plasma

Cited by 12 publications

References 47 publications

Modification and Application of Bamboo-Based Materials: A Review—Part I: Modification Methods and Mechanisms

Modification and Application of Bamboo-Based Materials: A Review—Part I: Modification Methods and Mechanisms

Improving the wet adhesive bonding of bamboo urea‐formaldehyde adhesive using styrene acrylate by controlling monomer ratios

Surfactant-Induced Reconfiguration of Urea-Formaldehyde Resins Enables Improved Surface Properties and Gluability of Bamboo

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