Influence of graphene nanoplatelets on modes I, II and III interlaminar fracture toughness of fiber-reinforced polymer composites

Ahmadi-Moghadam, B.; Taheri‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬, Farid

doi:10.1016/j.engfracmech.2015.06.026

Cited by 59 publications

(27 citation statements)

References 15 publications

(20 reference statements)

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“…The tensile strength increased 16% compared to the neat resin when APTES was used, and ductility was also improved with the GPTMS treatment. Ahmadi‐Moghadan et al . treated graphene nanoplatelets with GPTMS with a positive effect on elastic modulus (15% increase) and fracture toughness compared to the epoxy resin.…”

Section: Introductionmentioning

confidence: 99%

Mechanical and dynamic‐mechanical properties of silane‐treated graphite nanoplatelet/epoxy composites

Lavoratti

Zattera

Amico

2018

J of Applied Polymer Sci

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Thermoset resins are widely used for composite applications due to their excellent mechanical properties. To further enhance their performance, nanofillers such as graphite nanoplatelets (GrNP) have been used, and extra improvement may arrive from surface treating these fillers. This study aims to evaluate the influence of GrNP content and treatment with (3‐glycidyloxypropyl)trimethoxysilane and (3‐aminopropyl)triethoxysilane on curing behavior and mechanical and dynamic mechanical properties of GrNP/epoxy composites. Composites reinforced with 0.25 wt % GrNP displayed increased tensile strength by 11.8% compared to the neat resin. Addition of 0.5 wt % GrNP increased the glass transition temperature in 10°C compared to the neat polymer. Silane treated fillers showed an improvement in tensile strength and dynamic‐mechanical properties compared to the neat resin and non‐treated GrNP/epoxy composites at similar filler content. © 2018 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2018, 135, 46724.

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Section: Introductionmentioning

confidence: 99%

Mechanical and dynamic‐mechanical properties of silane‐treated graphite nanoplatelet/epoxy composites

Lavoratti

Zattera

Amico

2018

J of Applied Polymer Sci

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“…This suggests that the growth of hackles in the rEGO‐filled specimens is delayed, thus, the coalescence of cracks and the failure of the specimen. The efficiency of GNPs for improving the fracture properties of composites was found high in the opening mode of fracture than in in‐plane shear fracture mode . Similar to GNPs, the efficiency of rEGO fillers for improving the fracture properties is also observed high in Mode I fracture.…”

Section: Resultsmentioning

confidence: 76%

“…The improvement in the results, here, was attributed to the improved mechanisms such as crack bridging, crack deflection, and nanofillers pull out. In another case, stronger interfacial bonding between GNPs and resin resulted in significant improvements in the onset G Ic values . Some of the researchers have studied CNTs and nanoclay as the fillers for improving the G Ic values of glass fiber/epoxy composites, to some extent; they were successful in achieving the improved properties .…”

Section: Resultsmentioning

confidence: 99%

“…Introducing GO and Carbon black reinforced epoxy interleaves between the interfaces of Carbon FRC sublaminates has been proposed by Ning et al , where they found locally distributed nanofillers exhibiting strong interfacial adhesion between epoxy resin and Carbon fibers, demonstrating highest Mode I and Mode II fracture toughness and resistance values of laminates. The potential capability of graphene nanoplatelets (GNPs) has been investigated for improving the interlaminar fracture toughness of E‐glass fiber/epoxy composites . It was observed that improved surface energy of functionalized‐GNPs increased the interfacial bond strength of GNPs/resin, which resulted in higher properties of composites in all modes of fracture.…”

Section: Introductionmentioning

confidence: 99%

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Mode I and Mode II interlaminar fracture behavior of E‐glass fiber reinforced epoxy composites modified with reduced exfoliated graphite oxide

et al. 2018

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In this article, Mode I and Mode II interlaminar fracture toughness, interlaminar shear strength, flexural strength and the flexural modulus of continuous unidirectional E‐glass fiber reinforced epoxy composites modified with three different graphite oxide (GO) fillers were investigated. GO was prepared through modified Hummers' method followed by thermal exfoliation at 200°C to produce exfoliated GO (EGO). Further, EGO was chemically reduced to result in reduced EGO (rEGO). Incorporation of GO and EGO fillers exhibited significant improvement in the mechanical properties of the composites. Remarkable enhancement in mechanical properties was observed with rEGO fillers, where Mode I and Mode II fracture toughness values of composites were increased by 65% (0.5 wt%) and 54% (0.25 wt%), respectively. Studies on nanofillers distribution in the matrix resin and the examination of fracture surfaces of specimens were carried out with field emission scanning electron microscopy. POLYM. COMPOS., 39:E2506–E2518, 2018. © 2018 Society of Plastics Engineers

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“…during service, storage, and routine maintenance. 18,19 This damage is mainly in the form of delamination failure and matrix microcracking. In particular, invisible delamination may occur in the interlayer resin-rich region, which results in a drastic drop in the load-carrying capacity of the composite structure; 20,21 this is the key failure mode limiting the service life of a composite.…”

Section: 17mentioning

confidence: 99%

Simultaneous enhancement of electrical conductivity and interlaminar fracture toughness of carbon fiber/epoxy composites using plasma-treated conductive thermoplastic film interleaves

Xiang

Wang

et al. 2018

RSC Adv.

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Multiwalled carbon nanotube (MWCNT)-doped polyamide 12 (PA12) films with various nanofiller loadings were prepared via a solution casting method to simultaneously improve the electrical conductivity and fracture toughness of carbon fiber/epoxy (CF/EP) composites. The films were interleaved between CF/EP prepreg layers and melted to bond with the matrix during the curing process. To improve the interfacial compatibility and adhesion between the conductive thermoplastic films (CTFs) and the epoxy matrix, the CTFs were perforated and then subjected to a low temperature oxygen plasma treatment before interleaving. Fourier transform infrared (FTIR) spectra results confirm that oxygen-containing functional groups were introduced on the surface of the CTFs, and experimental results demonstrate that the electrical conductivity of the laminates was significantly improved. There was a 2-fold increase in the transverse direction electrical conductivity of the laminate with 0.7 wt% MWCNT loading and a 21-fold increase in the through-thickness direction. Double cantilever beam (DCB) tests demonstrated that the Mode-I fracture toughness (G IC ) and resistance (G IR ) of the same laminates significantly increased by 59% and 113%, respectively. Enhancements of both interlaminar fracture toughness and electrical conductivity are mainly attributed to the strong interfacial adhesion achieved after plasma treatment and to the bridging effect of the carbon nanotubes.

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Influence of graphene nanoplatelets on modes I, II and III interlaminar fracture toughness of fiber-reinforced polymer composites

Cited by 59 publications

References 15 publications

Mechanical and dynamic‐mechanical properties of silane‐treated graphite nanoplatelet/epoxy composites

Mechanical and dynamic‐mechanical properties of silane‐treated graphite nanoplatelet/epoxy composites

Mode I and Mode II interlaminar fracture behavior of E‐glass fiber reinforced epoxy composites modified with reduced exfoliated graphite oxide

Simultaneous enhancement of electrical conductivity and interlaminar fracture toughness of carbon fiber/epoxy composites using plasma-treated conductive thermoplastic film interleaves

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