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- W2777307875 abstract "Non-thermal plasma surface modification for epoxy resin (EP) to improve the insulation properties has wide application prospects in gas insulated switchgear and gas insulated transmission line. In this paper, a pulsed Ar dual dielectrics atmospheric-pressure plasma jet (APPJ) was used for SiCxHyOz thin film deposition on EP samples. The film deposition was optimized by varying the treatment time while other parameters were kept at constants (treatment distance: 10 mm, precursor flow rate: 0.6 l min−1, maximum instantaneous power: 3.08 kW and single pulse energy: 0.18 mJ). It was found that the maximum value of flashover voltages for negative and positive voltage were improved by 18% and 13% when the deposition time was 3 min, respectively. The flashover voltage reduced as treatment time increased. Moreover, all the surface conductivity, surface charge dissipation rate and surface trap level distribution reached an optimal value when thin film deposition time was 3 min. Other measurements, such as atomic force microscopy and scanning electron microscope for EP surface morphology, Fourier transform infrared spectroscopy and x-ray photoelectron spectroscopy for EP surface compositions, optical emission spectra for APPJ deposition process were carried out to better understand the deposition processes and mechanisms. The results indicated that the original organic groups (C–H, C–C, C=O, C=C) were gradually replaced by the Si containing inorganic groups (Si–O–Si and Si–OH). The reduction of C=O in ester group and C=C in p-substituted benzene of the EP samples might be responsible for shallowing the trap level and then enhancing the flashover voltage. However, when the plasma treatment time was longer than 3 min, the significant increase of the surface roughness might increase the trap level depth and then deteriorate the flashover performance." @default.
- W2777307875 created "2018-01-05" @default.
- W2777307875 creator A5007322337 @default.
- W2777307875 creator A5026668246 @default.
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- W2777307875 date "2017-12-21" @default.
- W2777307875 modified "2023-10-01" @default.
- W2777307875 title "Deposition of SiC<sub><i>x</i></sub>H<sub><i>y</i></sub>O<sub><i>z</i></sub>thin film on epoxy resin by nanosecond pulsed APPJ for improving the surface insulating performance" @default.
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- W2777307875 doi "https://doi.org/10.1088/2058-6272/aa97d0" @default.
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