Journal ArticleDOI
Electrically conductive polyethylene terephthalate/graphene nanocomposites prepared by melt compounding
Hao-Bin Zhang,Wenge Zheng,Qing Yan,Yong Yang,Ji-Wen Wang,Zhao-Hui Lu,Guo-Ying Ji,Zhong-Zhen Yu +7 more
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TLDR
Graphene nanosheets were prepared by complete oxidation of pristine graphite followed by thermal exfoliation and reduction in this paper, and the incorporation of graphene greatly improved the electrical conductivity of PET, resulting in a sharp transition from electrical insulator to semiconductor with a low percolation threshold of 0.47 vol.%.About:
This article is published in Polymer.The article was published on 2010-03-02. It has received 729 citations till now. The article focuses on the topics: Graphene oxide paper & Graphene foam.read more
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Determination of Clomipramine using eco-friendly solid-contact ionophore-doped potentiometric sensor
TL;DR: In this article , a solid-contact ion-selective electrodes were used to evaluate the concentration of Clomipramine in different matrices based on disposable screen-printed carbon electrode.
Book ChapterDOI
Biomedical application of polymer-graphene composites
TL;DR: In this paper , a summary of the polymer matrices utilized and the fabrication methods for graphene composites is also reported, as well as the applications of graphene-polymer-based composites in the biomedical field such as wound healing, drug delivery, and sensors, etc.
Journal ArticleDOI
Polymer Composites with Graphene and Its Derivatives as Functional Materials of the Future
Book ChapterDOI
Mechanical and Thermal Properties of Hybrid Graphene/Halloysite Nanotubes Reinforced Polyethylene Terepthalate Nanocomposites
TL;DR: In this article, the effects of graphene nanoplatelets (GNP) and halloysite nanotubes (HNT) constant ratio content and processing methods on the mechanical and thermal properties of polyethylene terepthalate (PET) nanocomposites were investigated.
Elasticity And Long-Term Behavior of Recycled Polyethylene Terephthalate (rPET)/Montmorillonite (MMT) Composites
Remo Merijs-Meri,Jānis Zicāns,Roberts Maksimovs,Tatjana Ivanova,Mārtiņš Kalniņš,Rita Bērziņa,Guntis Japiņš +6 more
Abstract: Abstract Recycled polyethylene terephthalate (rPET) nanocomposites with various amounts of montmorillonite clay (MMT) have been manufactured by using twin screw extrusion. By rising MMT weight content Wf up to 1 wt.% it is possible to increase yield strength and ultimate strength of the composite by 17% and 27% respectively in comparison to neat rPET. Introduction of MMT in the rPET leads also to considerable increase of the modulus of elasticity E. Relationship E(Wf), however, is non-linear and is characterized by slow-down in E growth along with increasing MMT content. At low nanofiller content experimental results are sufficiently well described by using the method of Mori–Tanaka and the solution of Eshleby for the case of completely exfoliated chaotically oriented nanoparticles of MMT. Results of the investigation of long-term creep with duration of 5000 h testify that introduction of MMT in the rPET matrix leads to reduced creep of the composites. Equation of power law can be used for sufficiently reliable prediction of long-term creep of the investigated materials by the method of extrapolation to the time period, exceeding length of the short-term experiment by 50 times.
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Journal ArticleDOI
Electric Field Effect in Atomically Thin Carbon Films
Kostya S. Novoselov,Andre K. Geim,Sergey V. Morozov,Da Jiang,Y. Zhang,S. V. Dubonos,Irina V. Grigorieva,A. A. Firsov +7 more
TL;DR: Monocrystalline graphitic films are found to be a two-dimensional semimetal with a tiny overlap between valence and conductance bands and they exhibit a strong ambipolar electric field effect.
Journal ArticleDOI
Two-dimensional gas of massless Dirac fermions in graphene
Kostya S. Novoselov,A. K. Geim,Sergey V. Morozov,Da Jiang,Mikhail I. Katsnelson,Irina V. Grigorieva,S. V. Dubonos,A. A. Firsov +7 more
TL;DR: This study reports an experimental study of a condensed-matter system (graphene, a single atomic layer of carbon) in which electron transport is essentially governed by Dirac's (relativistic) equation and reveals a variety of unusual phenomena that are characteristic of two-dimensional Dirac fermions.
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Measurement of the Elastic Properties and Intrinsic Strength of Monolayer Graphene
TL;DR: Graphene is established as the strongest material ever measured, and atomically perfect nanoscale materials can be mechanically tested to deformations well beyond the linear regime.
Journal ArticleDOI
Superior Thermal Conductivity of Single-Layer Graphene
Alexander A. Balandin,Suchismita Ghosh,Wenzhong Bao,Irene Calizo,Desalegne Teweldebrhan,Feng Miao,Chun Ning Lau +6 more
TL;DR: The extremely high value of the thermal conductivity suggests that graphene can outperform carbon nanotubes in heat conduction and establishes graphene as an excellent material for thermal management.
Journal ArticleDOI
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.