Preparation and electrical conductivity of graphene/ultrahigh molecular weight polyethylene composites with a segregated structure

Hu, Hongliang; Guo, Zhang; Xiao, Liguang; Wang, Hongjie; Zhang, Qiushi; Zhao, Zhongxing

doi:10.1016/j.carbon.2012.05.045

Cited by 124 publications

(79 citation statements)

References 10 publications

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“…Great progress has been made in the development of graphene/polymer composite including sandwich, foam, segregated and porous structured materials for shielding application, but further progress is still needed for the implementation of these materials and their viable and cheap manufacturing. 12,[17][18][19] Wen and co-workers reported lightweight composites of 20 wt% rGO reaches EMI shielding of -38 dB. 20 In further study, ultrathin graphene composites with absorption value of ∼ -15 dB and reflection loss of -30 dB has been reported.…”

Section: Introductionmentioning

confidence: 91%

An asymmetric electrically conducting self-aligned graphene/polymer composite thin film for efficient electromagnetic interference shielding

Kumar

Cho

et al. 2017

AIP Advances

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Here, we study the self-aligned asymmetric electrically conductive composite thin film prepared via casting of graphene oxide (GO)/poly (vinylidene-hexafluoropropylene) (PVDF-HFP) dispersion, followed by low temperature hydriodic acid reduction. The results showed that composite thin film revealed the high orientation of graphene sheets along the direction of film surface. However, graphene sheets are asymmetrically distributed along the film thickness direction in the composite film. Both sides of as prepared composite film showed different surface characteristics. The asymmetric surface properties of composite film induced distinction of surface resistivity response; top surface resistivity (21 Ohm) is ∼ 4 times higher than bottom surface resistivity (5 Ohm). This asymmetric highly electrically conducting composite film revealed efficient electromagnetic interference (EMI) shielding effectiveness of ∼ 30 dB. This study could be crucial for achieving aligned asymmetric composite thin film for high-performance EMI shielding radiation.

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Section: Introductionmentioning

confidence: 91%

An asymmetric electrically conducting self-aligned graphene/polymer composite thin film for efficient electromagnetic interference shielding

Kumar

Cho

et al. 2017

AIP Advances

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“…D) Variation of electrical conductivity of the composites derived from a) one-step and b) two-step prepared powders. Reproduced with permission: panels (A,B), [ 59 ] Copyright 2011, Elsevier; panels (C,D), [ 69 ] Copyright 2012, Elsevier.…”

Section: Promoting Stem Cell Differentiation Into Neuronsmentioning

confidence: 98%

“…To prevent the aggregation of graphene during reduction, Hu et al prepared graphene-coated ultrahigh molecular weight polyethylene (UHMWPE) powders by a two-step process and the resulting composites exhibited a very low percolation threshold and high electrical conductivity (Figure 4 C,D). [ 69 ] A very fl exible nanocomposite fi lm of GO and bacterial cellulose with layered structures was prepared by the vacuum-assisted self-assembly technique. [ 70 ] In another example, Sayyar et al introduced two synthesis procedures to fabricate polycaprolactone/ graphene composites and evaluated the properties of the composites.…”

Section: Utilization Of the Electrical Properties Of Graphenementioning

confidence: 99%

Graphene‐Based Materials in Regenerative Medicine

Ding

Liu

Fan

2015

Adv Healthcare Materials

143

100

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Graphene possesses many unique properties such as two-dimensional planar structure, super conductivity, chemical and mechanical stability, large surface area, and good biocompatibility. In the past few years, graphene-based materials have risen as a shining star on the path of researchers seeking new materials for future regenerative medicine. Herein, the recent research advances made in graphene-based materials mostly utilizing the mechanical and electrical properties of graphene are described. The most exciting findings addressing the impact of graphene-based materials on regenerative medicine are highlighted, with particular emphasis on their applications including nerve, bone, cartilage, skeletal muscle, cardiac, skin, adipose tissue regeneration, and their effects on the induced pluripotent stem cells. Future perspectives and emerging challenges are also addressed in this Review article.

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“…New applications on these materials come from the possibility to generate localized enhancements of the conductivity to be used in sensing devices or in electric circuits. Conductive networks have been recently obtained along segregated paths [14,15], in bulk polymer composites or on their surface by the laser-stimulated percolation of CNTs [16]. Remarkable advantages come also from the combination of different type of fillers (i.e.…”

Section: Introductionmentioning

confidence: 99%

Graphite nanoplatelets and carbon nanotubes based polyethylene composites: Electrical conductivity and morphology

Haznedar

Cravanzola

Zanetti

et al. 2013

Materials Chemistry and Physics

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Preparation and electrical conductivity of graphene/ultrahigh molecular weight polyethylene composites with a segregated structure

Cited by 124 publications

References 10 publications

An asymmetric electrically conducting self-aligned graphene/polymer composite thin film for efficient electromagnetic interference shielding

An asymmetric electrically conducting self-aligned graphene/polymer composite thin film for efficient electromagnetic interference shielding

Graphene‐Based Materials in Regenerative Medicine

Graphite nanoplatelets and carbon nanotubes based polyethylene composites: Electrical conductivity and morphology

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