Development of bamboo scrimber: a literature review

Huang, Yuxiang; Ji, Yaohui; Yu, Wenji

doi:10.1186/s10086-019-1806-4

Cited by 187 publications

(71 citation statements)

References 35 publications

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“…Bamboo scrimber is a new type of bamboo-based composite that is manufactured by hot or cold pressure on the bamboo bundle. The development of bamboo scrimber not only improves the utilization of bamboo, but also provides a good option for structural engineering due to its excellent performance [ 5 , 6 ]. Indeed, numerous studies have shown that bamboo scrimber has good application prospects in structural buildings.…”

Section: Introductionmentioning

confidence: 99%

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Effects of One-Step Hot Oil Treatment on the Physical, Mechanical, and Surface Properties of Bamboo Scrimber

Yuan

Wang

et al. 2020

Molecules

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Bamboo scrimber is a new type of bamboo-based panel that is prone to be affected by biological and service environments under outdoor conditions. In this paper, the physical and mechanical performance and the microchemical and surface properties of untreated and hot-oil-treated bamboo scrimber were analyzed to illustrate the processing mechanism of scrimber. Methyl silicone oil treatment was carried out at 120, 140, and 160 °C for 2, 4, and 6 h. The density, mechanical properties, air-dried moisture content, surface morphology, chemical structure, swelling properties, color, and contact angle of the bamboo scrimber were analyzed to evaluate the treatment effectiveness. Observation of the environmental-scanning electron microscope indicated that the glue layer of the bamboo scrimber was not significantly damaged after hot oil treatment. At low temperatures, the mechanical properties did not change significantly. Infrared-spectrum analysis showed a significant decrease in mechanical properties at higher temperatures and longer treatment time for the degradation of hemicellulose. The contact angle test and swelling properties test showed that the hot oil treatment improved the dimensional stability and reduced the wettability on the surface of the bamboo scrimber. The above analysis results show that the treatment at 140 °C for 2 h is most effective.

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Section: Introductionmentioning

confidence: 99%

“…However, bamboo is rich in sugar and has abundant starch, which leads to its high moisture absorption and poor biological durability. Therefore, bamboo scrimber absorbs water easily and can form cracking defects under outdoor conditions, which greatly reduces the safety coefficient of the bamboo scrimber in engineering utilization [ 5 ].…”

Section: Introductionmentioning

confidence: 99%

Effects of One-Step Hot Oil Treatment on the Physical, Mechanical, and Surface Properties of Bamboo Scrimber

Yuan

Wang

et al. 2020

Molecules

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“…This process causes the formation of new composite material with different physical, chemical, and mechanical properties. In some cases, both mechanisms may occur at the same time in some processes, like in the production of compressed wood-polymer composites [ 22 ] and bamboo scrimber [ 23 , 24 , 25 ]. The final density is controlled by the densification method.…”

Section: Densification Conceptmentioning

confidence: 99%

“…The increase of density may be related to the closure of bamboo voids such as vessels, parenchymas, and fiber lumens caused by high-pressure and hot-pressing processes [ 25 , 75 ], or the presence of solid resin particles in the cavities. The microstructural analysis of engineered bamboo scrimber at different densities conducted by Yu (2017) [ 75 ], shows that when the scrimber density is low, for example at 850 kg/m 3 , the structure is irregular, which led to deficient fiber bonding.…”

Section: Densification In Bamboo-based Panelsmentioning

confidence: 99%

Densification of Bamboo: State of the Art

et al. 2020

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Densification processes are used to improve the mechanical and physical properties of lignocellulose materials by either collapsing the cell cavities or by filling up the pores, consequently reducing the void volume fraction. This paper focuses on an extensive review of bamboo densification process, which is achieved by compressing the material in the direction perpendicular to the fibers using mainly two different techniques: an open system, thermo-mechanical (TM), or a closed system, viscoelastic-thermal-compression (VTC). The main aim of bamboo densification is to decrease its heterogeneity, as well as to improve its mechanical and physical performance. In addition, densification may occur during the manufacturing of bamboo products in which hot-pressing processes are used to mold bamboo panels. There are over 1600 publications about bamboo, concentrated in the recent decade, mainly about engineered materials. Although several papers regarding bamboo and wood densification are available, very few studies have comprehensively investigated the densification process solely through compression of natural bamboo culms. According to the literature, applying a combination of compression of 6–12 MPa at temperatures between 120–170 °C for 8–20 min can produce materials with higher strength in comparison to the mechanical properties of natural bamboo. The majority of research on bamboo densification indicates that the modified material results in improved properties in terms of density, hardness, bending strength, stiffness, and durability. This paper provides a review that consolidates knowledge on the concept of bamboo culm densification, discusses the roles of parameters that control the process, ascertains the best practice, and finally determines gaps in this field of knowledge.

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“…The current methods for preparing porous bamboo are rarely reported. The content of lignin is about 30% of the total content of bamboo, and it is cross‐linked with various polysaccharides in bamboo to give structural support, which cannot be ignored . The separation of lignin destroys and weakens the native structure of bamboo, posing challenges and impractical for the handling and manufacture of large substrates .…”

Section: Introductionmentioning

confidence: 99%

Lignin‐retaining porous bamboo‐based reversible thermochromic phase change energy storage composite material

2020

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Shaped-stabilized reversible thermochromic phase change materials of (TBC-LB, TBB-LB) were assembled by impregnation the TBC (crystal violet lactone/ bisphenol A/tetradecanol) or TBB (3,3 0 -Bis (1-n-octyl-2-methylindol-3-yl) phthalide/bisphenol A/tetradecanol) into lignin-retained bamboo (LB) for energy storage. Analysis of the chemical structure of lignin-retained wood showed that the removal of part of lignin from the bamboo contributes to the penetration of the compound, and the partial retention of lignin is advantageous for maintaining high mechanical properties. The SEM micrographs of TBC-LB and TBB-LB indicate that TBC and TBB are well immersed into the porous LB. The TBC-LB showed an endothermic peak at 40.8 C with ΔH m of 113.3 J g −1 and two exothermic peaks at 28.8 C and 21.9 C with ΔH L+S of 110.2 J g −1 , and the value is basically equal to the pure TBC compound, indicating that TBC has been fully immersed in LB to form a composite phase change material. For phase change latent heat and melting-cooling temperature, TBB-LB and TBC-LB showed the same trend. About 100 heating-cooling cycles were performed to evaluate the reliability of TBC-LB and TBB-LB, showing excellent cycle stability. It is foreseen that the prepared shape-stable TBC-LB and TBB-LB have great potential for applying insulation systems in reversible thermochromic phase change energy storage. K E Y W O R D S composite, lignin-retained bamboo, phase change, properties, reversible thermochromic compound

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Development of bamboo scrimber: a literature review

Cited by 187 publications

References 35 publications

Effects of One-Step Hot Oil Treatment on the Physical, Mechanical, and Surface Properties of Bamboo Scrimber

Effects of One-Step Hot Oil Treatment on the Physical, Mechanical, and Surface Properties of Bamboo Scrimber

Densification of Bamboo: State of the Art

Lignin‐retaining porous bamboo‐based reversible thermochromic phase change energy storage composite material

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