Evaluation of Water Absorption and its Influence on the Physical-Mechanical Properties of Bamboo-Bundle Laminated Veneer Lumber

Li, Haidong; Yu, Xingwen; Deng, Jiyong; Cheng, Hui‐Ming; Chen, Fuming; Wang, Ge

doi:10.15376/biores.11.1.1359-1368

Cited by 6 publications

(6 citation statements)

References 17 publications

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“…The higher water absorption in the first days by the four-layer laminate is probably due to the higher panel thicknesses, wherein the wood surface area was higher than the interlaminar surface area, considering that the lateral ends of the laminates were not sealed with resin after the cutting process. In this sense, recent research corroborates how weight gain can mostly be ascribed to exposed wood, which is the most prone to absorbing water [ 9 , 35 ].…”

Section: Resultsmentioning

confidence: 74%

Wood-Poly(furfuryl Alcohol) Prepreg: A Novel, Ecofriendly Laminate Composite

Acosta,

Esteves,

Cruz

et al. 2023

Materials

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Prepregs are commonly fabricated with non-renewable petroleum-based materials. To reduce the impact of the manufacturing of these materials and to produce more sustainable prepregs, this research aims to manufacture poly(furfuryl alcohol)/wood veneer prepregs and their posterior molding in laminate composites. For this purpose, the vacuum infusion process was used to impregnate the wood veneers, and compression molding was applied to manufacture three- and four-layer laminate composites. Scanning electronic microscopy was used to evaluate the impregnation. the laminate manufacturing and differential scanning calorimetry were used to predict the shelf-life of the prepregs, Fourier-transform infrared was used to evaluate the induced hydrolysis resistance, and thermogravimetric analysis was used to determine the thermal degradation of the laminates. Moreover, water uptake and flexural, compressive, and tensile properties were evaluated. The kinetic models were effective and showed a shelf life for the laminates of approximately 30 days in storage at −7 °C, which is an interesting result for laminates with lignocellulosic materials. FTIR proved the laminates’ excellent resistance to hydrolysis. The water absorption, thermal stability, and mechanical properties did not differ as the amount of wood veneer increased, but these results were up to ~40% higher compared with unidirectional wood laminates found in the literature, which is probably linked to the excellent interface observed with SEM.

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Section: Resultsmentioning

confidence: 74%

Wood-Poly(furfuryl Alcohol) Prepreg: A Novel, Ecofriendly Laminate Composite

Acosta,

Esteves,

Cruz

et al. 2023

Materials

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“…Bamboo fibers are naturally porous and comprised of countless of hydroxyl groups, vascular bundles, and parenchyma tissues. Therefore, the hygroscopic nature of bamboo facilitated the higher moisture absorption levels (Li et al 2016) which increased the moisture absorption rate. Other studies found that the moisture absorption rate of silicone composites increased significantly as the fiber reinforcement percentage increased (Namitha et al 2013;Ismail et al 2019).…”

Section: Moisture Absorption Testmentioning

confidence: 99%

Physical and mechanical properties of bamboo-silicone biocomposites (BaSiCs)

Abidin

Mahmud

Manssor

et al. 2022

BioRes

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Silicone rubber biocomposites were prepared with 0%, 4%, 8%, 12%, and 16% bamboo fiber as reinforcement. The compressive set behavior of the samples was compared between the samples that were tested before and after immersion in water. The compression set values for the samples that were immersed in the water were lower than the samples that were not immersed in the water. The moisture absorption rate of the bamboo-silicone biocomposites (BaSiCs) increased as the bamboo fiber content increased. As the bamboo fiber content in the BaSiCs increased, the impact energy and the deflection at peak load values decreased and increased, respectively. The results from this study showed that the addition of bamboo fiber into silicone rubber composites can substantially affect its compressive strength, moisture absorption, and impact strength. This study provided essential knowledge to the development of BaSiCs for cushioning applications, such as shoe insoles.

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“…Higher temperatures tend to accelerate the water diffusion behaviour. It is believed that the phenomenon is due to quicker movement of water molecules at higher temperature [21,22]. At high temperature, there is also a chance of breakage of the addition H-bonds created in the cellulosic network [23].…”

Section: Water Sorption Behaviourmentioning

confidence: 99%

A Study on Water Absorption and Mechanical Properties in Epoxy-Bamboo Laminate Composite with Varying Immersion Temperatures

Widiastuti¹,

Pratiwi²,

Cahyo³

2020

Open Engineering

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Bamboo laminate composites could be the alternative materials in outdoor application. However, the life time prediction of this composite in humid environment became a concern considering hydrophilic property of the bamboo fibre. This research aimed to assess the changes of mechanical properties in the composite with the sorption of water. It employed hand lay-up method in developing the laminate composites with epoxy as the matrix and woven bamboo as the reinforced material. Water sorption characteristic was evaluated through a gravimetric analysis for different water immersion temperatures. The sorption on water was studied by four weeks immersion in room temperature as well as in elevated temperatures of 50∘ and 80∘C. Tensile test was performed to evaluate the mechanical properties of the composite. This research clearly showed the significant effect of bamboo fibre on the strength and water sorption behaviour of the composites. It was observed that the rate of water absorption depends on temperature of immersion. Larger debonding between the bamboo fibre and the epoxy matrix was found in higher water immersion temperature. The results of this study emphasized the importance of considering the deterioration of mechanical properties in outdoor applications of bamboo composite highly exposed to high temperature and humidity

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Evaluation of Water Absorption and its Influence on the Physical-Mechanical Properties of Bamboo-Bundle Laminated Veneer Lumber

Cited by 6 publications

References 17 publications

Wood-Poly(furfuryl Alcohol) Prepreg: A Novel, Ecofriendly Laminate Composite

Wood-Poly(furfuryl Alcohol) Prepreg: A Novel, Ecofriendly Laminate Composite

Physical and mechanical properties of bamboo-silicone biocomposites (BaSiCs)

A Study on Water Absorption and Mechanical Properties in Epoxy-Bamboo Laminate Composite with Varying Immersion Temperatures

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