Fabrication of Graphene–Polymer Nanocomposites With Higher‐Order Three‐Dimensional Architectures

Vickery, Jemma; Patil, Avinash J.; Mann, Stephen

doi:10.1002/adma.200803606

Cited by 593 publications

(416 citation statements)

References 25 publications

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“…From the dynamic mechanical analysis over the glass transition temperature (T g ) of PVA, the decrease of E 0 with temperature was effectively suppressed by the incorporation of GO, and the high E 0 was maintained within the entire temperature range (from À150 1C to 200 1C) for the PVA/GO nanocomposites. 54 These results indicate that the molecular motion of the polymer chains was restricted in the amorphous phase of PVA by the interactions between the GO nanosheets and/or PVA and GO, causing sufficient reinforcement effects. 32,[55][56][57][58][59] Furthermore, the dynamic mechanical analysis results revealed that the high E 0 value was maintained even under a high RH in the range of 15-90% at 60 1C (Figure 4b).…”

Section: Poly(vinyl Alcohol)/graphene Oxide Nanocomposites S Morimunementioning

confidence: 71%

Poly(vinyl alcohol)/graphene oxide nanocomposites prepared by a simple eco-process

Morimune

Nishino

Goto

2012

Polym J

141

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Graphene, a single layer of graphite, has recently attracted a large amount of attention because of its extremely high electronic and thermal properties, as many nanoscale materials are based on individual graphene. Graphene oxide (GO), which is the intermediate during the chemical processing of graphene, consists of graphene functionalized with oxygen-containing functional groups that imparts the desirable solution-processability to the neat graphene. Herein, poly(vinyl alcohol) (PVA), a hydrophilic polymer, was selected as the matrix, and PVA/GO nanocomposites were prepared by a simple and environment friendly process using water as the proceeding medium. In the PVA matrix, GO was exfoliated and nanodispersed. We found that the nanocomposites constructed by the incorporation of GO up to 1% by weight possess remarkable properties, such as significantly high mechanical and thermal properties. These excellent reinforcement effects were achieved not only by the rigid structure and high aspect ratio of the exfoliated GO but also by the strong interaction between PVA and GO. Furthermore, owing to the sheet-like structure of GO, the barrier properties of the nanocomposites were found to be dramatically increased.

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Section: Poly(vinyl Alcohol)/graphene Oxide Nanocomposites S Morimunementioning

confidence: 71%

Poly(vinyl alcohol)/graphene oxide nanocomposites prepared by a simple eco-process

Morimune

Nishino

Goto

2012

Polym J

141

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“…Subsequent sublimation of ice results in the formation of a porous solid material. Freeze casting has been successfully adopted to synthesize a variety of porous ceramic, metallic, polymeric and composite materials, including carbon nanotubes or graphene-based polymer composites 18,[30][31][32][33] . Although previous research on freeze casting has been centred on polymers and spherical particles 28,29 , we were particularly interested in studying how 2D graphene sheets interact with anisotropic ice crystal growth without the interference of other polymer or surfactant additives.…”

Section: Resultsmentioning

confidence: 99%

Biomimetic superelastic graphene-based cellular monoliths

et al. 2012

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Many applications proposed for graphene require multiple sheets be assembled into a monolithic structure. The ability to maintain structural integrity upon large deformation is essential to ensure a macroscopic material which functions reliably. However, it has remained a great challenge to achieve high elasticity in three-dimensional graphene networks. Here we report that the marriage of graphene chemistry with ice physics can lead to the formation of ultralight and superelastic graphene-based cellular monoliths. Mimicking the hierarchical structure of natural cork, the resulting materials can sustain their structural integrity under a load of 450,000 times their own weight and can rapidly recover from 480% compression. The unique biomimetic hierarchical structure also provides this new class of elastomers with exceptionally high energy absorption capability and good electrical conductivity. The successful synthesis of such fascinating materials paves the way to explore the application of graphene in a self-supporting, structurally adaptive and 3D macroscopic form.

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“…23 Recently, the design and fabrication of 2D or 3D multifunctional materials has attracted wide scientic attention, which has become an increasingly hot research topic. [24][25][26] For example, 3D multifunctional graphene-based hydrogels and aerogels have been fabricated on a large scale through a metal ion induced self-assembly approach. 27 Graphene was considered as a rapidly rising star material and attracted a great deal of attention owing to its excellent mechanical, electrical, thermal, and optical properties.…”

Section: Introductionmentioning

confidence: 99%

Fusion of nacre, mussel, and lotus leaf: bio-inspired graphene composite paper with multifunctional integration

et al. 2013

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Multifunctional integration is an inherent characteristic for biological materials with multiscale structures. Learning from nature is an effective approach for scientists and engineers to construct multifunctional materials. In nature, mollusks (abalone), mussels, and the lotus have evolved different and optimized solutions to survive. Here, bio-inspired multifunctional graphene composite paper was fabricated in situ through the fusion of the different biological solutions from nacre (brick-and-mortar structure), mussel adhesive protein (adhesive property and reducing character), and the lotus leaf (self-cleaning effect). Owing to the special properties (self-polymerization, reduction, and adhesion), dopamine could be simultaneously used as a reducing agent for graphene oxide and as an adhesive, similar to the mortar in nacre, to crosslink the adjacent graphene. The resultant nacre-like graphene paper exhibited stable superhydrophobicity, self-cleaning, anticorrosion, and remarkable mechanical properties underwater. Multifunctional integration is an inherent characteristic for biological materials with multiscale structures.Learning from nature is an effective approach for scientists and engineers to construct multifunctional materials. In nature, mollusks (abalone), mussels, and the lotus have evolved different and optimized solutions to survive. Here, bio-inspired multifunctional graphene composite paper was fabricated in situ through the fusion of the different biological solutions from nacre (brick-and-mortar structure), mussel adhesive protein (adhesive property and reducing character), and the lotus leaf (self-cleaning effect).Owing to the special properties (self-polymerization, reduction, and adhesion), dopamine could be simultaneously used as a reducing agent for graphene oxide and as an adhesive, similar to the mortar in nacre, to crosslink the adjacent graphene. The resultant nacre-like graphene paper exhibited stable superhydrophobicity, self-cleaning, anti-corrosion, and remarkable mechanical properties underwater.

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Fabrication of Graphene–Polymer Nanocomposites With Higher‐Order Three‐Dimensional Architectures

Cited by 593 publications

References 25 publications

Poly(vinyl alcohol)/graphene oxide nanocomposites prepared by a simple eco-process

Poly(vinyl alcohol)/graphene oxide nanocomposites prepared by a simple eco-process

Biomimetic superelastic graphene-based cellular monoliths

Fusion of nacre, mussel, and lotus leaf: bio-inspired graphene composite paper with multifunctional integration

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