Fabrication of Electrospun Exfoliated Graphite Nanosheets/Polystyrene composite nanofiber mats

Abdelhady, Saleh S; Elbadawi, Rehab E; Zoalfakar, Said H.

doi:10.1177/08927057221129489

Cited by 5 publications

(4 citation statements)

References 62 publications

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“…RSM, one of the ideal and widely used approaches in DOE, was used in this study. This approach is a collection of mathematical and statistical techniques for modeling and evaluating processes in which different responses are affected by several independent variables, and its purpose is the optimization of them 35,36 . Therefore, the advantage of RSM over the other approaches lies in its ability to model and optimize complex processes with multiple variables.…”

Section: Methodsmentioning

confidence: 99%

“…This approach is a collection of mathematical and statistical techniques for modeling and evaluating processes in which different responses are affected by several independent variables, and its purpose is the optimization of them. 35,36 Therefore, the advantage of RSM over the other approaches lies in its ability to model and optimize complex processes with multiple variables. Also, it is useful when the relationship between variables is nonlinear, and the goal is single-and multi-objective optimization of response variables.…”

Section: Design Of Experimentsmentioning

confidence: 99%

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Foaming‐structural relationship of rotational molded nanocomposite foams: Box–Behnken response surface methodology implementation

Daryadel,

Azdast

2024

Polymers for Advanced Techs

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Rotational molded foam is known as one of the most popular types of polymeric foams due to its unique properties. Hence, the production of rotational molded foam samples has been well‐addressed in the foam literature, and several researchers have tried to produce these samples using different approaches. However, there is no comprehensive research that investigates the structural properties of nanocomposite foam samples produced by a two‐step process of rotational molding and batch foaming. Therefore, the effect of nanoclay and foam processing parameters on the structural properties of the samples produced by this method was investigated in this study. For this purpose, the Box–Behnken design of response surface methodology was used. The results revealed that the foaming temperature was the most effective parameter on cell density and expansion ratio. Also, the foaming time was reported as the most effective parameter on the cell size. Then, the response variables were subjected to single‐ and multi‐objective optimizations. Finally, the addition of 1.2 wt% of nanoclay, the foaming temperature of 141°C, and the foaming time of 85 s were introduced as the most optimal conditions to simultaneously achieve maximum cell density and expansion ratio and minimum cell size in the rotational molded nanocomposite foam samples.

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Section: Methodsmentioning

confidence: 99%

Section: Design Of Experimentsmentioning

confidence: 99%

Foaming‐structural relationship of rotational molded nanocomposite foams: Box–Behnken response surface methodology implementation

Daryadel,

Azdast

2024

Polymers for Advanced Techs

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“…5,6 Biomaterials such as chitosan, gelatin, and other natural and synthetic polymers, as well as calcium phosphate ceramics, have been electrospun to produce nanofibers. 7 Polystyrene loaded with varied exfoliated graphite nanosheets composite nanofiber concentrations has been effectively produced using the electrospinning method. 8 Nylon 6,6/epoxy (NY/EP) hybrid nanofibril composites reinforced with treated basalt fiber (TBF) were created using the electrospinning technique.…”

Section: Introductionmentioning

confidence: 99%

Optimization of electrospun chitosan/polyethylene oxide hybrid nanofibril composite via response surface methodology

Abdelhady

El‐Desouky

Kassab

et al. 2023

Journal of Thermoplastic Composite Materials

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The present study is an attempt to optimize the electrospinning parameters to fabricate chitosan/polyethylene oxide hybrid nanofiber composite with minimum diameter and coefficient of variation (homogeneity) by using response surface methodology (RSM). Based on central composite design (CCD), four factors (the chitosan/PEO ratio, the applied voltage, the needle-to-collector distance, and the spinning angle) was applied to evaluate the individual and combined effects of the parameters on the average diameter of nanofibers. Chitosan (CH) was blended with Polyethylene oxide (PEO) at weight ratios of 1:1, 2:1, 3:1, 4:1, and 5:1. As the composition ratio of chitosan was reduced, the viscosity of the chitosan/PEO blend solution also dropped. The RSM model identified the following conditions as necessary to produce the desired and most uniform CS/PEO fiber diameter: a CS/PEO blend ratio of 2:1 (w/w), a voltage of 25 kV, a distance of 20 cm, and a spinning angle of 45°. The average nanofiber diameter and homogeneity under these conditions were calculated to be 73 nm and 20.5%, respectively, compared to the predicted values of 71 nm and 15.58%, respectively.

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“…The composites' tensile strengths and Young's modulus are enhanced compared to PS NFs with increasing EGNS concentrations. 29 In a weight ratio of 1, 2, 3, 4, and 5, NY was mixed with epoxy to produce hybrid NFs made of NY and epoxy (EP) polymers. The sequencing technique used to dissolve both polymers and the minimum diameter and standard deviation for hybrid NFs were determined to be 180 ± 35 nm.…”

Section: Introductionmentioning

confidence: 99%

On investigation of flexural, morphological, and shape memory properties for 3D printed PLA-PVDF NFs-PLA interleave composite structures for smart gripper applications

Thakur,

Singh,

Kumar

2023

Journal of Thermoplastic Composite Materials

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In the present study, the flexural, morphological, and shape memory properties of polylactic acid (PLA) matrix sandwiched with polyvinylidene difluoride (PVDF) Nanofibers (NFs) interleave composite structures have been investigated for applications of 4D printing such as smart grippers, and smart actuators. Firstly, an electrospinning process was carried out to form a PVDF NFs mat (thickness: 0.10–0.20 mm) under a flow rate of 3 µL/sec, an applied voltage of 12 kV, and a TCD of 100 mm. Further, the PVDF NFs mat was deposited in between the PLA layers, primed through fused filament fabrication (FFF) based 3D printing to manufacture the PLA-PVDF NFs-PLA based structures. In the next stage, the flexural properties were investigated for manufactured composite structures. The results highlight that the flexural strength of the composites was enhanced by 6.47% as compared to PLA. Results of the study are supported by a scanning electron microscope (SEM), X-ray diffraction (XRD), Fourier transform infrared (FTIR), V-I, V-R, and shape memory analysis. The finding of the study suggests that composite structures primed by higher mat thickness and zig-zag infill pattern have resulted in higher electrical resistance and better shape memory effect. However, increasing the voltage in the composite structure having higher mat thickness with a zig-zag fill pattern has resulted in a higher resistance drop.

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Fabrication of Electrospun Exfoliated Graphite Nanosheets/Polystyrene composite nanofiber mats

Cited by 5 publications

References 62 publications

Foaming‐structural relationship of rotational molded nanocomposite foams: Box–Behnken response surface methodology implementation

Foaming‐structural relationship of rotational molded nanocomposite foams: Box–Behnken response surface methodology implementation

Optimization of electrospun chitosan/polyethylene oxide hybrid nanofibril composite via response surface methodology

On investigation of flexural, morphological, and shape memory properties for 3D printed PLA-PVDF NFs-PLA interleave composite structures for smart gripper applications

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