Experimental investigation on the effect of fiber volume fraction of sponge gourd outer skin fiber reinforced epoxy composites

Sahayaraj, A. Felix; Muthukrishnan, M.

doi:10.1002/pc.26754

Cited by 17 publications

(10 citation statements)

References 32 publications

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“…The correct proportion of the fiber content should be determined because several studies have expressed that it is one of the most important factors in enhancing the mechanical properties of fiber reinforced composites. [ 28,29 ] The ASTM D2584 standard is typically used to calculate the fiber volume proportion as follows in Equation () [ 30 ] .

V_{f} = \{\frac{ρ_{m} . w_{f}}{ρ_{m} . w_{f} + ρ_{f} . w_{m}}\}

Where,

V_{f}

denotes the volume fraction of the fiber,

ρ_{f}

denotes fiber density,

ρ_{m}

denotes matrix density,

w_{f}

denotes weight of the fiber, and

w_{m}

denotes weight of the matrix. When it comes to textiles, the spacing between the yarns of the textile pattern determines the total fiber volume proportion.…”

Section: Resultsmentioning

confidence: 99%

“…The correct proportion of the fiber content should be determined because several studies have expressed that it is one of the most important factors in enhancing the mechanical properties of fiber reinforced composites. [28,29] The ASTM D2584 standard is typically used to calculate the fiber volume proportion as follows in Equation (1) [30] .…”

Section: Volume Fraction and Void Analysis Of Fabricated Samplesmentioning

confidence: 99%

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Improvement of interfacial adhesion of CuO nanostructured carbon fiber reinforced polymer composites

Shankar

Bajpai

2022

Polymer Composites

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Hydrothermal technique was used to deposit copper-oxide (CuO) nanostructures on woven carbon fibers (WCF) to produce a nanostructured interphase that increased the interfacial strength with an epoxy resin matrix. In order to create laminated hybrid composites, CuO-modified WCF was reinforced with mixture of bisphenol-A epoxy resin and dimethyl aniline hardener as matrix using the vacuum bagging approach. Enhanced mechanical qualities are the result of increased volume fraction of CuO nanostructures, where the void content is minimal. The mechanical characteristics such as impact strength and tensile strength of CuO-coated WCF reinforced epoxy resin composite samples were assessed using drop-down impact test and universal material testing system. The outcomes demonstrate a considerable improvement in impact energy absorption (74.8%), elastic modulus (52%) tensile strength (42%) and in-plane shear strength (32%) for the CuO-coated WCF reinforced epoxy resin composites. This work demonstrates that the development of CuO nanostructures can lessen composite delamination and enhance composite performance because of the increase in interfacial surface area between the matrix and the fiber by CuO nanostructures potentially expanding the spectrum of structural applications for these materials.

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V_{f} = \{\frac{ρ_{m} . w_{f}}{ρ_{m} . w_{f} + ρ_{f} . w_{m}}\}

Where,

V_{f}

denotes the volume fraction of the fiber,

ρ_{f}

denotes fiber density,

ρ_{m}

denotes matrix density,

w_{f}

denotes weight of the fiber, and

w_{m}

denotes weight of the matrix. When it comes to textiles, the spacing between the yarns of the textile pattern determines the total fiber volume proportion.…”

Section: Resultsmentioning

confidence: 99%

“…The correct proportion of the fiber content should be determined because several studies have expressed that it is one of the most important factors in enhancing the mechanical properties of fiber reinforced composites. [28,29] The ASTM D2584 standard is typically used to calculate the fiber volume proportion as follows in Equation (1) [30] .…”

Section: Volume Fraction and Void Analysis Of Fabricated Samplesmentioning

confidence: 99%

Improvement of interfacial adhesion of CuO nanostructured carbon fiber reinforced polymer composites

Shankar

Bajpai

2022

Polymer Composites

View full text Add to dashboard Cite

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“…The increase in fiber content directly increases the water absorbency of composite. 35 Because sample with higher fiber loading % provides more pores and voids, which helps to absorbs more water and vice-versa. Therefore, for sample B, water absorbency is lower than sample A and for sample C, water absorbency is lower than previous two.…”

Section: Water Absorption Analysismentioning

confidence: 99%

Preparation and characterization of snake plant fiber reinforced composite: A sustainable utilization of biowaste

Mishfa,

Alim,

Repon

et al. 2023

SPE Polymers

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Natural fibers are one of the most attractive materials in biocomposites due to their potential for sustainability. This study aims to prepare sustainable composite materials using fibers from Sansevieria trifasciata (snake plant) and to investigate their mechanical, morphological, and water absorption properties. The composite was prepared with epoxy resin through a manual hand lay‐up process, maintaining standard parameters with changeable reinforcement (10%, 20%, and 30%). The mechanical properties (tensile, impact, and flexural strength), Scanning Electron Microscopy (SEM), Fourier Transform Infrared Spectroscopy (FTIR), and water absorbency of the composites were evaluated. The result showed that the tensile strength, flexural strength, and impact resistance of the composites are 6.99 MPa, 10.77 MPa, and 14 J, respectively, for 30% fiber components, which are significantly higher than other composite materials. The SEM analysis showed a strong interfacial bond between the snake plant fiber and the epoxy resin. The FTIR analysis revealed a reduction in hemicellulose and lignin and an improvement in the interfacial adhesion between snake plant fiber and epoxy resin. The composites also demonstrated time‐dependent increases in water absorption, with the sample containing 30% fiber components showing the best absorbency performance at 0.88%.Highlights A study is being conducted on the effective and sustainable use of biowaste. The composite materials loaded with 30% fibers had significantly high tensile strength, flexural strength, and impact resistance. The SEM analysis of snake plant fiber‐reinforced polymer composite showed a strong interfacial bond between fiber and epoxy resin. The FTIR analysis of the composite revealed the reduction of hemicellulose and lignin. The use of non‐renewable materials is reduced, and eco‐friendliness is promoted.

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“…[ 6 ] Automobile parts built of flax fiber reinforced composite have superior sound absorption capabilities and less weight, boosting vehicle fuel economy. [ 7–9 ]…”

Section: Introductionmentioning

confidence: 99%

“…[6] Automobile parts built of flax fiber reinforced composite have superior sound absorption capabilities and less weight, boosting vehicle fuel economy. [7][8][9] Petro-based thermosetting resins, particularly epoxy, are extensively used in the fabrication of polymer matrix composite materials due to their remarkable properties. These properties include minimal shrinkage during curing, corrosion resistance, high modulus, excellent adhesion, and impressive performance at elevated temperatures, making them highly desirable in composite manufacturing.…”

Section: Introductionmentioning

confidence: 99%

Investigation on the effect of castor‐oil based bio‐resins on mechanical, visco‐elastic, and water diffusion properties of flax fiber reinforced epoxy composites

2023

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Due to the depletion of petro‐based sources and environmental consciousness, researchers are striving to replace synthetic fibers and resins in composites with bio‐sourced ones without compromising their properties. In this regard, the present study investigates the effect of partially replacing epoxy moieties with castor oil based bio‐resins on various properties of epoxy resin and its flax fiber reinforced composite system to achieve sustainable materials, thereby encouraging the bio‐based theme. Base‐catalyzed transesterification was used to synthesize epoxy methyl ricinoleate (EMR) as a low viscous reactive green monomer derived from epoxidized castor oil (ECO). The influence of both ECO and EMR bio‐resin on various mechanical, thermo‐mechanical properties, free mode vibration, and water absorption of epoxy and its composites were studied. The composition with 20% of ECO and EMR was optimized based on stiffness‐toughness balance. The inclusion of 20% EMR significantly escalated the tensile, impact, and fracture toughness properties of epoxy composites by 6.45%, 12.8%, and 14.2%, respectively. The strong fiber‐matrix interface was confirmed by increased pullout adhesion by 21% and 35.1% due to the addition of ECO and EMR, respectively. Dynamic mechanical analyzer revealed a 12% higher storage modulus for EMR modified composites than ECO counterparts. Scanning electron microscope morphology revealed superior interfacial adhesion between fiber and matrix in case of EMR modified bio‐composite, which resulted in a lower water diffusion coefficient than ECO modified bio‐composite. These results showed that the 20% EMR customized epoxy composite is dimensionally stable with improved mechanical properties and may act as a green alternative to petro‐sourced epoxy composites in automotive and semistructural applications. Highlights Effects of castor oil based bio‐resins on epoxy composites are studied. Composites with significant bio‐content (~50 wt%) are developed. EMR modified epoxy composites exhibited improved mechanical properties. A strong fiber‐matrix interface was confirmed by increased pullout adhesion. Reduction in pot life of epoxy was observed on adding ECO and EMR.

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Experimental investigation on the effect of fiber volume fraction of sponge gourd outer skin fiber reinforced epoxy composites

Cited by 17 publications

References 32 publications

Improvement of interfacial adhesion of CuO nanostructured carbon fiber reinforced polymer composites

Improvement of interfacial adhesion of CuO nanostructured carbon fiber reinforced polymer composites

Preparation and characterization of snake plant fiber reinforced composite: A sustainable utilization of biowaste

Investigation on the effect of castor‐oil based bio‐resins on mechanical, visco‐elastic, and water diffusion properties of flax fiber reinforced epoxy composites

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