Effect of Hot-Pressing Temperature on Characteristics of Straw-Based Binderless Fiberboards with Pulping Effluent

Wang, Jiajun; Wang, Bo; Liu, Junliang; Ni, Lin; Li, Jianzhang

doi:10.3390/ma12060922

Cited by 16 publications

(12 citation statements)

References 42 publications

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“…The material also emitted a distinctive odor. Similar results were also noticeable in the binderless boards made using the following raw materials: bagasse (Panyakaew and Fotios 2011), palm oil trunk (Boon et al 2013), unripe coconut husk (Araújo Junior et al 2018), wheat straw (Wang et al 2019), soybean straw (Song et al 2020), jute stick (Nitu et al 2020), and densified wood (Shi et al 2020); this could be the result of the modification of the chemical components that occurs during the heat treatment (Panyakaew and Fotios 2011;Wang et al 2019). The presence of hemicellulose degradation and extractive movement may be the cause of the darkening of the color (Shi et al 2020).…”

Section: Resultssupporting

confidence: 55%

Binderless bark particleboard made from gelam (Melaleuca viridiflora Sol. ex Gaertn.) bark waste: The effect of the pressing temperature on its mechanical and physical properties

Christy

Soemarno

Sumarlan

et al. 2021

BioRes

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This study investigated the effects of the pressing temperature on the mechanical and physical properties of binderless bark particleboard made from Gelam bark waste and the improvement of those properties. In addition, the thermal insulation properties of the particleboard were determined. Four different temperatures (140 °C, 160 °C, 180 °C, and 200 °C) were used to make single-layer binderless bark particleboard with a target density of less than or equal to 0.59 g/cm3. Results revealed that the pressing temperature affected the mechanical properties (modulus of rupture, modulus of elasticity, and tensile strength perpendicular to panel surface), which increased as the temperature increased, and the physical properties (thickness swelling and water absorption), which decreased as the temperature increased. Based on the Tukey test, increasing the temperature from 180 to 200 °C did not significantly affect the mechanical or physical properties, except for the tensile strength perpendicular to panel surface. None of the mechanical properties met SNI standard 03-2105-2006 (2006); however, the 12% maximum thickness swelling requirement was met for binderless bark particleboard hot-pressed at 200 °C. Binderless bark particleboard hot-pressed at 200 °C had high water resistance, regardless of its low strength, and a thermal conductivity value of 0.14 W/m∙K.

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Section: Resultssupporting

confidence: 55%

Binderless bark particleboard made from gelam (Melaleuca viridiflora Sol. ex Gaertn.) bark waste: The effect of the pressing temperature on its mechanical and physical properties

Christy

Soemarno

Sumarlan

et al. 2021

BioRes

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“…At this T IN , the SMS and EFFB fiber samples lost 56.24% and the EFB fiber sample lost 72.70% of their original weights. The drastically decreased weight loss curve for all samples occurred due to the decomposition of hemicellulose content in the fiber [47]. In addition, at this stage, previous studies reported that the decrease in weight loss for the samples also corresponded to the degradation of cellulose in the fiber [48].…”

Section: Thermogravimetric Analysismentioning

confidence: 63%

Sandwich Composite Panel from Spent Mushroom Substrate Fiber and Empty Fruit Bunch Fiber for Potential Green Thermal Insulation

et al. 2023

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Massive generation of natural waste fiber from agricultural industries followed by improper disposal management might result in a detrimental effect on our ecosystem contributing to various types of environmental pollution. With the growing significance of climate change, an effort is being undertaken by utilizing natural waste fiber into eco-friendly insulation panels to reduce the environmental impact of buildings. In this research, a composite panel was developed from spent mushroom substrate (SMS) and empty fruit bunch (EFB) fibers via a sandwich technique. Five samples were made, each with a different fiber ratio (100 SMS: 0 EFB, 80 SMS: 20 EFB, 60 SMS: 40 EFB, 40 SMS: 60 EFB, and 0 SMS: 100 EFB) at density 0.8 g/cm3. Fourier transformation infrared (FTIR) Soxhlet extraction followed by thermogravimetric analysis (TGA) indicated that the SMS and EFB fibers were relevant for fabrication into a composite panel for thermal insulation. Thermal conductivity, thermal resistance, and thermal diffusivity values for these five composite samples were 0.231 to 0.31 W/(mK), 0.0194 to 0.0260 m2K/W, and 0.2665 to 0.3855 mm2/s, respectively. The flexural strength of the composite was at the range 15.61 to 23.62 MPa. These research findings suggest that the fabrication of a sandwich composite panel from SMS and EFB fiber is a promising alternative way to utilize natural waste fiber.

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“…However, at a pressing temperature of more than 190 • C, the colour of the boards darkened, and energy consumption was excessive. No significant changes occurred up to 190 • C [4].…”

Section: Introductionmentioning

confidence: 86%

Influence of Lignocellulosic Waste Pre-Treatment on the Characteristics of Bond Rupture

2019

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Post-harvest crop residues are an interesting raw material for the production of composite materials. However, their surface often contains waxy and siliceous substances, which can cause adhesion problems. Therefore, various surface pre-treatment methods have been developed to increase the surface tension of these particles and hence to improve adhesive adhesion. The influence of hydrothermal, chemical, plasma and enzymatic treatment was investigated. The aim of the paper is to evaluate the effect of pre-treatments of post-harvest crop residues on the nature of joint failure and adhesive dispersion on the particles. The evaluation is based on microscopic analysis of particles obtained from the rupture area after internal bonding tests. The nature of bond failure and adhesive dispersion on the particle surface is evaluated. The results show a clear influence of material pre-treatment on the failure bond of the bond and, to a large extent, correlate with the mechanical properties of composites published in previous studies. The most suitable treatment appears to be a plasma treatment at a properly adjusted intensity. Conversely, the unsuitable treatment was alkaline, which, although it increased adhesion, deteriorated the overall mechanical properties. Hydrothermal treatment could be also considered as an industrially suitable method.

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Effect of Hot-Pressing Temperature on Characteristics of Straw-Based Binderless Fiberboards with Pulping Effluent

Cited by 16 publications

References 42 publications

Binderless bark particleboard made from gelam (Melaleuca viridiflora Sol. ex Gaertn.) bark waste: The effect of the pressing temperature on its mechanical and physical properties

Binderless bark particleboard made from gelam (Melaleuca viridiflora Sol. ex Gaertn.) bark waste: The effect of the pressing temperature on its mechanical and physical properties

Sandwich Composite Panel from Spent Mushroom Substrate Fiber and Empty Fruit Bunch Fiber for Potential Green Thermal Insulation

Influence of Lignocellulosic Waste Pre-Treatment on the Characteristics of Bond Rupture

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