Morphological, Structural, Thermal and Mechanical Characterization of Piassava Fibers

Elzubair, Amal; Bonelli, Claudia Maria Chagas; Suarez, João Carlos Miguez; Mano, Eloisa B.

doi:10.1300/j395v04n02_02

Cited by 23 publications

(16 citation statements)

References 18 publications

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“…In addition to the elements reported here, silica is also found in both AP and BP and was found to be 52% in A. funifera in the form of SiO 2 [ 23 ] and occurred as bodies with protrusions of about 20 µm in diameter taking up most of the space in a single cell [ 24 , 25 ]. Energy dispersive X-ray analysis showed that the bodies were mostly of silica [ 26 ].…”

Section: Resultsmentioning

confidence: 99%

Pretreatment Affects Activated Carbon from Piassava

Castro

Nobre

Napoli³

et al. 2020

Polymers

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The specificity of activated carbon (AC) can be targeted by pretreatment of the precursors and/or activation conditions. Piassava (Leopoldinia piassaba and Attalea funifera Martius) are fibrous palms used to make brushes, and other products. Consolidated harvest and production residues provide economic feasibility for producing AC, a value-added product from forest and industrial residues. Corona electrical discharge and extraction pretreatments prior to AC activation were investigated to determine benefits from residue pretreatment. The resulting AC samples were characterized using elemental analyses and FTIR and tested for efficacy using methylene blue and phenol. All resulting AC had good adsorbent properties. Extraction as a pretreatment improved functionality in AC properties over Corona electrical discharge pretreatment. Due to higher lignin content, AC from L. piassaba had better properties than that from A. funifera.

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Section: Resultsmentioning

confidence: 99%

Pretreatment Affects Activated Carbon from Piassava

Castro

Nobre

Napoli³

et al. 2020

Polymers

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“…Piassava fibre has been used as a reinforcing phase in a variety of polymer composites [9,11,24]. Elzubair et al [25] (Figure 3a). the ASTM C393 standard [27].…”

Section: Effects Of Portland Cement Inclusions Into Hybrid Compositesmentioning

confidence: 99%

Investigations on sustainable honeycomb sandwich panels containing eucalyptus sawdust, Piassava and cement particles

Dutra¹,

Filho²,

Christofóro

et al. 2019

Thin-Walled Structures

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A full factorial design is performed to investigate a sandwich structure consisted of Piassava fibre laminates as face sheets and epoxy-based honeycomb cores containing eucalyptus sawdust and cement particles. A three-point bending test is used to evaluate the composite structure. The composite setup which achieves higher flexural modulus and strength is used as honeycomb core material. Finite element models are developed to predict the failure and the elastic flexural properties of the sandwich panels. The validated FE model is used to perform a parametric analysis identifying the effect of geometric variations on the flexural performance. The results reveal that the constructive parameters significantly affect the core shear stress, facing stress, flexural stiffness and strength in different ways and intensities.

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“…Among less used lignocellulosic fibers, the one extracted from the piassava palm tree (Attalea funifera) has been the subject of a considerable number of publications [6,[12][13][14][15][16][17][18][19][20], just to mention a few. Figure 1 illustrates the appearance of piassava trees, bundle of extracted fibers and SEM detail of the fibers surface.…”

Section: Introductionmentioning

confidence: 99%

Weibull analysis of tensile tested piassava fibers with different diameters

Ferreira

Monteiro

2018

Matéria (Rio J.)

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Environmental considerations in addition to technical, economical and societal benefits are increasingly promoting the substitution of natural fibers for glass fiber in polymer matrix composites. However, natural fibers are heterogeneous in their dimensions, specially the cross section, which plays an important role in their mechanical strength. It has been found that the equivalent diameter of fibers such as sisal, ramie, pineapple and curaua correlates to different levels of tensile resistance. Piassava is a promising stiff natural fiber for composite reinforcement. In this work, a statistical analysis of tensile strength of piassava fibers using the Weibull methodology was performed. An attempt to correlate the fiber strength, obtained in tensile tests, with the diameter, precisely measured by means of a profile projector, was carried out. The results revealed an inverse dependence between the piassava fiber diameter and corresponding tensile strength. Fracture tip observation by SEM suggested a possible mechanism that could justify this inverse correlation.

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Morphological, Structural, Thermal and Mechanical Characterization of Piassava Fibers

Cited by 23 publications

References 18 publications

Pretreatment Affects Activated Carbon from Piassava

Pretreatment Affects Activated Carbon from Piassava

Investigations on sustainable honeycomb sandwich panels containing eucalyptus sawdust, Piassava and cement particles

Weibull analysis of tensile tested piassava fibers with different diameters

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