Mechanical and free vibration properties of <i>Phoenix sp</i>. fiber reinforced epoxy composites: Influence of sodium bicarbonate treatment

Rajeshkumar, G.

doi:10.1002/pc.26303

Cited by 8 publications

(4 citation statements)

References 34 publications

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“…[8][9][10] These NFs can be used to substitute synthetic fiber in building materials and reduce environmental impact of traditional construction materials. [11][12][13] Many literatures highlighted the usage of various natural fibers (sisal and coconut, [14] jute, [1] oil palm, [15] cotton, [16] sweet sorghum, [17] hemp, [18] rice straw, [19] abaca, [20] etc.) as a reinforcement material for producing geopolymer based composites for civil engineering applications.…”

Section: Introductionmentioning

confidence: 99%

Characterization of sustainable natural fiber reinforced geopolymer composites

Ranjithkumar¹,

Chandrasekaran²,

Rajeshkumar

2022

Polymer Composites

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This article focuses on the investigation of properties of Phoenix sp. fiber based geopolymer composites. Control samples (0 wt.%) and fiber reinforced samples (1, 2, 3, and 4 wt.%) with different quantities were produced and determined their physical, mechanical, morphological, ultrasonic pulse velocity, water absorption, thermal conductivity and fracture toughness properties. The outcomes show that the incorporation of Phoenix sp. fibers to geopolymer improved the splitting tensile (1.28–2.35 MPa), compressive (27.85–32.18 MPa) and flexural strengths (3.34–6.53 MPa). By contrast, as the fiber loading increased to 4 wt.%, the workability and bulk density of geopolymer decreased to 86% and 13%, respectively. Furthermore, a linear relationship was evidenced between the bulk density and thermal conductivity, as well as ultrasonic pulse velocity and compressive strength. Due to the hydrophilic character of Phoenix sp. fibers, the water absorption increased as the fiber content increases. Due to the local mechanisms that control the bridging activity, the addition of Phoenix sp. fibers improved the fracture toughness of the composites.

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Section: Introductionmentioning

confidence: 99%

Characterization of sustainable natural fiber reinforced geopolymer composites

Ranjithkumar¹,

Chandrasekaran²,

Rajeshkumar

2022

Polymer Composites

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“…In the recent past, few literatures demonstrated the favorable effect of sodium bicarbonate (SB) treatment on composite properties in terms of improved interfacial bonding, mechanical properties, viscoelastic properties, stiffness, thermal stability, and vibration characteristics. [9][10][11][12] The SB solution is slightly alkaline because of the formation of carbonic acid (H 2 CO 3 ) and hydroxide ion (OH -); its interaction with natural fibers surface is comparable to that which ensues during a typical sodium hydroxide treatment. 13 In this context, the effect of concentration of SB treatment (0, 5, and 10%) on mechanical properties of flax/epoxy composites was estimated and conveyed that the 10% treatment offered higher mechanical properties.…”

Section: Introductionmentioning

confidence: 99%

Delamination and surface roughness analysis of jute/polyester composites using response surface methodology: Consequence of sodium bicarbonate treatment

Ravikumar¹,

Rajeshkumar

Manimegalai

et al. 2022

Journal of Industrial Textiles

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The present research work explores the consequence of eco-friendly sodium bicarbonate treatment on drilling behavior of jute fiber reinforced polyester composites. The fiber surface treatment was done by immersing the jute fibers in sodium bicarbonate solution (10 wt.%) for five days at room temperature. The raw and treated jute fiber composites were produced through compression molding process. The drilling behavior was expressed in terms of delamination factor (at entry and exit) and surface finish. The response surface methodology coupled with three factors—three levels Box–Behnken Design was used to study the interactive effects of process variables (drill diameter, feed, and cutting speed) on delamination factor and surface finish. Furthermore, the significance of the developed model was examined through analysis of variance. The chip morphology of the fabricated composites was examined to assess the quality of the drilled hole. The fractography analysis of the machined surface has also been carried using scanning electron microscopy. The outcomes revealed that the sodium bicarbonate treatment of jute fiber improved the machinability of the composites.

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“…Interface the fiber/matrix has been played a major role of composites to determine the mechanical performance and it enables better transfer of stresses from fiber to matrix. [1][2][3] Vibration control of composite structures was a more important subject in many engineering applications because little excitation may lead to large amplitude of vibration, specifically for the precise operation performances in satellites, aerospace systems, composite manipulators, and so forth. The damping performance of composite structure was a more important parameter when the composites were subjected to dynamic loading and vibration during their operations.…”

Section: Introductionmentioning

confidence: 99%

Redeemable environmental damage by recycling of industrial discarded and virgin glass fiber mats in hybrid composites—An exploratory investigation

Sathishkumar¹,

de‐Prado‐Gil

Martínez‐García

et al. 2022

Polymer Composites

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The fiber industry develops materials with good physical and mechanical characteristics, but it also generates a lot of waste that is difficult to degrade. Glass fibers can be extracted from waste glass fiber reinforced polymers because of advancements in grinding and sorting technologies. The objective of the current paper is to use waste glass fiber along with new woven glass fiber mat in structural application. Composites were manufactured using the hand layup method using virgin and discorded woven glass fibermats with different fiber weight fractions such as 10%, 20%, 30%, and 40%. Composites were then investigated for the influence of the recycled fiber on mechanical and vibration behavior using appropriate tests. Theoretical models were used to predict the mechanical behavior of the composites. Scanning electron microscopic technique was used to analyze the failure surface morphology of the composite specimen. Results portrayed that the composites with 40 wt% of new woven glass fiber mats exhibited better mechanical strength (tensile and flexural strengths and modules of 243 MPa, 1752 MPa, and 1244 MPa, 946 MPa, impact strength of 12.13 J). The combined effect of new and recycled glass fiber composites exhibited tensile and flexural strength of 211 MPa and 1734 MPa, modulus of 1222 MPa and 925.7 MPa, impact strength of 10.43 J. The natural frequency of both composites was very close to all other volume fractions. The theoretical model also ended up with the same result and the margin of difference between predicted results and experimental results was very minimum.

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Mechanical and free vibration properties of Phoenix sp. fiber reinforced epoxy composites: Influence of sodium bicarbonate treatment

Cited by 8 publications

References 34 publications

Characterization of sustainable natural fiber reinforced geopolymer composites

Characterization of sustainable natural fiber reinforced geopolymer composites

Delamination and surface roughness analysis of jute/polyester composites using response surface methodology: Consequence of sodium bicarbonate treatment

Redeemable environmental damage by recycling of industrial discarded and virgin glass fiber mats in hybrid composites—An exploratory investigation

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