Effects of solid lubricant fillers on the flexural and shear strength response of carbon fabric-epoxy composites

Rao, Yermal Shriraj; Mohan, Nanjangud; Shetty, Nagaraja; Shivamurthy, B.

doi:10.1016/j.polymertesting.2021.107085

Cited by 14 publications

(9 citation statements)

References 67 publications

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“…Filler accumulation, Innegra fabric damage, debonding, and inadequate ller-polymer adhesion portion are also observed from SEM micrograph of CFTIPE tensile experimented sample (Fig. 4d) (Rao et al, 2021).…”

Section: Tensile Fracturementioning

confidence: 70%

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Effect of coir fiber and inorganic filler hybridization on Innegra fiber-reinforced epoxy polymer composites: physical and mechanical properties

Kavya

Bavan

Yogesha³

et al. 2021

Cellulose

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Section: Tensile Fracturementioning

confidence: 70%

“…As the expansion of inorganic ller expands the crucial value, the epoxy resin network's movement may get harmed. This can in uence bad-wetting with the ber and potentially reduce the shear strength value (Rao et al, 2021). The resin networks around the surface of the particle are entirely dissimilar from the extent polymer.…”

Section: (E)mentioning

confidence: 99%

Effect of coir fiber and inorganic filler hybridization on Innegra fiber-reinforced epoxy polymer composites: physical and mechanical properties

Kavya

Bavan

Yogesha³

et al. 2021

Cellulose

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“…Entanglement of filler material over epoxy chain forms hurdles for moving of chains at external load. The polymer chain entanglement is initiating from the weak interfaces between matrix and reinforcement that improvise the flexural strength [47]. These BN particles have the mechanical interlocking characteristic that enhances interfacial adhesion between reinforcements and matrix, increasing flexural strength [48,49].…”

Section: Effect Of Fillers On Flexural Behavior Of Compositementioning

confidence: 99%

Effect of Graphene Oxide-Boron Nitride-Based Dual Fillers on Mechanical Behavior of Epoxy/Glass Fiber Composites

Kavimani

Gopal

Stalin³

et al. 2021

Journal of Nanomaterials

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Graphene and its derivatives have excellent properties such as high surface area, thermal, and mechanical strength, and this fact made the researchers promote them as the possible filler material for fiber-matrix composite. The current research deals with validation on the effect of graphene oxide boron nitride filler over mechanical and thermal stability of epoxy glass fiber polymer matrix composite. The objective of this experimental investigation is to develop glass fiber reinforced polymer composites with hybrid filler addition. The matrix material selected is epoxy resin, whereas the glass fiber is selected as reinforcement, while boron nitride and graphene oxide are chosen as fillers. Compression moulding methodology is followed to develop the composites with the constant percentage of fiber loading, graphene oxide filler, and varying boron nitride content from 0 to 3 wt.% at an equal interval of 1 wt.%. The developed composite is analyzed for mechanical properties, and the fractured surface is analyzed through the scanning electron microscope. The addition of hybrid fillers enhances the fiber-matrix bonding strength and improves the thermal and mechanical properties up to a specific limit. Thermal gravimetric analysis was conducted to understand the thermal behavior of composite. The results revealed that the addition of filler improved the thermal stability of the composites.

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“…The results were very scattered, visible on the chart (Figure 11). The result of shear force to debond resin droplets from fibers indicated that this bond strength was meager for PTFE fibers (about 1 MPa) compared to Kevlar (38-40 Mpa), carbon (40-60 Mpa), and glass fiber (30)(31)(32)(33). This indicates a non-polarity and surface inertness of PTFE, which does not tend to bond with the resin.…”

Section: Microbond Test Observationmentioning

confidence: 99%

“…Also, deformation of matrix, fiber pull-out, and fiber breakage at each interface significantly affects hybrid composites' impact behavior. 30 In order to more accurately observe the impact behavior of composites and evaluate the role of solid lubricant and reinforcement and performance of braid structure in changing the properties of the composite, SEM images with different magnifications of fracture surface were performed. As shown in all SEM figures (Figure 14), the trend of impact properties was well correlated to that of PTFE presence in all samples.…”

Section: Impact Behaviormentioning

confidence: 99%

The micro/macro mechanical approach of reinforced braid composite used in tribology

Zahabi

Sheikhzadeh

Shahramforouz

et al. 2021

Journal of Composite Materials

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Self-lubricant composite is a flourish scope of technology that merits academic and industry attention, as it is a specific part which essentially employed in acute operation conditions. In the present study, the mechanical properties of the self-lubricating composite of two-dimensional (2D) and three-dimensional (3D) braid were investigated. The composites contained Polytetrafluoroethylene (PTFE) fibers as a lubricant and glass, carbon, and Kevlar as a reinforcement, hierarchically incorporated into the structure. In order to study the composite behavior as well as to determine the modulus and hardness of the sample, an indentation test, which is very similar in loading to abrasion tests, was applied. A microband test was also conducted to assess the adhesion between the resin and the PTFE fiber. Shear punch tests were performed to evaluate the total shear strength and impact test to estimate energy absorption and impact strength. The results showed that PTFE/epoxy matrix has poor adhesion. Composites with higher PTFE volume fraction had good energy absorption and, at the same time, low shear strength. The higher modulus of carbon composites was concerned.

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Effects of solid lubricant fillers on the flexural and shear strength response of carbon fabric-epoxy composites

Cited by 14 publications

References 67 publications

Effect of coir fiber and inorganic filler hybridization on Innegra fiber-reinforced epoxy polymer composites: physical and mechanical properties

Effect of coir fiber and inorganic filler hybridization on Innegra fiber-reinforced epoxy polymer composites: physical and mechanical properties

Effect of Graphene Oxide-Boron Nitride-Based Dual Fillers on Mechanical Behavior of Epoxy/Glass Fiber Composites

The micro/macro mechanical approach of reinforced braid composite used in tribology

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