Graphene Size and Morphology: Peculiar Effects on Damping Properties of Polymer Nanocomposites

Sarikaya, Sevketcan; Henry, Todd C.; Naraghi, Mohammad

doi:10.1007/s11340-020-00592-7

Cited by 17 publications

(11 citation statements)

References 38 publications

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“…In most experimental observations, graphene nanoplatelets exhibit one to several stacked-nanosheets with different sizes and morphologies having planar or wrinkled structures with sharp or folded edges [22,39,70]. The graphene nanoplatelet morphology can be governed by two primary factors.…”

Section: Waviness Factormentioning

confidence: 99%

“…For polymer matrix reinforced with microscale fibers; such as carbon fibers (CF) and fiberglass, an infinite aspect ratio is commonly used for the fiber unless it is chopped. However, for the nanoscale fillers or particles, such as graphene nanoplatelets and carbon nanotubes, the situation is different as these nanofillers are produced with a wide range of aspect ratios [39][40][41][42]. The reported results from experiments that have been conducted to capture the influence for particular carbon nanofiller sizes (aspect ratio) mostly refer to an improvement in the engineering properties of nanocomposites as the aspect ratio increases [41][42][43][44].…”

Section: Introductionmentioning

confidence: 99%

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Multiscale Modeling of Epoxy-Based Nanocomposites Reinforced with Functionalized and Non-Functionalized Graphene Nanoplatelets

et al. 2021

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The impact on the mechanical properties of an epoxy resin reinforced with pristine graphene nanoplatelets (GNP), highly concentrated graphene oxide (GO), and functionalized graphene oxide (FGO) has been investigated in this study. Molecular dynamics (MD) using a reactive force field (ReaxFF) has been employed in predicting the effective mechanical properties of the interphase region of the three nanocomposite materials at the nanoscale level. A systematic computational approach to simulate the reinforcing nanoplatelets and probe their influence on the mechanical properties of the epoxy matrix is established. The modeling results indicate a significant degradation of the in-plane elastic Young’s (decreased by ~89%) and shear (decreased by ~72.5%) moduli of the nanocomposite when introducing large amounts of oxygen and functional groups to the robust sp2 structure of the GNP. However, the wrinkled morphology of GO and FGO improves the nanoplatelet-matrix interlocking mechanism, which produces a significant improvement in the out-of-plane shear modulus (increased by 2 orders of magnitudes). The influence of the nanoplatelet content and aspect ratio on the mechanical response of the nanocomposites has also been determined in this study. Generally, the predicted mechanical response of the bulk nanocomposite materials demonstrates an improvement with increasing nanoplatelet content and aspect ratio. The results show good agreement with experimental data available from the literature.

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Section: Waviness Factormentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Multiscale Modeling of Epoxy-Based Nanocomposites Reinforced with Functionalized and Non-Functionalized Graphene Nanoplatelets

et al. 2021

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“…Despite having similar chemical structures, both single and multilayer graphene possesses different morphologies. As clearly shown in work (Sarikaya et al, 2020), multilayer graphene has a very wrinkled, cotton flower-like morphology, while the surface of single flakes of graphene is basically flat. Differences were noticed not only in the case of morphology, but also dimensions, as for multilayer graphene the lateral size was about 5 nm, while for single flakes it was less than half of this value.…”

Section: Bioactivity and Toxicity Of Gfmsmentioning

confidence: 78%

A Review on Development of Ceramic-Graphene Based Nanohybrid Composite Systems in Biological Applications

Jakubczak

Jastrzębska

2021

Front. Chem.

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Graphene-based nanocomposites constitute an interesting and promising material for various applications. Intensive progress in the development of this group of materials offers an opportunity to create new systems useful for drinking water decontamination or other biotechnological applications. Nanohybrid structures of graphene-ceramic systems can be obtained using covalent graphene surface modification with nanoparticles (NPs) of ceramic and/or co-deposition of metals with selected morphology and chemistry. The present paper systematizes the associated bio-related knowledge and inspires future development of graphene/NPs systems. Emerging knowledge and unique research techniques are reviewed within designing the required nanocomposite structure and chemical composition, development and optimization of new methods of covalent surface modification of graphene with NPs as well as analysis of mechanisms governing the formation of covalent bonding. Further, innovative research tools and methodologies are presented regarding the adjustment of functionalities of materials used for the application in drinking water decontamination or biocidal composites. This study provides a comprehensive base for rational development of more complex, hybrid graphene-based nanomaterials with various bio-functionalities that can be further applied in industrial practice.

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“…Graphene, a nanomaterial, is increasingly being used to improve the damping of CFRP because of its excellent mechanical properties and large specific surface area [11][12][13]. Sarikaya et al [14] studied the vibration damping behavior of graphene nanocomposites through dynamic mechanical analysis and cyclic tensile compression test. The experimental results showed that the damping performance of the composite could be improved by about 70% by adding graphene nanoplatelets (GNP).…”

Section: Introductionmentioning

confidence: 99%

Effect of Four Groups of GO-CF/EP Composites with Ideal Infiltration Structure and Different Layering Ways on Damping Properties

Cai

et al. 2022

Polymers

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In this paper, four groups of graphene oxide and carbon fiber hybrid-reinforced resin matrix (GO-CF/EP) composites with different layering ways were prepared by a vacuum infiltration hot pressing system (VIHPS). The damping properties of the specimens with different layering ways were tested by the force hammer method, and the micromorphology of the specimens was photographed by scanning electron microscope. The experimental results showed that the damping properties of GO-CF/EP composites gradually increased with the increase in the number of Y-direction layers. The [XYXYXY]6 has the best damping property, with a damping ratio of 1.187%. The damping ratio is 5.3 times higher than that of [XXXXXX]6 layer mode, and the first-order natural frequency is 77.7 Hz. This is mainly because the stiffness of the X-direction layer is larger than that of the Y-direction layer, and its resistance to deformation is considerable. Therefore, its decay rate is slower. The Y-direction layer has weak resistance to deformation and fast energy attenuation. The increase in the number of Y-direction layers will lead to the overall increase in, and the improvement of, the damping properties of GO-CF/EP composites.

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Graphene Size and Morphology: Peculiar Effects on Damping Properties of Polymer Nanocomposites

Cited by 17 publications

References 38 publications

Multiscale Modeling of Epoxy-Based Nanocomposites Reinforced with Functionalized and Non-Functionalized Graphene Nanoplatelets

Multiscale Modeling of Epoxy-Based Nanocomposites Reinforced with Functionalized and Non-Functionalized Graphene Nanoplatelets

A Review on Development of Ceramic-Graphene Based Nanohybrid Composite Systems in Biological Applications

Effect of Four Groups of GO-CF/EP Composites with Ideal Infiltration Structure and Different Layering Ways on Damping Properties

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