Performance studies of polyester-based hybrid composites reinforced with palmyra-palm leaf stalk and glass fibers

Tripathy, Chetana; Deo, Chitta Ranjan; Das, Sunil K.

doi:10.1016/j.matpr.2020.08.333

Cited by 4 publications

(7 citation statements)

References 10 publications

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“…Surface-modified fibers are known to enhance the interlocking of the fiber matrix, leading to enhanced stress transfer from the matrix to the reinforcement due to the enhanced crystallinity according to the XRD analysis. 24 The plots also demonstrate an increase in the tensile strength of the composite materials when the filler is added, up to a concentration of 10 vol.%. The increase in tensile strength can be attributed to the uniform distribution of filler within the prepared composites.…”

Section: Tensile Strengthmentioning

confidence: 84%

“…It was stated that the hybridization rendered 21% more mechanical properties than the single fiber-reinforced composites owing to the better compatibility between the treated natural fiber and the polyester matrix. 23,24 In another investigation, the hybridization of banana and sisal fibers resulted in a 16%, 35%, and 4% increase in tensile, impact, and flexural strength respectively along with reduced hygrothermal resistance. 25,26 These improvements were possible due to the chemical treatment of both the natural fibers and better chemical adhesion between the fibers and the matrix.…”

Section: Introductionmentioning

confidence: 98%

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Effect of alumina fillers on physical and mechanical properties of luffa/groundnut shell natural fiber reinforced polymer composites

Senthil Kumar,

Sivakumar,

Senthil

et al. 2024

Polymer Composites

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This study aims to investigate the physical and mechanical properties of epoxy composites reinforced with hybrid luffa waste and groundnut shell waste natural fibers and to evaluate the effect of different filler loadings of alumina on the mechanical behavior of the hybrid composites. The luffa fibers were made to undergo mercerization in 10% NaOH solution. All the treated fibers and the alumina fillers were characterized using X‐ray diffraction analysis (XRD). The study used three different filler loadings of alumina (Al2O3) (5%, 10%, and 15% by volume) and three different fractions of treated luffa‐waste groundnut shell hybrid fibers (10%, 30%, and 50% by volume). The composites were fabricated using the hand layup technique, and the prepared test specimens were subjected to mechanical and physical properties testing as per ASTM standards. The experimental findings indicated that the inclusion of Al2O3 filler improved the physical and mechanical characteristics of the natural fiber‐reinforced hybrid composites. The results showed that the composites with 30 vol. % fibers (1:1 luffa fiber: groundnut shell fiber) and 10 vol. % Al2O3 content showed enhanced tensile, flexural, shear, and impact strength and hardness. Besides, a good synergy between the alumina fillers, natural fibers, and the polymer matrix was observed in the surface morphology of the composite specimen. The developed composites can be used in low and medium‐load‐bearing structural and non‐structural applications.Highlights Development of hybrid polymer composites with luffa and novel groundnut shell fibers Hybridization of alumina ceramic particles with natural fiber hybrid composites Assessment of physical and mechanical properties of the polymer composites

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Section: Tensile Strengthmentioning

confidence: 84%

Section: Introductionmentioning

confidence: 98%

Effect of alumina fillers on physical and mechanical properties of luffa/groundnut shell natural fiber reinforced polymer composites

Senthil Kumar,

Sivakumar,

Senthil

et al. 2024

Polymer Composites

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“…Effects such as matrix cracks, delamination, fractures along the interface, resin particle loss, and fiber misalignment were observed due to the impact of moisture diffusion in hybrid composites [22]. When the glass fiber is used in the outer layer, lower water absorption is observed in comparison to other hybrid laminates with plant fabric on the outer layer [57].…”

Section: Introductionmentioning

confidence: 99%

“…The effect of water moisture on the mechanical performance of fiber-reinforced polymer matrix composites has been extensively studied in the literature [10,12,22,51,[57][58][59][60]. However, there is still a need for further investigation regarding the sorption effect on the mechanical behavior of hybrid polyester/glass/jute composites, especially with different fiber stacking configurations, to fully understand its influence on material properties.…”

Section: Introductionmentioning

confidence: 99%

Effect of Water Absorption and Stacking Sequences on the Tensile Properties and Damage Mechanisms of Hybrid Polyester/Glass/Jute Composites

Aranha,

Filho,

Santos

et al. 2024

Polymers

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The aim of this work is to analyze the effect of water absorption on the mechanical properties and damage mechanisms of polyester/glass fiber/jute fiber hybrid composites obtained using the compression molding and vacuum-assisted resin transfer molding (VARTM) techniques with different stacking sequences. For this purpose, the mechanical behavior under tensile stress of the samples was evaluated before and after hygrothermal aging at different temperatures: TA, 50 °C, and 70 °C for a period of 696 h. The damage mechanism after the mechanical tests was evaluated using SEM analysis. The results showed a tendency for the mechanical properties of the composites to decrease with exposure to an aqueous ambient, regardless of the molding technique used to conform the composites. It was also observed that the stacking sequence had no significant influence on the dry composites. However, exposure to the aqueous ambient led to a reduction in mechanical properties, both for the molding technique and the stacking sequence. Damage such as delamination, fiber pull-out, fiber/matrix detachment, voids, and matrix removal were observed in the composites in the SEM analyses.

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“…With a better adhesion between the reinforcement and the matrix, there was a reduction in water absorption, the diffusion coefficient, and swelling of the samples [29]. The fiber stacking sequence in hybrid composites should also be observed since it influences the water absorption of the composites [14,41,42].…”

Section: Introductionmentioning

confidence: 99%

Water Sorption in Hybrid Polyester/Glass/Jute Composites Processed via Compression Molding and Vacuum-Assisted Resin Transfer Molding

Aranha,

Filho,

de Lima Santos

et al. 2023

Polymers

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The aim of this work is to analyze water sorption in hybrid polyester/glass fabric/jute fabric composites molded via compression and VARTM (Vacuum-Assisted Resin Transfer Molding). The laminates were produced with five different stacking sequences and subjected to water sorption testing at room temperature, 50 °C and 70 °C. This study consisted of two stages: experimental and theoretical stages. The composites had a fiber volume content ranging from 30% to 40%. Water absorption and diffusion coefficient in the hybrid composites were intermediate to those reinforced with a single type of fiber. There were no significant differences in these properties based on fiber arrangement once the composites reached saturation. Diffusion coefficient values were higher for specimens with jute fiber on at least one of the outer surfaces. Water sorption rates increased with higher immersion temperatures. The water sorption at saturation point was not affected by the manufacturing process. Among the hybrid composites, those with jute on the surfaces showed the highest diffusion coefficient, while those with glass on the surface had the lowest values. Higher diffusion coefficient values were observed at temperatures of 50 °C and 70 °C. The main influencing factors on the absorbed moisture content for composites are the presence and content of jute fibers in the system and the immersion temperature. The manufacturing process does not affect the water sorption at saturation point.

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Performance studies of polyester-based hybrid composites reinforced with palmyra-palm leaf stalk and glass fibers

Cited by 4 publications

References 10 publications

Effect of alumina fillers on physical and mechanical properties of luffa/groundnut shell natural fiber reinforced polymer composites

Effect of alumina fillers on physical and mechanical properties of luffa/groundnut shell natural fiber reinforced polymer composites

Effect of Water Absorption and Stacking Sequences on the Tensile Properties and Damage Mechanisms of Hybrid Polyester/Glass/Jute Composites

Water Sorption in Hybrid Polyester/Glass/Jute Composites Processed via Compression Molding and Vacuum-Assisted Resin Transfer Molding

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