Processing–Morphology–Property Relationships and Composite Theory Analysis of Reduced Graphene Oxide/Natural Rubber Nanocomposites

Potts, Jeffrey R.; Shankar, Om; Du, Ling; Ruoff, Rodney S.

doi:10.1021/ma300706k

Cited by 327 publications

(257 citation statements)

References 49 publications

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“…The layers of graphene-based materials are expected like in layered silicates, to be separated from each other in water and to be mixed uniformly with the rubber latex particles. The latex mixing and co-coagulation process has been applied by Zhan et al [25] then by Potts et al [26] for the preparation of reduced graphene oxide/natural rubber nanocomposites.…”

Section: Manufacturing Techniques Of Rubber Nanocompositesmentioning

confidence: 99%

Mechanical and Electrical Properties of Elastomer Nanocomposites Based on Different Carbon Nanomaterials

Bokobza¹

2017

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Carbon nanostructures including carbon black, carbon nanotubes, graphite or graphene have attracted a tremendous interest as fillers for elastomeric compounds. The preparation methods of nanocomposites that have a strong impact on the state of filler dispersion and thus on the properties of the resulting composites, are briefly described. At a same filler loading, considerable improvement in stiffness is imparted to the host polymeric matrix by the carbon nanomaterials with regard to that provided by the conventional carbon black particles. It is mainly attributed to the high aspect ratio of the nanostructures rather than to strong polymer-filler interactions. The orienting capability of the anisotropic fillers under strain as well the formation of a filler network, have to be taken into account to explain the high level of reinforcements. A comparison of the efficiency of the different carbon nanostructures is carried out through their mechanical and electrical properties but no clear picture can be obtained since the composite properties are strongly affected by the state of filler dispersion.

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Section: Manufacturing Techniques Of Rubber Nanocompositesmentioning

confidence: 99%

Mechanical and Electrical Properties of Elastomer Nanocomposites Based on Different Carbon Nanomaterials

Bokobza¹

2017

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“…In this study, only the version for unidirectional alignment is considered since the microstructural analysis demonstrated that reinforcements are preferentially aligned [6]. Another analytical model, by Tandon and Weng (TW), which was derived from the MT method [17], is also used in the literature for calculation of the Young's modulus of graphenereinforced nanocomposites [9,18,19]. Hui and Shia (HS) obtained simple closed-form expressions based on the TW method [20]; their method can be used to implement the MT approach in prediction of the elasticity modulus of graphene-nanocomposites [21].…”

Section: Introductionmentioning

confidence: 99%

“…stacked, intercalated and exfoliated [18]. Graphene or GO flakes with a stacked morphology are characterized by presence of more than several sheets.…”

Section: Introductionmentioning

confidence: 99%

Effect of morphological state of graphene on mechanical properties of nanocomposites

et al. 2016

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In the last decade, graphene has emerged as one of the best-performing reinforcement materials for nanocomposites. Incorporation of graphene into polymer results in a nanocomposite with a new microstructure responsible for its enhanced features. A morphological state of graphene flakes is one of the factors that govern formation of microstructure. Studies showed that graphene-oxide (GO) flakes can be found either as fully exfoliated or intercalated in polymerbased nanocomposites. While traditional parameters are commonly taken into consideration in theoretical assessment of properties of composites by means of micromechanical models, the morphological state is often ignored. This research aims to investigate the effect of morphological state of GO flakes on stiffness of nanocomposites with widely used micromechanical models, e.g., rule of mixtures, Hui-Shia and Halpin-Tsai. Pure sodium alginate and nanocomposites on its basis reinforced with 1.0 and 2.5 wt% GO were used in the study. Parameters required for modelling were quantified with microstructural characterisation. Micromechanical models were adapted to account for the morphological state of intercalation observed in the characterisation study. Tensile experiments were employed to assess the adopted models, and the effect matrix stiffness, GO thickness, spacing of intercalates as well as the Poisson's ratio and stiffness of inter-flake polymer layers was studied.

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“…Therefore, a method to inhibit the surface oxidation is urgently required. Graphene is capable of both scavenging free-radicals [15][16][17][18] and can serving as gas barriers [19][20][21][22][23], these dual effects make graphene be effective in improving oxidation stability of Bi 2 Se 3 . In this study, we fabricated high-quality G-Bi 2 Se 3 -G heterostructure via CVD.…”

Section: Introductionmentioning

confidence: 99%

Fabrication of Graphene/Bi2Se3/Graphene heterostructure without the surface oxidation of Bi2Se3

Zhang¹,

Yang²,

Liu³

et al. 2015

Front Nanosci Nanotech

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Graphene/Bi 2 Se 3 /Graphene (G/Bi 2 Se 3 /G) sandwich hybrids were fabricated via chemical vapor deposition. The medium graphene layer is used to synthesize the high-quality Bi 2 Se 3 , benefitting from the smaller lattice mismatch between graphene and Bi 2 Se 3 . The covering graphene layer is designed to inhibit the surface oxidation of Bi 2 Se 3 layers which are easily changed to BiO x in the atmosphere. The Raman spectroscopy, scanning electron microscopy and X-ray diffraction confirm the high-quality and uniform Bi 2 Se 3 film. The Raman spectroscopy and X-ray diffraction investigates antioxidant ability of the G/Bi 2 Se 3 /G structure. We conclude that the graphene can effectively improve the crystal quality of Bi 2 Se 3 and inhibit the surface oxidation of it. Graphical abstractThe method to improve the crystal quality and inhibit the surface oxidation is important for the application of the Bi 2 Se 3 films. Graphene/Bi 2 Se 3 /Graphene (G/ Bi 2 Se 3 /G) sandwich hybrids were fabricated here via chemical vapor deposition. The medium graphene layer is used to synthesize the high-quality Bi 2 Se 3 , benefitting from the smaller lattice mismatch between graphene and Bi 2 Se 3 . The covering graphene layer is designed to inhibit the surface oxidation of Bi 2 Se 3 layers which are easily changed to BiOx in the atmosphere. We conclude that the graphene can effectively improve the crystal quality of Bi 2 Se 3 and inhibit the surface oxidation of it.

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Processing–Morphology–Property Relationships and Composite Theory Analysis of Reduced Graphene Oxide/Natural Rubber Nanocomposites

Cited by 327 publications

References 49 publications

Mechanical and Electrical Properties of Elastomer Nanocomposites Based on Different Carbon Nanomaterials

Mechanical and Electrical Properties of Elastomer Nanocomposites Based on Different Carbon Nanomaterials

Effect of morphological state of graphene on mechanical properties of nanocomposites

Fabrication of Graphene/Bi2Se3/Graphene heterostructure without the surface oxidation of Bi2Se3

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