The influence of graphene reinforced electrospun nano-interlayers on quasi-static indentation behavior of fiber-reinforced epoxy composites

Goodarz, Mostafa; Bahrami, S. Hajir; Sadighi, Mojtaba; Saber‐Samandari, Saeed

doi:10.1007/s12221-017-6700-3

Cited by 25 publications

(13 citation statements)

References 41 publications

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“…The melting temperature ( T m ) and T g of the PA 66 nanofiber mat were determined as 256.2 °C and 48.80 °C, respectively. These results are consistent with that obtained by Goodarz et al . As will be shown in later sections, the PA 66 nanofibers will retain their morphology in the final composite laminates because the curing temperature of the epoxy is well below the melting temperature of the PA 66 nanofiber mat.…”

Section: Methodssupporting

confidence: 92%

Enhancement of interlaminar fracture toughness of carbon fiber–epoxy composites using polyamide‐6,6 electrospun nanofibers

Beylergi̇l

Tanoğlu

Aktaş

2017

J of Applied Polymer Sci

104

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In this study, carbon fiber-epoxy composites are interleaved with electrospun polyamide-6,6 (PA 66) nanofibers to improve their Mode-I fracture toughness. These nanofibers are directly deposited onto carbon fabrics before composite manufacturing via vacuum infusion. Three-point bending, tensile, compression, interlaminar shear strength, Charpy impact, and double cantilever beam tests are performed on the reference and PA 66 interleaved specimens to evaluate the effects of PA 66 nanofibers on the mechanical properties of composites. To investigate the effect of nanofiber areal weight density (AWD), nanointerlayers with various AWD are prepared by changing the electrospinning duration. It is found that the electrospun PA 66 nanofibers are very effective in improving Mode-I toughness and impact resistance, compressive strength, flexural modulus, and strength of the composites. However, these nanofibers cause a decrease in the tensile strength of the composites. The glass-transition temperature of the composites is not affected by the addition of PA 66 nanofibers.

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Section: Methodssupporting

confidence: 92%

Enhancement of interlaminar fracture toughness of carbon fiber–epoxy composites using polyamide‐6,6 electrospun nanofibers

Beylergi̇l

Tanoğlu

Aktaş

2017

J of Applied Polymer Sci

104

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“…Consistent quality, high surface area and mat porosity attracted the attention of researchers, engaged in improving load bearing response of composites, to adopt it as interleaving material to toughen laminated composites. Additionally, classic issues with nanoparticles/nanofibers such inhomogeneous dispersion, increase in viscosity and agglomeration can be avoided using nanofiber non‐woven mats. Nanofiber interleaves have proved to be workable with a variety of fabrication techniques including compression molding, vacuum‐assisted resin transfer molding, and vacuum infusion.…”

Section: Introductionmentioning

confidence: 99%

Mechanical properties of electrospun nanofiber reinforced/interleaved epoxy matrix composites—A review

et al. 2020

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Electrospinning has by far proved to be the most successful method to spin high aspect and surface area to volume ratio nanofiber for multidisciplinary applications. Its application, however, as reinforcement in fiber reinforced polymer matrix composites (FRPC's) started from interlaminar fracture toughness improvement through interleaving. Since then, its usage both in short fiber and nonwoven mat formation has been phenomenally increased to tailor mechanical properties. This review paper focuses on application of nanofiber in multiscale reinforced epoxy matrix composites for mechanical performance. After a brief overview of electrospinning and spinning parameters, it presents a case for nanofiber as reinforcement with attendant mechanisms to develop insight into nanocomposite performance. Next, it summarizes and shares findings of studies, carried out in last 10 years, seeking to enhance tensile, flexural, interlaminar toughness, impact, and fatigue properties of epoxy composites through electrospun nanofiber reinforcement. Finally, it presents a perspective to gain headways in nanofiber reinforced FRPC's research through a variety of processing and material variables.

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“…Once, these nanofibers applied directly onto the fabric surface, the arisen problems with the use of nanomaterials such as increased resin viscosity and inhomogeneous dispersion would be of concern. [31]. In addition, entangled nanofibers make a positive contribution on the interlaminar fracture resistance much like hoops and loops in Velcro while showing notable enhancement in crack deflection and crack bridging [26].…”

Section: Introductionmentioning

confidence: 99%

Mixed Mode delamination in carbon nanotube/nanofiber interlayered composites

Kaynan

Atescan

Özden-Yenigün

et al. 2018

Composites Part B: Engineering

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Laminated composites mostly suffer from layer separation and/or delamination, which may affect the stiffness, strength and lifetime of structures. In this study, we aim to produce micronscale thin carbon nanotubes (CNTs) reinforced adhesive nanofibrous interleaves and to explore their effectiveness when incorporated into structural composites. Neat polyvinyl butyral (PVB) and solutions containing low fractions of CNTs from 0.5 to 2 wt.% were electrospun directly onto carbon fiber prepregs. These interlayered laminates were cured above the glass transition temperature (Tg) of PVB to achieve strong interlaminar binding and also to resist crack reinitiation. The effect of CNTs presence and their mass fractions both on total Mixed-Mode I+II fracture toughness (GC) and crack length was investigated under Mixed-Mode I+II loading. Almost 2-fold increase in GC was reported in interlayered composites compared to noninterlayered laminates, associated to toughening effect of adhesive PVB/CNTs nanofibrous interlayers. Furthermore, the post-fracture analysis revealed the aid of CNTs interleaves in retarding delamination and afterward stabilization of crack propagation.

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The influence of graphene reinforced electrospun nano-interlayers on quasi-static indentation behavior of fiber-reinforced epoxy composites

Cited by 25 publications

References 41 publications

Enhancement of interlaminar fracture toughness of carbon fiber–epoxy composites using polyamide‐6,6 electrospun nanofibers

Enhancement of interlaminar fracture toughness of carbon fiber–epoxy composites using polyamide‐6,6 electrospun nanofibers

Mechanical properties of electrospun nanofiber reinforced/interleaved epoxy matrix composites—A review

Mixed Mode delamination in carbon nanotube/nanofiber interlayered composites

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