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Synthesis and characterization of nanocomposites films with graphene oxide and reduced graphene oxide nanosheets

Chinese journal of physics (Taipei), 2017-04, Vol.55 (2), p.412-422 [Peer Reviewed Journal]

2017 The Physical Society of the Republic of China (Taiwan) ;Distributed under a Creative Commons Attribution 4.0 International License ;ISSN: 0577-9073 ;DOI: 10.1016/j.cjph.2016.12.012

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  • Title:
    Synthesis and characterization of nanocomposites films with graphene oxide and reduced graphene oxide nanosheets
  • Author: Goumri, Meryem ; Poilâne, Christophe ; Ruterana, Pierre ; Doudou, Bessem Ben ; Wéry, Jany ; Bakour, Anass ; Baitoul, Mimouna
  • Subjects: Composite materials ; Condensed Matter ; Graphene ; Materials Science ; Physics ; Poly (vinyl alcohol) ; Thermal and mechanical properties
  • Is Part Of: Chinese journal of physics (Taipei), 2017-04, Vol.55 (2), p.412-422
  • Description: •Stable dispersion and alignment of graphene oxide nanolayers in PVA were achieved.•Efficient load transfer is found between the nanofillers GO and matrix PVA via strong hydrogen bonding.•The mechanical properties of the GO-based nanocomposite are improved.•The excellent agreement between the experimental tensile modulus data and the values predicted by the theoretical models.•The tunable thermal properties of PVA nanocomposites were proved. Graphene oxide (GO) and reduced graphene oxide (CRGO), as a graphene derivatives, possess unique properties and a high aspect ratio, indicating great potential in nanocomposite fields. The present work reports the fabrication of the nanocomposite films by a simple and environmentally friendly process using aqueous solution and optimized time sonication for better exfoliation of the graphene sheets within Poly(Vinyl alcohol) (PVA) as matrix. The films were characterized using high-resolution TEM (HRTEM), X-ray diffraction (XRD), Microtensile testing, Differential scanning calorimetry (DSC) and Thermogravimetric analysis (TGA). The TEM images revealed a successfully exfoliation of the GO/CRGO nanosheets. XRD combined with TGA and DSC measurements showed an improvement in the thermal stability and tunable thermal properties. In addition, the Young's modulus and tensile yield strength of the composite films containing 1wt% GO were obtained to be 4.92GPa and 66MPa respectively. These excellent reinforcement effects were achieved by the strong interaction between the components.
  • Publisher: Elsevier B.V
  • Language: English
  • Identifier: ISSN: 0577-9073
    DOI: 10.1016/j.cjph.2016.12.012
  • Source: Alma/SFX Local Collection
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