期刊
PLASMA SCIENCE & TECHNOLOGY
卷 19, 期 12, 页码 -出版社
IOP PUBLISHING LTD
DOI: 10.1088/2058-6272/aa8766
关键词
aramid fiber; dielectric barrier discharge; FT-IR; optical emission spectra; surface modification
资金
- National Natural Science Foundation of China [51377014, 51407022, 51677019]
- National Key Research and Development program of China [2016YFC0207200]
In this paper, a long line-shape dielectric barrier discharge excited by a nanosecond pulse and AC is generated in atmospheric air for the purpose of discussing the uniformity, stability and ability of aramid fiber treatment. The discharge images, waveforms of current and voltage, optical emission spectra, and gas temperatures of both discharges are compared. It is found that nanosecond pulsed discharge has a more uniform discharge morphology, higher energy efficiency and lower gas temperature, which indicates that nanosecond pulsed discharge is more suitable for surface modification. To reduce the water contact angle from 96 degrees to about 60 degrees, the energy cost is only about 1/ 7 compared with AC discharge. Scanning electron microscopy, Fourier transform infrared spectroscopy and x-ray photoelectron spectroscopy are employed to understand the mechanisms of hydrophilicity improvement.
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