Direct growth of thermally reduced graphene oxide on carbon fiber for enhanced mechanical strength

Cho, Beom-Gon; Joshi, Shalik Ram; Lee, Jaekyo; Park, Hyung Wook; Kim, Gun-Ho

doi:10.1016/j.compositesb.2020.108010

Cited by 31 publications

(11 citation statements)

References 58 publications

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“…A structural analysis of TrGO was performed using XRD and Raman spectroscopy, and the results are shown in Figure 2 . The Raman spectra of TrGO displayed three main peaks: a D-band (~1345 cm −1 ), a G-band (~1592 cm −1 ), and a broad 2D band (2300–3200 cm −1 ), consistent with previous reports [ 22 , 30 , 31 ]. It was observed that the intensity ratio of the D and G bands (I D /I G ) was ~0.65, which was significantly lower than that previously reported for rGO [ 22 , 32 ].…”

Section: Resultssupporting

confidence: 91%

“…Furthermore, it exhibits superior adhesion, due to the presence of oxygen-containing functional groups that form strong covalent bonds with the surface. This brought about a significant improvement in the interlaminar shear and flexural strength of GO [ 30 ]. These advantages of shellac-derived GO suggest its potential as a cost-effective polymer composite additive to improve the antibacterial and mechanical properties of materials.…”

Section: Introductionmentioning

confidence: 99%

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Enhanced Mechanical and Antibacterial Properties of Nanocomposites Based on Poly(vinyl Alcohol) and Biopolymer-Derived Reduced Graphene Oxide

et al. 2021

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Functionalized graphene–polymer nanocomposites have gained significant attention for their enhanced mechanical, thermal, and antibacterial properties, but the requirement of multi-step processes or hazardous reducing agents to functionalize graphene limits their current applications. Here, we present a single-step synthesis of thermally reduced graphene oxide (TrGO) based on shellac, which is a low-cost biopolymer that can be employed to produce poly(vinyl alcohol) (PVA)/TrGO nanocomposites (PVA–TrGO). The concentration of TrGO varied from 0.1 to 2.0 wt.%, and the critical concentration of homogeneous TrGO dispersion was observed to be 1.5 wt.%, below which strong interfacial molecular interactions between the TrGO and the PVA matrix resulted in improved thermal and mechanical properties. At 1.5 wt.% filler loading, the tensile strength and modulus of the PVA–TrGO nanocomposite were increased by 98.7% and 97.4%, respectively, while the storage modulus was increased by 69%. Furthermore, the nanocomposite was 96% more effective in preventing bacterial colonization relative to the neat PVA matrix. The present findings indicate that TrGO can be considered a promising material for potential applications in biomedical devices.

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Section: Resultssupporting

confidence: 91%

Section: Introductionmentioning

confidence: 99%

Enhanced Mechanical and Antibacterial Properties of Nanocomposites Based on Poly(vinyl Alcohol) and Biopolymer-Derived Reduced Graphene Oxide

et al. 2021

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“…Generally, the uniform distribution and firm binding of nanoparticles on the surface of the fibers have been regarded as the key factors for enhancing the interfacial properties. [23][24][25][26] Therefore, it is necessary to find a facile and effective way to solve the problem.…”

Section: Introductionmentioning

confidence: 99%

In situ growth of TiO₂ nanoparticles onto PBO fibers via a mussel‐inspired strategy for enhancing interfacial properties and ultraviolet resistance

Chen

et al. 2021

Polymer Composites

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In this work, to overcome the poor interfacial adhesion and ultraviolet (UV) resistance of poly(p-phenylene benzobisoxazole) (PBO) fiber simultaneously, a new hierarchical reinforcement was fabricated by in situ growing titanium dioxide (TiO 2 ) nanoparticles on the surface of the fiber using musselinspired polydopamine (PDA) as a robust reaction platform. The surface morphologies and chemical compositions of the modified fiber were measured to prove the TiO 2 binding. The interfacial shear strength of PBO fiber-reinforced epoxy resin composite had a 57.2% enhancement after TiO 2 modification, which was caused by increased surface roughness (R a ) and wettability. In addition, the thermal stability of the fiber and hygrothermal aging resistance of the composite were improved remarkably. Moreover, the compact TiO 2 coating on the surface of PBO/PDA/Ti led to excellent UV resistance.

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“…29 Besides the nano additives as microwave absorbers, fibers have been extensively incorporated into the polymeric composite foams to improve the mechanical and physical properties of a system. [30][31][32][33] Accordingly, fibers not only significantly increase tensile and compression modulus as well as strength but also control the nucleation and growth rate of cells. Indeed, the matrix-fiber interfacial areas are the proper sites for the cell nucleation due to their lower Gibb's free energy.…”

Section: Introductionmentioning

confidence: 99%

Fabricating bimodal microcellular structure in polystyrene/carbon nanotube/glass‐fiber hybrid nanocomposite foam by microwave‐assisted heating: A proof‐of‐concept study

Shahbazi

Aghvami‐Panah

Panahi‐Sarmad

et al. 2022

J of Applied Polymer Sci

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In the current study, polystyrene/carbon nanotubes/glass fiber (PS/CNT/GF) hybrid foam with a bimodal cellular-structure has been fabricated via microwave heating as a novel energy source. Microwave-assisted (MA) samples not only demonstrated the lowest density as compared to traditional methods but also represented superior compressive mechanical properties. Since the bimodal morphology has not been seen so far, the role of selective microwave heating has been thoroughly investigated from the microstructural point of view. Accordingly, the amount of receiving microwave radiations to heat up the system is controllable via the CNTs (as nucleating agents and absorbers) as well as radiation time. Moreover, 1-15 wt% fibers were incorporated to enhance mechanical performance, which led to turning uniform cellular structure to the bimodal pattern, and its cell morphological was studied thereafter. Electrical conductivity and dielectric permittivity properties have not been deprived of bimodality benefits which have been rigorously proven.

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Direct growth of thermally reduced graphene oxide on carbon fiber for enhanced mechanical strength

Cited by 31 publications

References 58 publications

Enhanced Mechanical and Antibacterial Properties of Nanocomposites Based on Poly(vinyl Alcohol) and Biopolymer-Derived Reduced Graphene Oxide

Enhanced Mechanical and Antibacterial Properties of Nanocomposites Based on Poly(vinyl Alcohol) and Biopolymer-Derived Reduced Graphene Oxide

In situ growth of TiO₂ nanoparticles onto PBO fibers via a mussel‐inspired strategy for enhancing interfacial properties and ultraviolet resistance

Fabricating bimodal microcellular structure in polystyrene/carbon nanotube/glass‐fiber hybrid nanocomposite foam by microwave‐assisted heating: A proof‐of‐concept study

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Direct growth of thermally reduced graphene oxide on carbon fiber for enhanced mechanical strength

Cited by 31 publications

References 58 publications

Enhanced Mechanical and Antibacterial Properties of Nanocomposites Based on Poly(vinyl Alcohol) and Biopolymer-Derived Reduced Graphene Oxide

Enhanced Mechanical and Antibacterial Properties of Nanocomposites Based on Poly(vinyl Alcohol) and Biopolymer-Derived Reduced Graphene Oxide

In situ growth of TiO2 nanoparticles onto PBO fibers via a mussel‐inspired strategy for enhancing interfacial properties and ultraviolet resistance

Fabricating bimodal microcellular structure in polystyrene/carbon nanotube/glass‐fiber hybrid nanocomposite foam by microwave‐assisted heating: A proof‐of‐concept study

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In situ growth of TiO₂ nanoparticles onto PBO fibers via a mussel‐inspired strategy for enhancing interfacial properties and ultraviolet resistance