Journal ArticleDOI
Molecular-Level Dispersion of Graphene into Poly(vinyl alcohol) and Effective Reinforcement of their Nanocomposites
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TLDR
In this paper, the preparation of polyvinyl alcohol (PVA) nanocomposites with graphene oxide (GO) using a simple water solution processing method is reported, and efficient load transfer is found between the nanofiller graphene and matrix PVA and the mechanical properties of the graphene-based nanocompositionite with molecule-level dispersion are significantly improved.Abstract:
Despite great recent progress with carbon nanotubes and other nanoscale fillers, the development of strong, durable, and cost-efficient multifunctional nanocomposite materials has yet to be achieved. The challenges are to achieve molecule-level dispersion and maximum interfacial interaction between the nanofiller and the matrix at low loading. Here, the preparation of poly(vinyl alcohol) (PVA) nanocomposites with graphene oxide (GO) using a simple water solution processing method is reported. Efficient load transfer is found between the nanofiller graphene and matrix PVA and the mechanical properties of the graphene-based nanocomposite with molecule-level dispersion are significantly improved. A 76% increase in tensile strength and a 62% improvement of Young's modulus are achieved by addition of only 0.7 wt% of GO. The experimentally determined Young's modulus is in excellent agreement with theoretical simulation.read more
Citations
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Single-layer graphene-assembled 3D porous carbon composites with PVA and Fe3O4 nano-fillers: an interface-mediated superior dielectric and EMI shielding performance
B.V. Bhaskara Rao,Prasad Yadav,Radhamanohar Aepuru,Himanshu Sekhar Panda,Satishchandra Ogale,Sangeeta Kale +5 more
TL;DR: The enhanced dielectric properties are suggested to be the result of improvement in the localized polarization of the integrated interface system formed by the uniform adsorption of Fe3O4 on the surface of SLGAPC conjugated with PVA, indicating the promising character of this material for flexible EMI shielding applications.
Journal ArticleDOI
Biodegradable toughened nanohybrid shape memory polymer for smart biomedical applications
TL;DR: The improved biodegradable nature along with the rapid self-expanding ability of the nanohybrid at 37 °C make it appropriate for many biomedical applications including a self-Expanding stent for occlusion recovery due to its tough and flexible nature.
Journal ArticleDOI
Functionalized Carbon Materials for Electronic Devices: A Review.
TL;DR: This review article discusses the synthetic methods of different functionalized carbon materials based on graphene oxide (GO), SWCNTs, MWC NTs, carbon fibers (CFs), and activated carbon (AC) and highlights the recent developments and applications.
Journal ArticleDOI
Polyimide reinforced with hybrid graphene oxide @ carbon nanotube: Toward high strength, toughness, electrical conductivity
TL;DR: In this paper, a hybrid GO/CNT nanostructure was designed and crosslinked through amide bond, which can disperse and embed into the polymer matrix commendably, providing strong interfacial interaction between the nanofillers and the PI matrix.
Journal ArticleDOI
2D transition metal dichalcogenide nanomaterials: advances, opportunities, and challenges in multi-functional polymer nanocomposites
Mojtaba Ahmadi,Omid Zabihi,Seokwoo Jeon,Mitra Yoonessi,Mitra Yoonessi,Aravind Dasari,Seeram Ramakrishna,Minoo Naebe +7 more
TL;DR: In this article, the potential of two-dimensional transition metal dichalcogenide (TMD) nanomaterials for multi-functional polymeric nanocomposites is discussed.
References
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Synthesis of graphene-based nanosheets via chemical reduction of exfoliated graphite oxide
Sasha Stankovich,Dmitriy A. Dikin,Richard D. Piner,Kevin A. Kohlhaas,Alfred Kleinhammes,Yuanyuan Jia,Yue Wu,SonBinh T. Nguyen,Rodney S. Ruoff +8 more
TL;DR: In this paper, a colloidal suspension of exfoliated graphene oxide sheets in water with hydrazine hydrate results in their aggregation and subsequent formation of a high surface area carbon material which consists of thin graphene-based sheets.
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Graphene-based composite materials
Sasha Stankovich,Dmitriy A. Dikin,Geoffrey Dommett,K. Kohlhaas,Eric Zimney,Eric A. Stach,Richard D. Piner,SonBinh T. Nguyen,Rodney S. Ruoff +8 more
TL;DR: The bottom-up chemical approach of tuning the graphene sheet properties provides a path to a broad new class of graphene-based materials and their use in a variety of applications.
Journal ArticleDOI
Processable aqueous dispersions of graphene nanosheets
TL;DR: It is reported that chemically converted graphene sheets obtained from graphite can readily form stable aqueous colloids through electrostatic stabilization, making it possible to process graphene materials using low-cost solution processing techniques, opening up enormous opportunities to use this unique carbon nanostructure for many technological applications.