Mechanical behavior of Graphene decorated carbon fiber reinforced polymer composites: An assessment of the influence of functional groups

Gangineni, Pavan Kumar; Yandrapu, Sagar; Ghosh, Sohan Kumar; Anand, A. Vivek; Prusty, Rajesh Kumar; Ray, Bankim Chandra

doi:10.1016/j.compositesa.2019.04.017

Cited by 113 publications

(82 citation statements)

References 53 publications

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“…The increased shear strength at the interlaminar region due to the inclusion of GO is ascribed to superior wettability between the CFs and epoxy mediated by GO (comprising oxygen‐based functionalities) 29 . The enhanced wettability leads to constriction among the polymer chains and enhances the mechanical interlocking between the CF and epoxy 44 . Various groups accomplished the wettability of CF by different treatment techniques with GO.…”

Section: Resultsmentioning

confidence: 99%

Relevance of graphene oxide as nanofiller for geometrical variation in unidirectional carbon fiber/epoxy composite

Pathak

Garg

Yokozeki

et al. 2021

J of Applied Polymer Sci

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Curved geometry in unidirectional CFRP (UD‐CFRP) demands ideal shape optimization to attain superior performance while maintaining the desired high strength to weight ratio. Herein, the effect of graphene oxide (GO) as the potential filler to improve the mechanical and thermal properties of flat and curved specimens of UD‐CFRP was investigated. The GO was synthesized using Hummer's method and introduced in the epoxy resin by wet transfer technique. Three‐point and four‐point bending analysis of UD‐CFRP showed maximum flexural strength and modulus at 0.3 wt% GO addition in UD‐CFRP. The improved interfacial adhesion of 0.3 wt% GO incorporated UD‐CFRP was realized by calculating storage modulus, reinforcement efficiency factor (r), C‐factor, adhesion factor, cross‐linking density, and glass transition temperature (Tg) from dynamic mechanical analyzer. Fracture analysis by scanning electron microscope showed the superior interlocking in carbon fiber, and epoxy polymer at 0.3 wt% GO addition.

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Section: Resultsmentioning

confidence: 99%

Relevance of graphene oxide as nanofiller for geometrical variation in unidirectional carbon fiber/epoxy composite

Pathak

Garg

Yokozeki

et al. 2021

J of Applied Polymer Sci

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“…Acquired carbon fiber had an epoxide coating which could hinder the optimum deposition due to reduced conductivity. Hence desizing treatment was performed, where carbon fiber was exposed to a temperature of 120°C for 2 h in an oven to remove this coating 30,31 . In the EPD process, carbon fibers and 216 stainless steel plates were used as cathodes and anodes respectively, with an aerial dimension of 25 cm × 25 cm.…”

Section: Methodsmentioning

confidence: 99%

Improving delamination resistance of carbon fiber reinforced polymeric composite by interface engineering using carbonaceous nanofillers through electrophoretic deposition: An assessment at different in‐service temperatures

Fulmali

Nuli

et al. 2020

J of Applied Polymer Sci

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In this article, modification of carbon fiber surface by carbon based nanofillers (multi‐walled carbon nanotubes [CNT], carbon nanofibers, and multi‐layered graphene) has been achieved by electrophoretic deposition technique to improve its interfacial bonding with epoxy matrix, with a target to improve the mechanical performance of carbon fiber reinforced polymer composites. Flexural and short beam shear properties of the composites were studied at extreme temperature conditions; in‐situ cryo, room and elevated temperature (−196, 30, and 120°C respectively). Laminate reinforced with CNT grafted carbon fibers exhibited highest delamination resistance with maximum improvement in flexural strength as well as in inter‐laminar shear strength (ILSS) among all the carbon fiber reinforced epoxy (CE) composites at all in‐situ temperatures. CNT modified CE composite showed increment of 9% in flexural strength and 17.43% in ILSS when compared to that of unmodified CE composite at room temperature (30°C). Thermomechanical properties were investigated using dynamic mechanical analysis. Fractography was also carried out to study different modes of failure of the composites.

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“…Another method used to improve the electrical and mechanical properties of CFRPs is fibre surface modification [69]. This involves the treatment of, or deposition onto, the carbon fibre surface.…”

Section: Fibre Surface Modificationmentioning

confidence: 99%

Methods of modifying through-thickness electrical conductivity of CFRP for use in structural health monitoring, and its effect on mechanical properties – A review

Brown

Robert

Koutsos

et al. 2020

Composites Part A: Applied Science and Manufacturing

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As the use of carbon fibre reinforced polymers (CFRP) is continuing to increase in engineering applications, more functionalities will be required. Having an enhanced through-thickness electrical conductivity can be a useful functionality for CFRPs which will minimise their damage from lightning strikes, and will help in their real-time monitoring. For most modification methods there is an adverse effect on the manufacturing and the fibre volume fraction, which influence the mechanical properties of the resulting composites. Simultaneous improvement of multiple properties of CFRPs is difficult, and as such the ways in which different materials and processes improve properties of CFRPs need to be understood in depth. This review discusses research that attempts to improve the through-thickness electrical conductivity of CFRPs with interest in the effects on mechanical properties, specifically interlaminar fracture toughness. The last section discusses the effect and use of these methods to improve structural health monitoring (SHM) of CFRP.

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Mechanical behavior of Graphene decorated carbon fiber reinforced polymer composites: An assessment of the influence of functional groups

Cited by 113 publications

References 53 publications

Relevance of graphene oxide as nanofiller for geometrical variation in unidirectional carbon fiber/epoxy composite

Relevance of graphene oxide as nanofiller for geometrical variation in unidirectional carbon fiber/epoxy composite

Improving delamination resistance of carbon fiber reinforced polymeric composite by interface engineering using carbonaceous nanofillers through electrophoretic deposition: An assessment at different in‐service temperatures

Methods of modifying through-thickness electrical conductivity of CFRP for use in structural health monitoring, and its effect on mechanical properties – A review

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