Graphene and Graphene Oxide as Nanofiller for Polymer Blends

Kouini, Benalia; Belhamdi, Hossem

doi:10.1007/978-3-030-30207-8_9

Cited by 5 publications

(4 citation statements)

References 113 publications

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“…Graphite is very crystalline and has a very intense peak (002) at 2θ = 26.40 with a d-spacing of 3.37 A representing the c-axial plane, perpendicular to the graphite hexagonal planes. 48 SEM images (Figure 4). 38,49 Furthermore, the comparison between the two diffractograms shows a decreasing peak intensity of GO, an enlargement, and a shift of the peak to lower angles (at 2θ = 11.95 ).…”

Section: Tribological Characterizationmentioning

confidence: 99%

Tribological behavior of biomedical gradeUHMWPEwith graphite‐based fillers againstEBM‐Ti6Al4V pinunder various lubricating conditions

Belhamdi

Kouini

Grasso

et al. 2022

J of Applied Polymer Sci

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In this work, the wear behavior of the mechanical coupling between the biomedical polymer ultrahigh molecular weight polyethylene (UHMWPE) and the titanium-aluminum-vanadium alloy pin (Ti4Al6V) manufactured by electron beam melting (EBM) is investigated. Pure and oxidized graphite fillers is added to the UHMWPE matrix to boost the wear resistance. The tribological test is performed in dry and under the action of various lubricating media (distilled water [DW], simulated synovial fluid [SSF], and natural bovine serum [NBS]) in order to investigate their effects on wearing. The physical-mechanical characterization results show a progressive increase in wear resistance of more than 60% in the nanocomposite (UHMWPE/GO) with the addition of paraffin oil (PO) compared to the UHMWPE and higher under NBS lubricant (more than 80%). The observed wear action is reduced in the order Dry > DW > SSF ≥ NBS, thereby lowering the debris production.

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Section: Tribological Characterizationmentioning

confidence: 99%

Tribological behavior of biomedical gradeUHMWPEwith graphite‐based fillers againstEBM‐Ti6Al4V pinunder various lubricating conditions

Belhamdi

Kouini

Grasso

et al. 2022

J of Applied Polymer Sci

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“…Moreover, these materials are suitable to be used with polymer matrices to form composites, thereby enhancing their mechanical and electrochemical properties [ 16 ]. At this juncture, the relevance of investigating graphene-based composite sensors is considered.…”

Section: Introductionmentioning

confidence: 99%

Amperometric Inkjet-Printed Thyroxine Sensor Based on Customized Graphene and Tunned Cyclodextrins as the Preconcentration Element

Ortiz-Aguayo,

Paré,

Gabriel

et al. 2024

Nanomaterials

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The determination of thyroid hormones has practical clinical significance for the diagnosis of hyperthyroidism and hypothyroidism diseases. Considering this aspect, a wide range of analytical methods for the detection of analytes, including immunoassay, chemiluminescence, mass spectroscopy and high-performance liquid chromatography, among others, has been developed. This type of analysis provides feasible results. Nevertheless, it requires qualified staff, special facilities and is time-consuming. For this reason, this paper relies on the fabrication of an electrochemical device developed with inkjet printing technology for the free detection of Thyroxine (T4). To manufacture our electrochemical device, several aspects were considered from the use of materials that amplify electrical signals, to finding a supramolecular scaffold that possess affinity towards the target analyte and the need of preconcentrating the analyte on the electrode’s surface. For this task, printed devices were modified with a hybrid nanomaterial consisting of reduced graphene oxide (rGO) tuned with Au nanoparticles (Au–NPs) and an entrapment agent and different thiolated cyclodextrins (x–CD-SH) as carrying agents. Analytes were preconcentrated via supramolecular chemistry due to the formation of an inclusion complex between the cyclodextrin and hormones. Morphological and electrochemical characterization of the final device was carried out to ensure the proper workability of the electrode, achieving excellent response, sensitivity and limit of detection (LOD).

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“…Materials like zero-dimensional (0D) nanoparticles, one-dimensional (1D) nanotubes, and two-dimensional (2D) layered materials are used as nanofillers [7]. Graphene oxide is a two-dimensional material used as a nanofiller in polymers to enhance mechanical and thermal properties [8]. Graphene oxide is a hydrophilic material and is easy to modify due to oxygen functional groups as compared to graphene [9].…”

Section: Introductionmentioning

confidence: 99%

Synthesis of Graphene Oxide/ Poly(Vinyl Alcohol) Composite and Investigation of Graphene Oxide Effect on Diameter and Pore Size of Poly(Vinyl Alcohol) Nanofibers

Abdullah

Anwar

Haq

et al. 2023

JNanoR

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The ultrafine fibers of Poly Vinyl Alcohol (PVA) /Graphene Oxide (GO) composite were prepared by using a homemade electrospinning set-up at 12.5 kV and 12 cm with different concentrations of GO (1g/L, 0.75g/L, and 0.5g/L) in PVA. The effect of GO concentrations in 10% PVA solution on the diameter of fibers was investigated. Fourier Transform Infrared (FTIR) Spectroscopy was used to analyze the functional groups. Ultraviolet (UV)-visible spectra of GO suspension showed the absorption peak at 232 nm. The morphology of the nanofibers was analyzed by Scanning Electron Microscopy (SEM). The X-ray diffraction (XRD) technique was used to analyze the crystalline nature of this material. The diameter of nanofibers decreased with improved crystallinity, thus, increasing the concentration of GO in PVA.

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Graphene and Graphene Oxide as Nanofiller for Polymer Blends

Cited by 5 publications

References 113 publications

Tribological behavior of biomedical gradeUHMWPEwith graphite‐based fillers againstEBM‐Ti6Al4V pinunder various lubricating conditions

Tribological behavior of biomedical gradeUHMWPEwith graphite‐based fillers againstEBM‐Ti6Al4V pinunder various lubricating conditions

Amperometric Inkjet-Printed Thyroxine Sensor Based on Customized Graphene and Tunned Cyclodextrins as the Preconcentration Element

Synthesis of Graphene Oxide/ Poly(Vinyl Alcohol) Composite and Investigation of Graphene Oxide Effect on Diameter and Pore Size of Poly(Vinyl Alcohol) Nanofibers

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