Influence of nanoparticle surface modification on the electrical behaviour of polyethylene nanocomposites

Ma, Dongling; Hugener, T.; Siegel, Richard W.; Christerson, Anna; Mårtensson, Eva; Önneby, C.; Schadler, Linda S.

doi:10.1088/0957-4484/16/6/016

Cited by 213 publications

(149 citation statements)

References 43 publications

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“…8,9 These states are highly dependent on the chemistry of nanoparticle surface modification. 10 Surface modification is silicon based; it creates a stable bonding between nanoparticles and polymer and contributes to a) Electronic mail: elena.kubyshkina@ee.kth.se b) Also affiliated with KTH Royal Institute of Technology, School of Chemical Science and Engineering, Fibre and Polymer Technology, Stockholm SE-100 44, Sweden.…”

mentioning

confidence: 99%

Communication: Band bending at the interface in polyethylene-MgO nanocomposite dielectric

Kubyshkina

Unge

Jonsson

2017

The Journal of Chemical Physics

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mentioning

confidence: 99%

Communication: Band bending at the interface in polyethylene-MgO nanocomposite dielectric

Kubyshkina

Unge

Jonsson

2017

The Journal of Chemical Physics

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“…The treated silica agglomerates showed nucleating effect and reduced the size and perfection of the spherulites, and the measurement of water contact angle also indicated great difference between the treated and untreated silica nanocomposites [88]. The breakdown strength of treatedTiO 2 /LDPE showed a nearly 40% increase than that of as-received nanoscale TiO 2 -filled specimens [89]. These results mean that the surface condition of nanoparticles is the dominant factor to determine the macroscopic performances of nanodielectrics.…”

Section: Discussionmentioning

confidence: 85%

Short-term breakdown and long-term failure in nanodielectrics: a review

Yin

Chen

et al. 2010

IEEE Trans. Dielect. Electr. Insul.

291

172

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Nanodielectrics, which are concentrated in polymer matrix incorporating nanofillers, have received considerable attention due to their potential benefits as dielectrics. In this paper, short-term breakdown and long-term failure properties of nanodielectrics have been reviewed. The characteristics of polymer matrix, types of nanoparticle and its content, and waveforms of the applied voltage are fully evaluated. In order to effectively comment on the published experimental data, a ratio k has been proposed to compare the electric properties of the nanodielectrics with the matrix and assess the effect for nanoparticles doping. There is evidence that the short-term breakdown properties of nanodielectrics show a strong dependence on the applied voltage waveforms. The polarity and the cohesive energy density (CED) of polymer matrix have a dramatic influence on the properties of nanodielectrics. Nanoparticle doped composites show a positive effect on the long-term failure properties, such as ageing resistance and partial discharge (PD) properties of nanocomposites are superior than microcomposites and the matrix. The larger the dielectric constant and CED of the matrix become, the more significant improvements in long-term performance appear. Based on the reported experimental results, we also present our understandings and propose some suggestions for further work.

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“…11 12 Muszynska et al 13 have demonstrated an overall increase in conductivity of a polyethylene oxide matrix using Al filler nanoparticles in concentration range 0.25-5 wt%. Beyond this miniscule range a decrease in conductivity is observed.…”

Section: Introductionmentioning

confidence: 99%

Enhanced DNA Separation Rates in Nano-Platinum Doped Agarose

Bhattacharya¹,

Chanda²,

Liu³

et al. 2008

j bionanosci

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In this work, nanoparticle-doped matrices for DNA separation at low voltages are described. High conductivity agarose gels doped with platinum nano-particles have been synthesized and characterized by TEM, EDS and SEM. This new doping technique for agarose gels enhances the dielectric constant of the gels by up to 1.5 folds as compared to undoped gel, decreases the resistance (from 97 ohms to about 60 ohms) and increases DNA mobility by 1.5 times (from 6 6 × 10 −5 cm 2 /V · sec to 9 3 × 10 −5 cm 2 /V · sec) at lower operating electric fields (8 V/cm). We believe that the faster movement of DNA arises from an increased dielectric constant and a reduced resistance of the doped material resulting in increased ionic mobility. Using image analysis tools, we have also observed that there is no band broadening effects in the platinum doped gel sample, which indicate no appreciable temperature rise due to incorporation of platinum nanoparticles in agarose gel.

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Influence of nanoparticle surface modification on the electrical behaviour of polyethylene nanocomposites

Cited by 213 publications

References 43 publications

Communication: Band bending at the interface in polyethylene-MgO nanocomposite dielectric

Communication: Band bending at the interface in polyethylene-MgO nanocomposite dielectric

Short-term breakdown and long-term failure in nanodielectrics: a review

Enhanced DNA Separation Rates in Nano-Platinum Doped Agarose

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