Effect of graphene nanoplatelets on mechanical and impact properties of an aramid/glass-reinforced epoxy composite

Doğan, Nurettin Furkan; Özbek, Özkan; Erkliğ, Ahmet

doi:10.1515/mt-2021-2064

Cited by 9 publications

(3 citation statements)

References 41 publications

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“…According to the images, it can be said that the fiber surfaces of the samples which have a high buckling performance were seen as rougher than the pure ones and showed a better fiber/matrix bonding. [ 49 ] This demonstrated that NC particles contributing to load transferring capability from matrix to fiber reinforcements increased the buckling resistance. This situation improved the buckling performance of the samples particularly seen in 0.5, 1, and 1.5 wt% compared with pure samples.…”

Section: Resultsmentioning

confidence: 99%

Assessment of nanoclay impact on buckling response of carbon/Kevlar hybrid composites

et al. 2023

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This study investigates the effects of nanoclay (NC) particles on the buckling behavior of carbon/Kevlar intraply hybrid composites. The laminates containing various amounts of NC particles (0.5%, 1%, 1.5%, 2%, and 3% by weight) were manufactured using hand layup stacking followed by vacuum bag molding process. The prepared samples were subjected to axial and lateral compressive loads under fixed-fixed and fixed-free boundary conditions, respectively, and the relevant critical buckling loads were determined. Furthermore, the failure modes were examined via microscopic views taken from the damaged areas on the samples to fully understand the influences of NC particles on buckling characteristics. The findings demonstrated that the buckling behaviors of the samples were significantly affected by the introduction of NC particles. Compared with the composite samples without any NC particles, the composite samples with 1 wt% NC particles showed an increase of 21.12% and 25.33% in the axial and lateral critical buckling loads, respectively. However, the inclusion of NC particles with an amount that higher than 1 wt% showed a decreasing trend in terms of critical loads for both buckling loadings, which can be viewed as a measure of load-bearing capability. Moreover, the samples filled with 3 wt% NC particles exhibited a decrement on critical loads compared with those of samples without any NC particle filler. With the help of microscopic views, the failure modes were detected as matrix fragmentation and delamination for both buckling loadings.

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Section: Resultsmentioning

confidence: 99%

Assessment of nanoclay impact on buckling response of carbon/Kevlar hybrid composites

et al. 2023

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“…At 0.1 wt%, the GnPs-matrix resin-fiber interactions resulted in a significant improvement in mechanical and impact properties, indicating a better load transfer. 23 According to the outcome, 24 graphene nanoplatelets had a significant influence on the impact and mechanical properties of glass/aramid-reinforced epoxy composites. Among the aramid fiber locations, absorbing energy, peak load values, and displacement were significantly affected.…”

Section: Introductionmentioning

confidence: 99%

Effectiveness of multi‐walled carbon nanotube on the improvement of tensile, flexural, and low‐velocity impact properties of hybrid Kevlar/carbon fiber reinforced epoxy‐based composites

Sulaiman,

Abdo,

Erkliğ

et al. 2024

Polymer Composites

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In this study, the effects of hybridizing carbon fibers with Kevlar fibers and incorporating multiwalled carbon nanotube (MWCNT) particles on low‐velocity impact, tensile, and flexural performance were evaluated experimentally. A manual lay‐up procedure followed by vacuum bag molding was used to construct hybrid composites (carbon and Kevlar) with and without MWCNTs, as well as hybrid composites with varying MWCNT weight ratios of carbon and Kevlar fiber reinforcements. When 0.1 wt% of MWCNT was added to the epoxy to enhance absorbed energy and peak load, the maximum improvements observed were 31% and 28%, respectively. The addition of MWCNTs by 0.5 wt% to the epoxy enhanced the flexural strength and flexural modulus by 66% and 41%, and by 5% with 0.1 wt% and 12.3% with 0.5 wt% MWCNT for tensile strength and tensile modulus, respectively. These improvements were observed in both tensile strength and tensile modulus. As for (C5K10C5), the maximum improvements in absorbed energy and peak load were observed to be 11.2% and 31%, respectively, corresponding to a 0.1 wt% MWCNT addition, whereas the maximum improvement in flexural strength and flexural modulus was 12.28% and 44%, respectively, with a 0.1 wt% MWCNT. These improvements in mechanical properties are primarily attributed to the enhanced stress transfer properties from fibers and nanoparticles to the matrix. This enhancement is a result of the strong interfacial interactions between epoxy and MWCNT nanoparticles.Highlights MWCNT inclusion effects on mechanical properties of carbon/Kevlar hybrid composites. MWCNT inclusion effects on low‐velocity impact properties of Carbon/Kevlar hybrid composites. The effects of Kevlar and carbon stacking sequence with MWCNT incorporation were investigated.

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“…In a search in which Kevlar fiber and sisal fiber formed a hybrid composite, it was found that maximum mechanical properties were obtained when the nano silica additive to the polyester resin was 4%, and it was understood that increasing the nano silica ratio more than 4% had a negative effect on the mechanical properties [21]. In the study of Dogan et al [22], they found that the absorbed energy and deformation amounts of graphene nanoplatelets added at different rates to the hybrid structure consisting of Aramid fiber and carbon fiber also had a significant effect. It was stated that 0.1% and 0.25% by weight nanoparticles added to the resin created the best effect on the structures.…”

Section: Introductionmentioning

confidence: 99%

Characterization Of Jute/Aramid Hybrid Composite Materials with Using Different Resins

KARAÇOR

Özcanlı

2022

Sakarya University Journal of Science

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For the last twenty to thirty years, interest in the use of hybrid fiber-reinforced composites has gradually increased due to their potential for various applications. The balanced strength and stiffness properties of hybrid composites, along with the advantages of lighter weight and lower cost, have made them an important step toward replacing traditional materials. In this study, a hybrid composite was made from a combination of Jute fabric from natural fibers, Aramid fabric from synthetic fibers, and two different resins (polyester and vinylester). This type of study was proposed because there is little research in the literature on how the use of polyester and vinyl ester resins affects the mechanical properties of homogeneous composites and hybrid composites. The vacuum assisted resin transfer molding process was used for the fabrication. The mechanical properties of the manufactured products were determined by tensile and hardness tests, and their morphological structures were examined by taking scanning electron microscope images. The results indicate that the value of tensile strength of the Jute/Aramid hybrid samples in the productions prepared with polyester resin is 37.6% higher than in those made with vinyl ester resin. When comparing the values for microhardness, the results of the Jute/Aramid hybrid specimens produced with polyester resin were 1.20 times higher than those produced with vinyl ester resin. Scanning Electron Microscopy images of the specimens also support the test results morphologically by providing the opportunity to examine the structures of the fracture mechanisms after the tensile test.

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Effect of graphene nanoplatelets on mechanical and impact properties of an aramid/glass-reinforced epoxy composite

Cited by 9 publications

References 41 publications

Assessment of nanoclay impact on buckling response of carbon/Kevlar hybrid composites

Assessment of nanoclay impact on buckling response of carbon/Kevlar hybrid composites

Effectiveness of multi‐walled carbon nanotube on the improvement of tensile, flexural, and low‐velocity impact properties of hybrid Kevlar/carbon fiber reinforced epoxy‐based composites

Characterization Of Jute/Aramid Hybrid Composite Materials with Using Different Resins

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