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	Polarity reversal charging of polypropylene films under DC corona discharge
	Zhang, B ; Zhou, YX ; Wang, NH ; Liang, XD ; Guan, ZC ; Takada, T
	2010-05-10 ; 2010-05-10
会议名称	JOURNAL OF ELECTROSTATICS ; 10th International Conference on Electrostatics ; Espoo, FINLAND ; Web of Science
关键词	polypropylene corona charging polarity reversal space charge ELECTRETS Engineering, Electrical & Electronic
中文摘要	In this paper, a needle-plane electrode system and polypropylene (PP) films were used to study the DC corona charging of polymers. It was found that the charges injected into the PP films sometimes show different polarity to the applied DC voltage, called polarity reversal charging, which may results in invalidation charging. The pulsed electro-acoustic (PEA) space charge measurement showed that charges of different polarities have been injected into the PP films' bulk, simultaneously. From these results, a mechanism of two charging processes of high-field injection and return-stroke injection has been introduced here. We presumed that the return-stroke injection can be boosted with the increase of corona voltages and thus reduces the net charge as well as even change the polarity of charges injected. (c) 2005 Elsevier B.V. All rights reserved.
会议录出版者	ELSEVIER SCIENCE BV ; AMSTERDAM ; PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
语种	英语 ; 英语
内容类型	会议论文
源URL	[http://hdl.handle.net/123456789/18614]
专题	清华大学
推荐引用方式 GB/T 7714	Zhang, B,Zhou, YX,Wang, NH,et al. Polarity reversal charging of polypropylene films under DC corona discharge[C]. 见:JOURNAL OF ELECTROSTATICS, 10th International Conference on Electrostatics, Espoo, FINLAND, Web of Science.

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