A comparison study on mechanical properties of polymer composites reinforced by carbon nanotubes and graphene sheet

Li, Yun Long; Wang, Shijie; Wang, Quan; Xing, Malcolm

doi:10.1016/j.compositesb.2017.09.024

Cited by 160 publications

(62 citation statements)

References 43 publications

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“…22 The outstanding potential of carbon nanotubes as reinforcement for polymers has been realized. [265][266][267][268][269][270] The mechanical properties of polymer composite materials can be signicantly improved by using carbon nanotubes as a ller. Carbon nanotubes have been widely utilized as a ller to reinforce both thermoset polymers [271][272][273][274] and thermoplastic polymers.…”

Section: Mechanical Propertiesmentioning

confidence: 99%

A review of the interfacial characteristics of polymer nanocomposites containing carbon nanotubes

et al. 2018

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Section: Mechanical Propertiesmentioning

confidence: 99%

A review of the interfacial characteristics of polymer nanocomposites containing carbon nanotubes

et al. 2018

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“…Hydrophilic polymers such as polyacrylamide (PAM) 19 and polyvinylpyrrolidone (PVP) 20 have been introduced into PVA hydrogels to improve their water-holding properties; however, these modified hydrogels do not offer sufficient stiffness for load-bearing cartilage applications. On the other hand, incorporating graphene into poly(ɛ-caprolactone) (PCL) is known to enhance the mechanical properties of the polymer and improve its osteogenic capability 21,22 . The exceptional photothermal conversion ability of graphene under NIR irradiation can be used for promising applications, such as photothermal therapy in cancer treatments 23 .…”

Section: Introductionmentioning

confidence: 99%

Multifunctional load-bearing hybrid hydrogel with combined drug release and photothermal conversion functions

et al. 2020

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The inability of damaged load-bearing cartilage to regenerate and self-repair remains a long-standing challenge in clinical settings. In the past, the use of PVA hydrogels as cartilage replacements has been explored; however, both pristine and annealed PVA are not ideal for load-bearing cartilage applications, and new materials with improved properties are highly desirable. In this work, we developed a novel hybrid hydrogel system consisting of glycerolmodified PVA hydrogel reinforced by a 3D printed PCL-graphene composite scaffold. The composition of the hydrogel within the hybrid material was optimized to achieve high water retention and enhanced stiffness. The hybrid hydrogel formed by reinforcement with a 3D printed PCL-graphene scaffold with optimized architecture demonstrated desirable mechanical properties (stiffness, toughness, and tribological properties) matching those of natural loadbearing cartilage. Our novel hydrogel system has also been designed to provide drug release and on-demand photothermal conversion functions and at the same time offers excellent biocompatibility with low cell adhesion. These promising properties may allow our unique hybrid hydrogel system to be used for potential applications, such as load-bearing cartilage repair/replacement, as well as targeting certain challenging clinical conditions, such as the treatment of severe arthritis.

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“…[11][12][13][14] Theoretical and experimental investigations confirm that the nanofiller-polymer bonding is very important for the tensile properties of the nanocomposite materials like Young's modulus, yield strength, UTS, shear modulus, bulk modulus, etc. [15][16][17] The modifier effect depends on their size, shape, and interaction energy between nanofillers and polymers. [18,19] Arbaoui et al reviewed the mechanical and thermal properties of alumina-epoxy, spinel-epoxy, and graphite-epoxy.…”

Section: Introductionmentioning

confidence: 99%

Synergistic effect between CuCr₂O₄ nanoparticles and plasticizer on mechanical properties of EP/PU/CuCr₂O₄ nanocomposites: Experimental approach and molecular dynamics simulation

Sarafrazi

Ghasemi

Hamadanian

2020

J of Applied Polymer Sci

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In this research, copper chromite (CuCr2O4) nanoparticles (NPs) were synthesized by the sol–gel auto‐combustion method. The effects of CuCr2O4 NPs and polyurethane (PU) on the tensile strength of the epoxy (EP) resin were studied by considering different weight percentages (wt%). The response surface methodology (RSM) coupled with central composite design (CCD) (RSM/CCD) methods were also used to optimize the Young's modulus, yield strength, and ultimate tensile strength of the EP/PU/CuCr2O4 nanocomposites. The composition structure and morphology of the EP/PU/CuCr2O4 nanocomposites were determined using the Fourier Transform Infrared spectroscopy (FT‐IR), X‐ray diffraction, UV–vis diffuse reflection, Scanning Electron Microscopy, X‐ray energy dispersive spectroscopy, and thermogravimetric analysis. It was also shown that the RSM/CCD methods could be utilized effectively to find the optimum process variables in the tensile test of the EP/PU/CuCr2O4 nanocomposites. Moreover, the tensile test revealed that the presence of the CuCr2O4 NPs in the EP/PU matrix improved the mechanical properties. Best results were obtained with the 0.76 wt% of the CuCr2O4 NPs and the 2.6 wt% PU in the epoxy resin. The molecular dynamic simulation was used to illustrate the effect of the NPs on the interaction energy and mechanical properties of this nanocomposite. The calculated interaction energy for the EP/PU/CuCr2O4 nanocomposites was −437.96 Kcal/mol. The results showed that Young's modulus had relative agreement with the experimental results.

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A comparison study on mechanical properties of polymer composites reinforced by carbon nanotubes and graphene sheet

Cited by 160 publications

References 43 publications

A review of the interfacial characteristics of polymer nanocomposites containing carbon nanotubes

A review of the interfacial characteristics of polymer nanocomposites containing carbon nanotubes

Multifunctional load-bearing hybrid hydrogel with combined drug release and photothermal conversion functions

Synergistic effect between CuCr₂O₄ nanoparticles and plasticizer on mechanical properties of EP/PU/CuCr₂O₄ nanocomposites: Experimental approach and molecular dynamics simulation

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A comparison study on mechanical properties of polymer composites reinforced by carbon nanotubes and graphene sheet

Cited by 160 publications

References 43 publications

A review of the interfacial characteristics of polymer nanocomposites containing carbon nanotubes

A review of the interfacial characteristics of polymer nanocomposites containing carbon nanotubes

Multifunctional load-bearing hybrid hydrogel with combined drug release and photothermal conversion functions

Synergistic effect between CuCr2O4 nanoparticles and plasticizer on mechanical properties of EP/PU/CuCr2O4 nanocomposites: Experimental approach and molecular dynamics simulation

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Synergistic effect between CuCr₂O₄ nanoparticles and plasticizer on mechanical properties of EP/PU/CuCr₂O₄ nanocomposites: Experimental approach and molecular dynamics simulation