Effect of graphene oxide/graphitic nanofiber nanohybrids on interfacial properties and fracture toughness of carbon fibers-reinforced epoxy matrix composites

Kim, Seong-Hwang; Park, Soo‐Jin

doi:10.1016/j.compositesb.2021.109387

Cited by 47 publications

(13 citation statements)

References 82 publications

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“…The GO foils were assembled on a copper holder and placed at a vacuum condition of about 10 6 mbar in the implantation chamber of the ATRI MTF STU ion-beam laboratory [ 37 ] using the 6 MV Tandetron accelerator. The sample holder was maintained at room temperature and the beam incidence was at 7° with respect to the sample surface normal.…”

Section: Methodsmentioning

confidence: 99%

Compositional and Structural Modifications by Ion Beam in Graphene Oxide for Radiation Detection Studies

Cutroneo

Torrisi

Silipigni

et al. 2022

IJMS

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In the present study, graphene oxide foils 10 μm thick have been irradiated in vacuum using same charge state (one charge state) ions, such as protons, helium and oxygen ions, at the same energies (3 MeV) and fluences (from 5 × 1011 ion/cm2 to 5 × 1014 ion/cm2). The structural changes generated by the ion energy deposition and investigated by X-ray diffraction have suggested the generation of new phases, as reduced GO, GO quantum dots and graphitic nanofibers, carbon nanotubes, amorphous carbon and stacked-cup carbon nanofibers. Further analyses, based on Rutherford Backscattering Spectrometry and Elastic Recoil Detection Analysis, have indicated a reduction of GO connected to the atomic number of implanted ions. The morphological changes in the ion irradiated GO foils have been monitored by Transmission Electron, Atomic Force and Scanning Electron microscopies. The present study aims to better structurally, compositionally and morphologically characterize the GO foils irradiated by different ions at the same conditions and at very low ion fluencies to validate the use of GO for radiation detection and propose it as a promising dosimeter. It has been observed that GO quantum dots are produced on the GO foil when it is irradiated by proton, helium and oxygen ions and their number increases with the atomic number of beam gaseous ion.

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Section: Methodsmentioning

confidence: 99%

Compositional and Structural Modifications by Ion Beam in Graphene Oxide for Radiation Detection Studies

Cutroneo

Torrisi

Silipigni

et al. 2022

IJMS

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“…A strong adhesion at the interfacial and interlaminar regions in carbon fiber (CF)-reinforced polymers (CFRPs) is key to maintaining an efficient load transfer between the fiber and matrix and enhancing interfacial properties, − interlaminar strength, and delamination resistance, − and final strength . To achieve this, introducing nanomaterials (NMs) onto the surface of reinforcing fibers has been widely practiced to improve the interfacial properties of polymer composites. − The NMs are integrated onto the fiber surface by using several techniques including electrophoretic deposition, ,,,, dip/immersion coating on fibers, ,, dispersion in the sizing agent, , grafting the fiber surface, and layer-by-layer assemblies . Among these approaches, the dip/immersion coating is a simple and scalable technique, which enables the physical absorption of NMs on reinforcing fibers. , …”

Section: Introductionmentioning

confidence: 99%

Cellulose Nanocrystal-Enabled Tailoring of the Interface in Carbon Nanotube- and Graphene Nanoplatelet-Carbon Fiber Polymer Composites: Implications for Structural Applications

Kaynan

Pérez

Asadi

2022

ACS Appl. Nano Mater.

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Cellulose nanocrystals (CNCs) enable the effective coating of carbon fibers (CFs) with pristine carbon nanotubes (CNTs) and graphene nanoplatelets (GnPs). Herein, we articulate the mechanisms that form the interface of CNC-bonded CNT and CNC-bonded GnP-CF reinforced polymer (CFRP) composites that are suitable for structural applications. We show that CNCs provide a suitable platform to engineer the interface of hybrid composites. We demonstrate that the hybrid nanomaterials, i.e., CNC and CNT/GnP, alter the chemical composition of the interface and its properties, and despite the similar elemental composition of the CNT and GnP, the mechanical properties of the produced composites differ. Our results show that the presence of CNC–CNT and CNC–GnP creates a 4 μm interfacial region that leads to a 200 and 145% increase in interfacial shear strength and a 46 and 28% enhancement in interlaminar shear strength, respectively. Furthermore, density functional theory calculations show that the binding energy between the CNC–CNT and CF sizing agent is 14% higher than that of CNC–GnP underlining the effect of chemical and physical interactions in the observed difference in mechanical properties. The understanding gained from this study highlights a path forward bottom-up manufacturing of hybrid composites with an engineered microstructure and properties from the molecular level and nanoscale to higher scales.

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“…Fiber reinforced epoxy resin composites, such as carbon fiber [1,2], natural fiber [3][4][5], and glass fiber [6,7] composite materials, have been extensively employed in a wide range of applications such as aerospace, sports sector, civil construction, and automotive fields due to their superior strength to weight, high thermal stability, excellent structural design, and corrosion resistance. However, in the case of carbon fiber reinforced composites, the surface properties of carbon fibers such as smoothness, surface inertness, and poor wettability make their incorporation into an epoxy matrix difficult and result in poor interfacial adhesion [8,9]. Meanwhile, because of the brittle texture, the cured epoxy resin is hard to suppress the generation and expansion of microcracks, resulting in poor impact resistance [10,11].…”

Section: Introductionmentioning

confidence: 99%

Synergistically Improving Mechanical and Interfacial Properties of Epoxy Resin and CFRP Composites by Introducing Graphene Oxide

Cao

Zhi

Yang

et al. 2022

Advances in Polymer Technology

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In this study, graphene oxide (GO) was employed as nanoscale reinforcement for the development of high-performance carbon fiber reinforced plastic (CFRP) composites. Initially, epoxy resin was modified by incorporating GO with different weight proportion from 0.05 to 0.6 wt.%. Then the unidirectional CFRP composites were prepared with the modified epoxy resin by winding and compression molding technique. The optimized GO-CFRP composites with GO content of 0.1 wt.% present tensile strength of 2756 MPa and monofilament interfacial shear strength of 29.06 MPa, respectively, which are 14.4% and 12.5% higher than the corresponding values of the pristine CFRP composites. To intuitively observe the fracture process of the CFRP composites, the digital image correlation system was employed. It is verified that the moderate addition of GO can improve the stress concentration of the CFRP composites during the deformation process. In addition, the reinforcing mechanism is investigated by analyzing the fracture surface of the modified epoxy resin and the CFRP composites. The results indicate that GO can make the cracks deflect or bifurcate along with the epoxy resin which closes to graphene, resulting in synergistically improved mechanical and interfacial properties of the GO-modified CFRP composites.

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Effect of graphene oxide/graphitic nanofiber nanohybrids on interfacial properties and fracture toughness of carbon fibers-reinforced epoxy matrix composites

Cited by 47 publications

References 82 publications

Compositional and Structural Modifications by Ion Beam in Graphene Oxide for Radiation Detection Studies

Compositional and Structural Modifications by Ion Beam in Graphene Oxide for Radiation Detection Studies

Cellulose Nanocrystal-Enabled Tailoring of the Interface in Carbon Nanotube- and Graphene Nanoplatelet-Carbon Fiber Polymer Composites: Implications for Structural Applications

Synergistically Improving Mechanical and Interfacial Properties of Epoxy Resin and CFRP Composites by Introducing Graphene Oxide

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