Mechanical and thermal properties of sisal fiber-reinforced rubber seed oil-based polyurethane composites

Bakare, I. O.; Okieimen, F. E.; Pavithran, C.; Khalil, H. P. S. Abdul; Brahmakumar, M.

doi:10.1016/j.matdes.2010.04.013

Cited by 172 publications

(81 citation statements)

References 27 publications

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“…Polyester bamboo [132] ,banana [133,134] , coconut [69,135] , curaua [111,136] , flax [137,138] ,hemp [139][140] , jute [141][142] , pineapple [143,144] , sisal [145,146] , sugarcane bagasse [74,147] Polyurethane (PU) banana [148] , coconut [149] , curaua [108] , sisal [150,151] Epoxy banana [114,152] , coconut [153,154] , cotton [155] , flax [156][157] , hemp [158] , juta [159][160][161][162] , pineapple [163] , sisal [164][165] Phenolic banana [166,167] , flax [168,169] , jute [170] , sisal [171][172][173][174]…”

Section: Vegetal Fibersmentioning

confidence: 99%

Vegetal fibers in polymeric composites: a review

et al. 2015

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RbstractThe need to develop and commercialize materials containing vegetal fibers has grown in order to reduce environmental impact and reach sustainability. Large amounts of lignocellulosic materials are generated around the world from several human activities. The lignocellulosic materials are composed of cellulose, hemicellulose, lignin, extractives and ashes. Recently these constituents have been used in different applications; in particular, cellulose has been the subject of numerous works on the development of composite materials reinforced with natural fibers. Many studies have led to composite materials reinforced with fibers to improve the mechanical, physical, and thermal properties. Furthermore, lignocellulosic materials have been treated to apply in innovative solutions for efficient and sustainable systems. This paper aims to review the lignocellulosic fibers characteristics, as well as to present their applications as reinforcement in composites of different polymeric matrices.

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Section: Vegetal Fibersmentioning

confidence: 99%

Vegetal fibers in polymeric composites: a review

et al. 2015

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“…While the surface morphology of the AC does show rough surface, the micrograph of Rhusorbent also indicates rough surface and caves-like and more uneven surface. The presence of rough and irregular surfaces of -cyclodextrin-treated Rhusorbent in this case may be associated with the breaking of the covalent bond and the hydroxyl group present in the cellulose or lignin of fibers [4]. The rough surface may also be formed due to the removal of hemicelluloses, lignin and cellulosic constituents after treatment [5,6].…”

Section: Morphological Characterization Of Adsorbentmentioning

confidence: 94%

A Comparative Study on Equilibrium Adsorption of Dyes on Adsorbents Prepared from Coastal Plant,C. equisetifoliaSeeds via Green Modification and Activated Carbon

Jaafar

Awang

Zuki

et al. 2016

MATEC Web of Conferences

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Abstract. Eco-friendly adsorbents were prepared from coastal plant, C. equisetifolia seeds treated with β-cyclodextrin (Rhusorbent) for the removal of dyes. The study was carried out to determine the effectiveness of Rhusorbent to remove common dyes such as malachite green (MG) and neutral red (NR) dyes from aqueous solutions in batch experiments. The commercial activated carbon (AC) was also used in this equilibrium absorption study which includes the effect of adsorbent dosage, initial dye concentration and contact time. The percentage of MG dye removal of about 92.4% and 88.4% was achieved for both Rhusorbent and AC respectively at concentration of 60mg/L and 0.4g absorbent. The equilibrium adsorption of about 91.1% and 79.1% was achieved for both Rhusorbent and AC respectively involving NR dye. The scanning electron micrographs of Rhusorbent show uneven and rough surface prompting evidence for the effective adsorption of MG and NR dyes on the surface of adsorbents. For both adsorption studies, Langmuir and Freundlich isotherm models fitted well the adsorption data involving both Rhusorbent and AC. C. equisetifolia seeds are a potential source for bio-inspired adsorbents for the removal of MG and NR dyes.

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“…Several studies have shown that the mechanical properties of natural fibres composites are strongly affected by moisture absorption [3,4,[11][12][13][14][15][16][17][18][19][20][21][22][23][24], but for now there is no clear understanding of the exact combination of water absorption mechanisms. Strong bonds between the fibres and the matrix will maximize the mechanical performance of the composite as well as preventing the infiltration of water at the interface [20,25].…”

Section: List Of Tablesmentioning

confidence: 99%

Environmental resistance of flax/bio-based epoxy and flax/polyurethane composites manufactured by resin transfer moulding

Nils

Dumont

Hubert

2016

Composites Part A: Applied Science and Manufacturing

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In recent years, many car manufacturers such as Audi, BMW and Ford have developed natural fibre composite components. The driver behind developing interior parts with natural fibres as reinforcement is to save weight without compromising mechanical properties, with the additional benefit of moving towards a more sustainable part production. Current biocomposites are based on the application of short, non-woven natural fibres. However, bonding hydrophilic natural fibres to a hydrophobic polymeric matrix can sometimes lead to a relatively poor interface, mostly because of the different polarities of the two components. In addition, natural fibre composites are highly sensitive to water absorption. The aim of this study was to compare the physical properties two biocomposites: (1) a flax/bio-based epoxy and (2) a flax/polyurethane. In fact, polyurethane is synthesized by polyaddition of an poly-isocyanate and a polyol, an alcohol containing several hydroxyl groups. Flax fibres are mainly composed of cellulose, a natural polymer that presents multiple hydroxyl groups. A crosslinking reaction between the polyurethane matrix and the cellulose in the fibres could increase the interface strength. Both materials were manufactured using a resin transfer moulding (RTM) process in order to maximize the fibre volume fraction and were reinforced with the same flax woven fabric.Composite samples were then aged at 90% RH and 30°C. The results showed that both composites followed a Fickian diffusion behaviour and that flax/polyurethane composites were less sensitive to moisture ageing than flax/bio-epoxy composites. The chemical bonds between the hydroxyl groups of the fibres and the isocyanate lead to a stronger interface which improved the mechanical properties as compared to the flax/bio-epoxy composites. When exposed to moisture, the flax/polyurethane composites show more stable mechanical performances, especially the short beam strength, the compressive strength and the compressive modulus.Scanning electron micrographs were taken to look at the interface between the flax elementary fibres and the polymer matrix and clearly showed a better fibre/matrix adhesion in the case of the flax/polyurethane composites. Finally, dynamic mechanical analysis (DMA) was performed to study the evolution of the glass transition temperature ( ) in function of the water uptake for composite samples immersed in distilled water at 30°C. III ABREGEDepuis plusieurs années, de nombreux constructeurs automobiles dont Audi, BMW et Ford ont développé des pièces en composite renforcés par des fibres naturelles. Le développement de composants pour les intérieurs de voiture renforcé par des fibres naturelles permet d'économiser du poids sans pour autant compromettre les propriétés mécaniques, avec l'avantage supplémentaire de produire des pièces dans un matériau plus durable. Les biocomposites actuels contiennent surtout des fibres naturelles courtes, non-tissés. Toutefois, l'adhésion de fibres naturelles hydrophiles à une matrice polymère hydrop...

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Mechanical and thermal properties of sisal fiber-reinforced rubber seed oil-based polyurethane composites

Cited by 172 publications

References 27 publications

Vegetal fibers in polymeric composites: a review

Vegetal fibers in polymeric composites: a review

A Comparative Study on Equilibrium Adsorption of Dyes on Adsorbents Prepared from Coastal Plant,C. equisetifoliaSeeds via Green Modification and Activated Carbon

Environmental resistance of flax/bio-based epoxy and flax/polyurethane composites manufactured by resin transfer moulding

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