Publications논문

Residual charges during electrospinning assist in formation of piezoelectricity in poly(vinylidene fluoride-co-trifluoroethylene) nanofibers
2016-10-24 17:53:19 조회수636
A Young Choi(1)†, Hyeon Jun Sim(2)†, Min Kyoon Shin(2), Seon Jeong Kim(2)* and Youn Tae Kim(1)* 1) IT Fusion Technology Research Center and Department of IT Fusion Technology, Chosun University, Gwangju 501-759, Korea, 2) Center for Bio-artificial Muscle and Department of Biomedical Engineering, Hanyang University, Seoul 133-791, Korea, 원문 링크 : www.scientific.net/JNanoR.37.13

Abstract

We confirm piezoelectric performance of bottom electrospun PVDF-TrFE mat is higher than that of top mat and report the mechanism of additional poling process of electrospun nanofibers by local electric field which is originating from residual charges in far-field electrospinning process. Piezoelectric output measurement of poly(vinylidene fluoride-co-trifluoroethylene) electrospun nanofibers was performed by push test and output signals of bottom and top were compared. The local electric field strength calculated by simulation was higher than reported electric field strength of near-field electrospinning (10 MV/m). It can be concluded that the piezoelectric outputs of electrospun nanofibers tend to be improved by residual charge density and electrospinning condition.  

 
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