Production of graphene nanoplate/polyetheretherketone composites by semi-industrial melt-compounding

Alvaredo-Atienza, A; Fernandéz‐Blázquez, Juan P.; Castell, Pere; Villoria, Roberto Guzmán de

doi:10.1016/j.heliyon.2020.e03740

Cited by 16 publications

(6 citation statements)

References 46 publications

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“…When the content of graphene is more than 5 wt %, the tensile modulus, ultimate tensile strength, and fracture strain of the nanocomposites remain steady. Similar increases and decreases have been reported with graphene-PEEK nanocomposites 40,41 and other polymer nanocomposites. 42 Compared with the mechanical properties of PEEK, the tensile modulus of the GNP-5/PEEK nanocomposite is improved by 12.8%, and its ultimate tensile strength and fracture strain are weakened by 33 and 86.5%, respectively.…”

Section: Mechanical Properties Of Peek and Gnps/peeksupporting

confidence: 86%

“…The tensile modulus, ultimate tensile strength, and fracture strain of PEEK are 3.99 GPa, 113 MPa, and 21.4%, respectively, which makes an agreement with previous studies. 40,41 It can also be found that as the content of graphene increases from 0 to 5 wt %, the tensile modulus of the nanocomposites gradually increases, while the ultimate tensile strength and fracture strain of nanocomposites significantly decrease. When the content of graphene is more than 5 wt %, the tensile modulus, ultimate tensile strength, and fracture strain of the nanocomposites remain steady.…”

Section: Mechanical Properties Of Peek and Gnps/peekmentioning

confidence: 94%

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Mechanical Properties of Solution-Blended Graphene Nanoplatelets/Polyether-Ether-Ketone Nanocomposites

Zhang

Yuan

et al. 2021

J. Phys. Chem. B

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A lightweight composite with outstanding damping effects and impact resistance is significant for the design of functional structures in advanced equipment, such as aircraft and space vehicles. In this paper, the mechanical properties of solutionblended graphene nanoplatelets (GNPs)/polyether-ether-ketone (PEEK) nanocomposites were characterized by both experimental and numerical methods. It can be found that the layer number and packing configuration of graphene layers are critical to the efficiency of energy dissipation in the composite, while a pack of six-layer graphene and the perpendicular arrangement to the shockwave direction provide the most outstanding energy dissipation ability. The reflection of shockwave caused by graphene reinforcements in the nanocomposite was found to be the dominating reason for the enhanced energy dissipation effect. Physical mechanisms of energy dissipation are investigated by a molecular modeling method to provide insights into the cross-scale design of graphene-reinforced nanocomposites as structural materials.

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Section: Mechanical Properties Of Peek and Gnps/peeksupporting

confidence: 86%

Section: Mechanical Properties Of Peek and Gnps/peekmentioning

confidence: 94%

Mechanical Properties of Solution-Blended Graphene Nanoplatelets/Polyether-Ether-Ketone Nanocomposites

Zhang

Yuan

et al. 2021

J. Phys. Chem. B

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“…8. It is clear from Table 2 that incorporation of EG into PEEK does not significantly affect the glass transition temperature of the composites 63 …”

Section: Resultsmentioning

confidence: 97%

High‐performance and cost‐effective melt blended poly(ether ether ketone)/expanded graphite composites for mass production of antistatic materials

Mokhtari

Archer

Bloomfield

et al. 2021

Polymer International

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In this study unfunctionalized expanded graphite (EG) was incorporated into poly(ether ether ketone) (PEEK) using twin‐screw extrusion and injection moulding to manufacture cost‐effective PEEK/EG composites for mass production of high‐performance antistatic materials. Direct current electrical conductivity, morphology, rheological and thermal properties of the composites were investigated. At an EG loading of 5 vol%, the electrical conductivity exhibited an abrupt increase to 1.45 × 10−5 S m−1 which was in the required range of electrical conductivity of antistatic materials. The frequency dependence of the storage modulus of the melt containing 2 vol% EG decreased significantly at low frequencies. Viscosity did not increase much with the addition of EG in comparison with other nanofillers such as carbon nanotubes. The crystallinity of PEEK increased to 41.11% from 35.87% upon addition of 3 vol% EG. EG improved the thermal stability of PEEK by an increase in the initiation temperature of its decomposition steps. © 2021 The Authors. Polymer International published by John Wiley & Sons Ltd on behalf of Society of Industrial Chemistry.

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“…Not performed Not performed [27] In the present study, G referenced PEEK nanocomposites were produced through melt compounding and injection moulding and the effect of G loading on the properties of the resulting composites has been investigated thoroughly using a wide range of characterization techniques. The biocompatibility and tissue regeneration ability of the composites has also been evaluated in vitro and in vivo.…”

Section: Not Specifiedmentioning

confidence: 99%

“…Table 1 Recent studies on PEEK and its composite systems with graphene modification [27] In the present study, G referenced PEEK nanocomposites were produced through melt compounding and injection moulding and the effect of G loading on the properties of the resulting composites has been investigated thoroughly using a wide range of characterization techniques.…”

Section: Introductionmentioning

confidence: 99%

Graphene Reinforced Polyether Ether Ketone Nanocomposites for Bone Repair Applications

Jiang¹,

Tan²,

He³

et al. 2020

Preprint

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To improve the performance of polyether ether ketone matrix (PEEK) in hard tissue repair and replacement applications, we fabricated graphene (G) reinforced PEEK with graded G concentrations (0.1%-5%) through injection molding. The mechanical properties, surface morphology, chemical composition and thermal stability of the composites have been characterized through universal mechanical testing, scanning electron microscopy, contact-angle measurement, transmission electron microscope, X-ray photoelectron spectroscopy, X-ray diffraction and thermal analysis system. The biocompatibility has been assessed in vitro and the bone repair function of the composite implant have been assessed in vivo using a rabbit mandibular bone defect model. Mechanical testing results suggest that the composite samples have compressive moduli similar to that of the natural bone. Although addition of G into PEEK does not significantly influence the composite tensile, flexural or compressive moduli, it can significantly enhance the ductility and toughness of the material. On the other hand, all G-reinforced PEEK implants demonstrated enhanced adhesion and differentiation of rat bone marrow stromal cells (BMSCs), with 5% G-PEEK showing the highest bioactivity among all samples. The in vivo osseointegration data further revealed that 5% G-PEEK has the best effect in promoting osseointegration and bone regeneration, in both early stage and late stage bone re-growth. Study shows that our G-reinforced PEEK-based implants provides a promising strategy for enhancing the performance of future regenerative bone implants.<br>

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Production of graphene nanoplate/polyetheretherketone composites by semi-industrial melt-compounding

Cited by 16 publications

References 46 publications

Mechanical Properties of Solution-Blended Graphene Nanoplatelets/Polyether-Ether-Ketone Nanocomposites

Mechanical Properties of Solution-Blended Graphene Nanoplatelets/Polyether-Ether-Ketone Nanocomposites

High‐performance and cost‐effective melt blended poly(ether ether ketone)/expanded graphite composites for mass production of antistatic materials

Graphene Reinforced Polyether Ether Ketone Nanocomposites for Bone Repair Applications

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