纳秒脉冲介质阻挡放电特性及其聚合物材料表面改性

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Abstract Study of characteristics and application of dielectric barrier discharge (DBD) excited by unipolar nanosecond pulse are presented in this paper. Characteristics of unipolar nanosecond-pulse DBD in atmospheric air are investigated using electrical measurement and discharge photograph, and homogeneous discharge is obtained under certain conditions, and the influence of discharge characteristics and uniform of DBD dependent on air gap spacing are analyzed. Furthermore, surface treatment of polyimide films using the homogeneous DBDs is studied. The change of chemical and physical modification of the surface before and after plasma processing is evaluated according to static angle measurement, atomic force microscopy (AFM), and X-ray photoelectron spectroscopy (XPS), which is compared with the effect of filamentary DBDs treatment. Results show that the measured discharge current exhibits bipolar pulses and the discharge current, electric barrier voltage and discharge power decrees with the gap spacing and the homogeneous DBD can be obtained under narrow gap spacing. In addition, both surface morphology and chemical composition of polyimide films are modified, and the modification includes the rise of hydrophilicity, surface oxidation and the enhancement of surface roughness, and homogeneous DBD can modify the surface more uniformly than filamentary DBD.

Key words： Nanosecond pulse dielectric barrier discharge atmospheric air surface treatment

Received: 04 December 2009 Published: 04 March 2014

PACS:

TM215.3

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	Articles by authors
	Zhang Cheng
	Shao Tao
	Yu Yang
	Yan Ping
	Zhou Yuanxiang

Cite this article:

Zhang Cheng,Shao Tao,Yu Yang等. Characteristics of Unipolar Nanosecond Pulse DBD andIts Application on Surface Treatment of Polyimer Films[J]. Transactions of China Electrotechnical Society, 2010, 25(5): 31-37.

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http://dgjsxb.ces-transaction.com/EN/ OR http://dgjsxb.ces-transaction.com/EN/Y2010/V25/I5/31

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