Surface charge dissipation and DC flashover characteristic of DBD plasma treated epoxy resin/AlN nanocomposites

Chen, Xiangrong; Guan, Honglu; Jiang, Tie; Du, Hao; Paramane, Ashish; Zhou, Hao

doi:10.1109/tdei.2019.008598

Cited by 30 publications

(15 citation statements)

References 24 publications

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“…The roughness can affect the surface charge movement in two aspects: by forming shallow traps that help in charge transportation and by reducing the secondary-electron yield. Increased surface conductivity, surface roughness, and the number of shallow traps enhance the performance of nanodielectrics [84].…”

Section: Impact Of Nanodielectrics On Surface Chargingmentioning

confidence: 99%

Electrical discharge resistance of polymeric nanocomposites

Banerjee

Saini

2021

IET Nanodielectrics

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The trend of choosing insulating materials has changed in the past few decades, and a considerable shift has occurred from conventional ceramic to non-ceramic insulating materials. The addition of inorganic fillers has greatly improved the thermal conductivity, discharge resistance, hydrophobicity recovery, and vandalism-resistance properties of polymeric insulating materials. Since the beginning of the present century, the field of nanomaterial research has gained much attention. Several studies have been conducted to investigate and analyze polymer nanocomposites by adding nanoparticles of varying size and concentration as fillers. The aim is to improve the characteristics and reformation of thermal, electrical, and mechanical properties of existing polymeric insulation materials. However, certain inconsistencies are prevalent with results obtained for polymer nanocomposites. A comprehensive review is presented based on available literature focussing on the advancement from polymeric insulating materials to polymeric nanocomposites and its impact on partial discharge resistance, surface charging, and tracking and erosion resistance. It is observed that the weight percent and dispersion of nano-or micro-sized particles into the base polymer matrix governs the performance of polymer composites. At higher filler loading, resistance to partial discharge and tracking and erosion decreases as a result of the agglomeration of fillers, whereas resistance to surface charge accumulation increases at higher filler loading because the formation of shallow traps increases the charge decay rate. It is suggested that when both micro-and nanofillers are mixed in proper proportion, micro-nano hybrid composites provide better performance than composites filled with only nano-or microfillers.This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.

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Section: Impact Of Nanodielectrics On Surface Chargingmentioning

confidence: 99%

Electrical discharge resistance of polymeric nanocomposites

Banerjee

Saini

2021

IET Nanodielectrics

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“…The results showed that DBD treatment leads to surface oxidation and the formation of water-soluble low molecular weight oxidized material, which agglomerated into small mounts on the surface producing a complex globular structure. Chen X et al [9] studied the influence of the dielectric barrier discharge (DBD) plasma treatment in the open air on the surface charge dissipation and the flashover voltage of the epoxy resin (EP) with nano-aluminum nitride (AlN) composites. The results showed an improvement in surface potential dissipation of the treated samples after positive and negative corona charging.…”

Section: Introductionmentioning

confidence: 99%

Surface electric charge decay behavior of Polypropylene (PP) films treated by atmospheric air dielectric barrier discharge

Labiod

Ziari²,

Bousbaa³

et al. 2023

J. Phys.: Conf. Ser.

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Atmospheric air dielectric barrier discharge (DBD) is one of the most effective physical techniques for the cold plasma source. It is a promising technique used to modify the surface properties of polymers. This modification leads to improving wetting and adhesion properties, a change in surface roughness and other significant technological features. In recent studies, researchers have showed that DBD plasma exposure can modify the electric properties of insulating materials. In this study, we focused our attention on the influence of DBD plasma treatment on the surface electric charge behavior in polypropylene (PP) thin films. The effect of DBD plasma has been studied as a function of treatment time for two values of applied discharge voltages; 7 and 12 kV. After being exposed to DBD plasma, the samples were charged for 5 seconds in ambient air using a negative triode corona electrode system. The influence of DBD plasma treatment on the surface electric charge behaviour in PP thin films was investigated. The surface characterization of the untreated and treated PP films is performed using surface electric charge decay measurements, for identical charging conditions.

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“…Through scanning electron microscopy (SEM) , and atomic force microscopy (AFM) tests, the microscopic morphologies of the material were obtained, and it was found that the surface appearance was tailored and normally accompanied by an increase in surface roughness after the plasma treatment. In addition, for insulating materials, the water contact angle (WCA) between the water droplet and the material surface was calculated, which was applied to assess the surface hydrophobicity of the materials. − Two-finger copper electrodes with a high-voltage source were applied to carry out the flashover test, which was a key parameter to assess the electrical insulating strength of the insulating materials. − …”

Section: Introductionmentioning

confidence: 99%

Rapid Evaluation of Material Surface Modification by a Dielectric Barrier Discharge Based on Fluorescence Coloring and Image Processing Technologies

Zhu

Guan

et al. 2022

ACS Appl. Mater. Interfaces

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In recent years, improving the surface properties of large-scale insulation by plasma modification has attracted extensive attention with the development of power systems and high-tech industries. However, routine evaluations of the modification effect and uniformity require complicated tests after the plasma is powered off, which waste a lot of time and cannot regulate the modification effect online. In this study, a novel fluorescence-assisted dielectric barrier discharge (DBD) for fabricating a functional film is developed, and a rapid evaluation method of the modification effect and uniformity is proposed based on fluorescence coloring and image processing technologies. The results show that the addition of an organic fluorescent agent in the DBD with hexamethyldisiloxane (HMDSO) has no negative effect on the plasma discharge and modification effect, and the fluorescence-assisted DBD successfully fabricates the functional films with typical chromogenic groups (N−H and S�O) that exhibit typical fluorescence under an UV lamp. According to image processing and parameter extraction, the plasma-assisted fluorescent film is converted into a two-dimensional (2D) color map with nine color levels, and three characteristic parameters are proposed to evaluate the modification effect rapidly and directly. It shows that the warmer the color of the treated sample, the better the hydrophobicity and electrical insulating properties, where the red region represents the optimally modified surface, while the blue region represents the worst one. The area, shape, and integrity of the plasma modification are clarified quantificationally, which provides the possibility of further online evaluation of the modification effect and uniformity by the plasma treatment.

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Surface charge dissipation and DC flashover characteristic of DBD plasma treated epoxy resin/AlN nanocomposites

Cited by 30 publications

References 24 publications

Electrical discharge resistance of polymeric nanocomposites

Electrical discharge resistance of polymeric nanocomposites

Surface electric charge decay behavior of Polypropylene (PP) films treated by atmospheric air dielectric barrier discharge

Rapid Evaluation of Material Surface Modification by a Dielectric Barrier Discharge Based on Fluorescence Coloring and Image Processing Technologies

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