Novel extraction techniques, chemical and mechanical characterisation of Agave americana L. natural fibres

Bezazi, Abderrezak; Belaadi, Ahmed; Bourchak, Mostefa; Scarpa, Fabrizio; Boba, Katarzyna

doi:10.1016/j.compositesb.2014.05.014

Cited by 174 publications

(68 citation statements)

References 58 publications

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“…Hydroxyl based materials are usually detected in the region of 3400 cm -1 to 3300 cm -1 . The peak at 2901 and 1598 could be attributed to C-H stretching bend of cellulose and C=C stretching of the aromatic ring of lignin, respectively [22,[41][42][43][44]. The peak observed at 1421 cm -1 can be ascribed to CH stretching while the 1368 cm -1 can be associated with C-H bending stretch of cellulose.…”

Section: Chemical Functional Groups (Ft-ir)mentioning

confidence: 99%

Characterization of hibiscus sabdariffa fiber as potential reinforcement for denture acrylic resins

et al. 2018

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This study aimed to determine the characteristics of Hibiscus sabdariffa as a fiber-reinforcement material for denture acrylic resins. The Hibiscus sabdariffa fiber was extracted by hot water retting. The fiber was treated at room temperature in aqueous solution of NaOH for 8 hours at 8% concentration. Micrometre gauge and Field emission scanning electron microscope (FE-SEM), Archimedes principle, Fourier transform infrared (FTIR) spectroscopy, and Thermogravimetric analyser were used to characterize the diameter, morphology, density, water content and absorption, functional chemical component and thermal behaviour of Hibiscus sabdariffa fiber. In addition, the reinforcing characteristics of Hibiscus sabdariffa fiber was evaluated using denture acrylic resin. The flexural strength was measured in line with ASTM D 790 using Lloyd TM three point bending machine. In line with ASTM D 256, the impact strength was measured using Hounsfield TM charpy tester. The Micrometre gauge and FE-SEM analysis confirmed that diameter of Hibiscus sabdariffa fiber is within the range of other established reinforcing lignocellulosic fibers so also are the density, moisture content and absorption. The FTIR spectroscopy and TGA analysis confirmed the presence of cellulose, hemicellulose and other components in the fiber which were modified by treatment resulting in decreased hydrophilicity of the fibers thereby improving the thermal stability of the fiber. Furthermore, the bond fiber/matrix adhesion was improved which resulted in improve mechanical properties of the composite. The salient features of this study indicated that based on the suitable properties, Hibiscus sabdariffa fiber can be applied to reinforcing denture acrylics. In addition, and potentially, the use of Hibiscus sabdariffa fiber in reinforcement of denture acrylic resins can trigger further economic benefit while ensuring sustainable, green and safer environment.

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Section: Chemical Functional Groups (Ft-ir)mentioning

confidence: 99%

Characterization of hibiscus sabdariffa fiber as potential reinforcement for denture acrylic resins

et al. 2018

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“…Also some references have been found about the extraction of fibres from Agave Americana L. leaves for their use in composites production [12][13][14]. It has been demonstrated that the fibres extraction process greatly influences the properties of the obtained fibres; Bezazi et al have shown that fibres obtained without water use (by burying the leaves in the ground for 3 months) had better mechanical properties than fibres from water retting [15]. Other authors have used a pectinase solution for fibres obtaining [16,17] or a hydrolysis process followed by leaf calendaring [18].…”

Section: Introductionmentioning

confidence: 99%

Characterization of Agave americana L. plant as potential source of fibres for composites obtaining

et al. 2019

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This paper summarises the results obtained from the characterization assays from century plant (Agave americana L.), determining the chemical composition of different parts of the plant. Fibres were obtained by means of a mechanical device, specifically designed and built for Agave americana leaves processing. Obtained fibres were subjected to thermogravimetric analysis and infrared spectra, and their chemical composition was also determined by quantitative acid hydrolysis. Once obtained, fibres were blended up to 40% (in weight) to obtain composites by compression moulding, using polyethylene as matrix; mechanical testing show improvements in elastic modulus for both tensile and flexural tests; increase in flexural maximum strength were also found for the composites, while tensile strength is slightly reduced with the introduction of agave fibres. The research is part of a project developed in the Macaronesian region, which aim is to demonstrate the feasibility of using biomass from invasive plant species in the composites sector as a way of financing control campaigns and habitats conservation labours, which is the main novelty of this research.

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“…In addition, as shown in SEM micrographs (Fig. ), these fibers exhibited relatively large diameters (279.28 ± 108.80 μm), and it is well known that the fiber strength decreases with increasing diameter, due to the probability of defect occurrence . In addition, extracted Diss fibers were not perfectly separated and appeared to be still organized in bundles of fibers (technical fibers).…”

Section: Resultsmentioning

confidence: 95%

Thermal and mechanical behavior of thermoplastic composites reinforced with fibers enzymatically extracted from Ampelodesmos mauritanicus

Sarasini

Tirillò

Maffei

et al. 2019

Polymer Engineering & Sci

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This work investigates the morphology, the thermal, and mechanical properties of technical fibers extracted from the Ampelodesmos mauritanicus (Diss) grass using a process that combines mechanical, mild chemical, and enzymatic steps. The structure and the thermal stability of Diss fibers make them suitable as a reinforcing filler in polymer composites, which was assessed by manufacturing biocomposites with improved stiffness and a tensile strength not degraded by Diss fibers when compared to those of a commodity polymer and a biodegradable one, namely polypropylene and poly(lactic acid). This work confirms that enzyme mixtures obtained from commercially available products of relatively low cost can represent a simple and environmentally friendly means to extract less common natural fibers. POLYM. ENG. SCI., 59:2418–2428, 2019. © 2019 Society of Plastics Engineers

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Novel extraction techniques, chemical and mechanical characterisation of Agave americana L. natural fibres

Cited by 174 publications

References 58 publications

Characterization of hibiscus sabdariffa fiber as potential reinforcement for denture acrylic resins

Characterization of hibiscus sabdariffa fiber as potential reinforcement for denture acrylic resins

Characterization of Agave americana L. plant as potential source of fibres for composites obtaining

Thermal and mechanical behavior of thermoplastic composites reinforced with fibers enzymatically extracted from Ampelodesmos mauritanicus

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