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	Effect of the electrostatic property in the electrospinning of polyvinylidene fluoride solution
	Liu Jia-nan ; Jia Zhi-dong ; Yang Cui-ru ; Guan Zhi-cheng
	2010-10-12 ; 2010-10-12
关键词	Experimental/ accumulation layers electric field effects electrospinning nanofibres nanotechnology polymer solutions scanning electron microscopy/ electrospinning polyvinylidene fluoride solution nanofibres high voltage electrostatic field polyvinylidene fluoride-n,n-dimethylformamide solution electric field intensity electrospun jet positive electrostatic field polarity charge accumulation metal grounding device scanning electron microscopy SEM size 75 nm to 250 nm/ A6125H Structure of macromolecular and polymer solutions (solubility, swelling, etc.) polymer melts A6146 Structure of solid clusters, nanoparticles, nanotubes and nanostructured materials A8120S Preparation of polymers and plastics A8116 Methods of nanofabrication and processing/ size 7.5E-08 to 2.5E-07 m
中文摘要	Electrospinning is a technology to fabricate continuous nanofibres with high voltage electrostatic field. A polyvinylidene fluoride(PVDF)/n n-dimethylformamide(DMF) solution was chosen for the electrospinning. A needle-plane set-up was used to spin ultrafine fibers with different electric field intensity and different polarity electric- field. Either metal or insulant was chosen as the collection for the fibers. Beads and fibers were both obtained in this experiment. Fiber diameter ranged between 75 nm to 250 nm. It was observed that electrostatic phenomenon occurred in the electrospun process, and the electrostatic property of PVDF affected the process. Net charge was accumulated by the electrospun jet during the process. The higher the electrostatic field was, the more net charge was. More net charge was accumulated in positive electrostatic field than in negative electrostatic field. With the same electric field intensity hut different polarity electric field, the feature of fibers and the fiber diameter were different. Charge accumulation affected the spinnability. For the PVDF/DMF system, a lower positive electrostatic field was propitious to produce finer and more uniform fibers. A metal grounding device should be settled to conduct the cumulative net charge, otherwise the electrospinning could not continue. The morphology of fibers electrospun from PVDF was observed by scanning electron microscopy (SEM).
语种	中文
出版者	Editorial Board of High Voltage Engineering ; China
内容类型	期刊论文
源URL	[http://hdl.handle.net/123456789/82589]
专题	清华大学
推荐引用方式 GB/T 7714	Liu Jia-nan,Jia Zhi-dong,Yang Cui-ru,et al. Effect of the electrostatic property in the electrospinning of polyvinylidene fluoride solution[J],2010, 2010.
APA	Liu Jia-nan,Jia Zhi-dong,Yang Cui-ru,&Guan Zhi-cheng.(2010).Effect of the electrostatic property in the electrospinning of polyvinylidene fluoride solution..
MLA	Liu Jia-nan,et al."Effect of the electrostatic property in the electrospinning of polyvinylidene fluoride solution".(2010).

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