Enhancement of flexural properties and dimensional stability of rice husk particleboard using wood strands in face layers

Kwon, Jin Kyung; Ayrılmış, Nadir; Han, Tae Hyung

doi:10.1016/j.compositesb.2012.01.045

Cited by 50 publications

(33 citation statements)

References 5 publications

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“…The magnitude of the values observed of WA% and TS% for the thermoset composites prepared with husk pine nuts were similar to the results found by other works on thermoset composites filled by biomasses . For example, Keskin, Kucuktuvek and Guru , using UF resin in composites of poppy husk and wood, found TS% of 17% at 2 h and 22% at 24 h. Also, de Barros Filho, Mendes, Novack, Aprelini and Botaro prepared chipboards using sugarcane bagasse, wood and UF resin at 9%, and found WA% of 16%–88% at 2h and 146%–201% at 24h, which vary according to the mixture of sugarcane and wood chips.…”

Section: Resultssupporting

confidence: 87%

Thermosetting composites prepared using husk of pine nuts from Araucaria angustifolia

et al. 2016

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The high consumption of pine nuts as food leads to high amounts of husk dispensed as waste. The incorporation of the husk from pine nut into composites appears as a strategic route to explore the commercialization of the Araucaria angustifolia. The present study aims to prepare and characterize thermosetting composites of urea and phenol formaldehyde and husk of pine nuts. For this, husk particles, paraffin emulsion, ammonium sulfate, and resins, were mixed with a high-shear mixer and then cured by flat-pressing at 4 MPa, 1208C, for 5 minutes. SEM and optical images revealed good homogenization between resin and husk. DTG and DSC results showed chemical affinity between filler and matrix -tracked by shifts in the DTG peaks of the husk. The UF composites showed higher wettability and water absorption; therefore higher thickness swelling. The UF and PF composites with 30% of resin provided the greatest repellency to water, and the highest mechanical properties. It was possible to prepare composites of UF and PF resins loaded with 70 and 80% of husk from pine nuts.

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Section: Resultssupporting

confidence: 87%

Thermosetting composites prepared using husk of pine nuts from Araucaria angustifolia

et al. 2016

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“…The raw RH consists of 25 to 35% cellulose, 18 to 21% hemicellulose, 26 to 31% lignin, 15 to 17% silica, 2 to 5% solubles, and 7.5% moisture content (Chen et al 2015b). RH has low density, high specific strength and modulus, and is biodegradable, tough, resistant to weathering, and makes final products cheaper if it is incorporated into composites compared to other fibers (Zhao et al 2009;Kwon et al 2013). The RH-filled composites are increasingly being used in the automotive industry such as door panels and trims, and in the building construction like decks, windows, slidings and green furniture.…”

Section: Introductionmentioning

confidence: 99%

Biocomposites Based on Rice Husk Flour and Recycled Polymer Blend: Effects of Interfacial Modification and High Fibre Loading

Chen¹,

Salleh²,

Ghani³

et al. 2015

BioResources

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Biocomposites were prepared with rice husk flour (RHF) (raw and alkalitreated) in a recycled polymer blend (RPB) using a co-rotating twin screw extruder. Modifications to the composite were carried out through fibre surface treatment with 4 wt.% sodium hydroxide (NaOH) and 3 wt.% maleic anhydride polyethylene (MAPE) coupling agent. Fourier transform infrared (FTIR) analyses of raw and NaOH-treated RHF were performed. The effects of the interfacial modification (MAPE or/and NaOH) and filler loading (50 to 80 wt.%) on the mechanical, physical, and morphological properties were investigated. Improvements in the tensile strength and Young's modulus as well as reduction in water absorption and water loss were observed for raw RHF composites incorporated with MAPE. Alkalisation of fibres resulted only in an enhancement in elongation and impact strength. The composite with 70 wt.% RHF modified with only MAPE exhibited the highest tensile strength and modulus, 22.2 and 711.6 MPa, respectively. The general trend of the composite results exhibited some decrease in water absorption and water loss from untreated RHF composites with only MAPE modification as compared to the NaOHtreated composite, although a rougher surface for the treated fibres was revealed in SEM images.

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“…The weak bond-line interaction is as a result of the high content of silica, wax and low aspect ratio of fibres, although, it possessed some benefits over BCB produced from other fibre straw. The boards from rice husk is very tough, biodegradable, high resistance to weathering, low weight and economically affordable [86,87]. In addition, when compared with BCB from wheat straw, it has higher termite resistance with better dimensional stability.…”

Section: Rice Fibre Bio-composite Boardsmentioning

confidence: 99%

Key advances in development of straw fibre bio-composite boards: An overview

Aladejana

Fan

2020

Mater. Res. Express

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In recent years, considerable attention have been given to the development and utilization of biodegradable fibres for bio-composite boards. This is due to the increase in the environmental consciousness and the need for sustainable development which enable establishment of new materials majorly for packaging, aircraft, furniture, and automobile. Straw fibres (wheat, rice, and corn fibre) are the most available natural agricultural wastes products, which has been utilized for the production of these new materials. This paper hence reviews the enhancement in production methodology and properties of the straw fibres bio-composite boards to add further scientific knowledge to the potentiality of using agricultural fibres as value added products. The future replacement of conventional wood fibres for the production of bio-composite panels, especially with agricultural wastes, could be centered on straw fibres. The introduction of straw fibres in polymer matrices were presented based on various research outcomes. Biodegradable fibres could be regarded as a good fibrous composite material. Although, more efforts are still needed in developing facile straw fibre composite production methods and materials with robust industrial and domestic applications.

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Enhancement of flexural properties and dimensional stability of rice husk particleboard using wood strands in face layers

Cited by 50 publications

References 5 publications

Thermosetting composites prepared using husk of pine nuts from Araucaria angustifolia

Thermosetting composites prepared using husk of pine nuts from Araucaria angustifolia

Biocomposites Based on Rice Husk Flour and Recycled Polymer Blend: Effects of Interfacial Modification and High Fibre Loading

Key advances in development of straw fibre bio-composite boards: An overview

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