An experimental investigation of the effects of reinforcement of graphene fillers on mechanical properties of bi-directional glass/epoxy composite

Mishra, Birupakshya; Mishra, Debasmita; Panda, P. C.; Maharana, Aditya Narayan

doi:10.1016/j.matpr.2020.03.154

Cited by 22 publications

(6 citation statements)

References 17 publications

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“…Adding GNPs due to reinforcement effect transferred mechanical properties from GNPs to epoxy 76–78 . The tensile strength from 0.25 was reduced because addition of filler after a certain weight percentage lead to the decrement in tensile properties 79 . However, 0.25 wt% GNP loading shows an increment of 60% in Young's modulus as compared to neat sample, which shows significant enhancement in Young's modulus which can be attributed to enhanced dispersion of GNP in matrix which was achieved through mixing process.…”

Section: Resultsmentioning

confidence: 99%

Thermal, mechanical, thermo‐mechanical and morphological properties of graphene nanoplatelets reinforced green epoxy nanocomposites

Yusuf,

Sapuan,

Rashid

et al. 2023

Polymer Composites

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The efficient inclusion of GNPs (graphene nanoplatelets) as an effective nano‐fillers for green polymer matrices produced with 28% of carbon originating from biomass tends to significantly improve mechanical and thermal properties. In the present work, green epoxy nanocomposites with low loading of (0.1, 0.25, and 0.5) wt% of the GNPs were made using a solution blending technique using acetone as the solvent. In mechanical stirring, the ultrasonic bath was used to ensure the efficient dispersion of GNPs within green epoxy. The resulting nanocomposites were comprehensively characterized and compared to unfilled green epoxy. Different tools were used to appraise morphological, thermal, thermo‐mechanical, and mechanical behavior. The results confirmed through FE‐SEM showed an optimal dispersion of GNPs with nanocomposites. The thermal degradation temperature (Td) of GNPs curve with 0.25 wt% loading was shifted toward higher temperature (from 336°C to 342°C) due to low percentage of loading of GNPs which showed an enhance thermal stability of polymer matrix with 0.25 wt% loading. The mechanical results were also in lined with previously published literature, in the tensile test 6.45% and hardness 13.3% increment was achieved. Overall, the results underscored significant improvements in green nanocomposite performance with low wt% of GNPs.Highlights The study focuses on development and characterization of green epoxy nanocomposites, which utilize environmentally friendly materials as a matrix, highlighting the significance of sustainability. The study explores effects of low loading of GNPs in green epoxy nanocomposites. The results demonstrate significant improvements in mechanical and thermal properties with optimized presence of GNPs. This investigation provides insights into optimal amount of GNPs required to achieve improved properties. Research evaluates multifaceted analysis provides a holistic understanding of performance enhancements achieved through inclusion of GNPs.

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Section: Resultsmentioning

confidence: 99%

Thermal, mechanical, thermo‐mechanical and morphological properties of graphene nanoplatelets reinforced green epoxy nanocomposites

Yusuf,

Sapuan,

Rashid

et al. 2023

Polymer Composites

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“…Wang et al 50 have shown that adding 0.062 wt.% GNP into polypropylene composite can increase tensile modulus and interfacial strength by 116%. Mishra et al 51 examined the effects of graphene fillers on the mechanical properties of bi-directional glass/epoxy composite. The results showed that there was a substantial increase in tensile and flexural strength and modulus for laminates.…”

Section: Introductionmentioning

confidence: 99%

Effect of graphene nano-additives on the fatigue limit of fiber-reinforced polymer hybrid composites—A micromechanical modeling procedure

Rahnama,

Ansari,

Hassanzadeh-Aghdam

2023

Proceedings of the Institution of Mechanical Engineers, Part L:

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In this article, the effect of graphene nanoadditives on the fatigue limit of unidirectional glass fiber-reinforced polymer (GFRP) composites has been investigated. A micromechanical model based on the crack growth has been used to analyze the fatigue limit response of unidirectional GFRP hybrid composite containing nanoadditives. The influence of different percentages of graphene nanosheets (GNS) and different types of nanofiller dispersion has been investigated by the micromechanical model. The fatigue limit of unidirectional GFRP hybrid composites has been plotted in terms of glass fiber volume fraction, interfacial friction shear stress, interfacial fracture energy and reference length. The fatigue limit of unidirectional composites can be improved by addition of GNS into the polymer matrix of such composite systems. The obtained results on the GNS dispersion type demonstrate that the uniform dispersion of GNS into the polymer matrix increases the fatigue limit of unidirectional GFRP hybrid composites. As the agglomeration density of GNS is low, the fatigue limit of GFRP hybrid composites will be improved more than when the density of agglomeration is high.

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“…Silicon carbide, aluminum oxide, silicon nitride, boron nitride, etc., are an example of filler material in nano or microparticle form. [6][7][8][9] Graphene nanoplatelets (GNP), carbon nanotube (CNT), graphite, graphene oxide, etc., are the new generation carbon-based nanoparticles that gives remarkable mechanical, thermal, electrical, or wear properties of composites. 10,11 Carbon fiber (CF) is one of the great and primary reinforcement materials among other fibers used in polymer composites.…”

Section: Introductionmentioning

confidence: 99%

Synthesis and mechanical characterization of epoxy hybrid composites containing graphene nanoplatelets

Namdev

Telang

Purohit

2022

Proceedings of the Institution of Mechanical Engineers, Part C:

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The light-weight and excellent mechanical properties of polymer composites have attributed their use in different structural parts in the aerospace and automobile industries over the past decades. In this research, carbon fiber and Graphene nanoplatelets (GNP) reinforced hybrid composites were fabricated via hand layup followed by compression molding. Effect of different weight percent of GNP (0, 0.25, 0.50, 0.75, and 1 wt%) on mechanical, thermal, and physical properties were analyzed. In comparison to other composites, the 0.5 wt% GNP filled carbon fiber/epoxy composite has improved tensile and flexural strength, inter laminar shear strength, and Vickers hardness. At 0.25 wt% GNP-filled epoxy hybrid composite, impact strength was at its peak. The maximum tensile and flexural strength values were obtained at 0.5 wt% of GNP, 11%, and 8% higher than neat fiber composites. The 0.5 wt% GNP composite has the highest heat deflection temperature and thermal conductivity in terms of thermal characteristics. The morphology of composites was explored by field emission scanning electron microscopy and energy-dispersive X-ray analysis. X-ray diffraction and Fourier transform infrared spectroscopy were also performed for nanocomposite characterization.

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An experimental investigation of the effects of reinforcement of graphene fillers on mechanical properties of bi-directional glass/epoxy composite

Cited by 22 publications

References 17 publications

Thermal, mechanical, thermo‐mechanical and morphological properties of graphene nanoplatelets reinforced green epoxy nanocomposites

Thermal, mechanical, thermo‐mechanical and morphological properties of graphene nanoplatelets reinforced green epoxy nanocomposites

Effect of graphene nano-additives on the fatigue limit of fiber-reinforced polymer hybrid composites—A micromechanical modeling procedure

Synthesis and mechanical characterization of epoxy hybrid composites containing graphene nanoplatelets

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