Improved electrical insulating properties of LDPE based nanocomposite: Effect of surface modification of magnesia nanoparticles

Ju, Sheng; Zhang, Hui; Chen, Mingji; Zhang, Chong; Chen, Xin; Zhang, Zhong

doi:10.1016/j.compositesa.2014.07.003

Cited by 59 publications

(35 citation statements)

References 37 publications

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“…The long range energy well provided with polyethylene at the interface could also explain the sensitivity of the nanocomposite performance to the particle dispersion. 38 When the dispersion is poor, overlapping interfacial regions create local percolation paths for conducting electrons.…”

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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“…This includes the use of surfactants, which help to reduce high surface energy and interfacial tension in nanofillers . Improvement in dielectric properties such as AC and DC breakdown strength , electrical and water tree resistance as well as reduction in the space charge , partial discharge , permittivity and dielectric loss has been widely documented in nanocomposites with chemically treated nanoparticles.…”

Section: Application Of Micro and Nano‐size Filler In High Voltage Inmentioning

confidence: 99%

A review of thermoplastic elastomeric nanocomposites for high voltage insulation applications

Ismail

Mariatti

2018

Polymer Engineering & Sci

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Thermoplastic elastomer (TPE) has gained acceptance as third generation of polymeric materials for high voltage (HV) insulators. The interesting features showed by TPEs were found to fulfill some particular requirements for HV insulations, at least for the distribution class applications, especially at light contamination environments. Introduction of nanomaterials which widely reported to give significant improvements in the electrical, mechanical, thermal and other properties of polymer has attracted attention to the synergistic properties of combining the two complementary technologies of thermoplastic elastomers and nanocomposites. In this paper, research works on various types of TPEs having promising performance as HV insulators are thoroughly reviewed. The emergence of nanocomposites in the electrical insulation field and the important properties consideration for HV insulators as well as the processing techniques of TPE nanocomposites are also discussed. Finally, some of the past and recent developments of TPE nanocomposites focusing on the electrical insulation properties are highlighted in this article. POLYM. ENG. SCI., 58:E36–E63, 2018. © 2018 Society of Plastics Engineers

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“…It is well known that the interfacial effects of nanoscale fillers have a significant role in the bulk properties of polymer composites [4,5]. Therefore, it is vital that we understand the effects of particle size and surface area on the structure and chain dynamics of polymer in the interphase region around filler aggregates, and consequently on the dielectric properties of such composites [6,7].…”

Section: Introduction Motivationmentioning

confidence: 99%

Interfacial effects on dielectric properties of ethylene propylene rubber–titania nano- and micro-composites

et al. 2015

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The influence of titania particle size on dielectric properties of ethylene-propylene rubber (EPR) composites was investigated, with an emphasis on the chain dynamics in the interphase region. We hypothesized that a reduction in the conformational entropy of rubber chains in the interphase region would make the restricted chains more prone to orient along the applied electric field and increase dielectric permittivity than the chains in the bulk. The morphology and microstructure of the composites was characterized using scanning electron microscopy and atomic force microscopy, and a notable difference was detected in the average aggregate size and microstructure of the interphase between the nano-and microcomposites. We predicted that the physical attraction between nano-and micro-fillers and polymer, as characterized by the surface energy of fillers, would be similar. However, differences in the chain dynamics investigated by dynamic mechanical thermal analysis and dielectric spectroscopy confirmed the presence of more restricted chains, quantitatively and qualitatively, in the interphase region of the nanocomposites compared to the micro-composites. We concluded that the higher dielectric properties of the nanocomposites could be explained by the lower conformational entropy of chains in these composites compared to those in the micro-composites.

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Improved electrical insulating properties of LDPE based nanocomposite: Effect of surface modification of magnesia nanoparticles

Cited by 59 publications

References 37 publications

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

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

A review of thermoplastic elastomeric nanocomposites for high voltage insulation applications

Interfacial effects on dielectric properties of ethylene propylene rubber–titania nano- and micro-composites

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