Electric field distribution and initial jet motion induced by spinneret configuration for molecular orientation in electrospun fibers
Li, X; Lin, JY; Zeng, YC
2018
发表期刊EUROPEAN POLYMER JOURNAL
ISSN0014-3057
卷号98页码:330-336
文章类型期刊论文
摘要Understanding the molecular orientation of electrospun fibers is a key challenge for tailoring fiber properties. The studies of electric field distribution, and the motion of the initial portion of the polymer jet, are of interest for clarifying molecular orientation in fibers during electrospinning. In this work, we study the impact of electric field distribution and the initial jet motion induced by two kinds of spinneret configurations, referred to as a needle configuration and a hole configuration, on molecular orientation in electrospun PEO fibers. Using FE-SEM, FTIR and WAXD techniques, the fiber diameter and molecular orientation of the fibers prepared with the needle electrospinning system and the hole electrospinning system are characterized. To explore jet stretching and chain orientation during the spinning process, electric field simulation and high-speed photography are performed to obtain the electric field characteristics and to measure the initial jet velocities for the needle and the hole systems. Our results reveal the higher electric field strength around the spinneret and the larger initial jet velocities, which depend on the spinneret configuration, result in the higher degree of molecular orientation in fibers.
关键词Mechanical-properties Polymer-chains Single Fibers Nanofibers Mats Morphology
DOI10.1016/j.eurpolymj.2017.11.028
收录类别SCI
语种英语
WOS记录号WOS:000425561700034
引用统计
被引频次:1[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.sinap.ac.cn/handle/331007/28992
专题中科院上海应用物理研究所2011-2018年
作者单位1.Li, X
2.Lin, JY
3.Zeng, YC
推荐引用方式
GB/T 7714
Li, X,Lin, JY,Zeng, YC. Electric field distribution and initial jet motion induced by spinneret configuration for molecular orientation in electrospun fibers[J]. EUROPEAN POLYMER JOURNAL,2018,98:330-336.
APA Li, X,Lin, JY,&Zeng, YC.(2018).Electric field distribution and initial jet motion induced by spinneret configuration for molecular orientation in electrospun fibers.EUROPEAN POLYMER JOURNAL,98,330-336.
MLA Li, X,et al."Electric field distribution and initial jet motion induced by spinneret configuration for molecular orientation in electrospun fibers".EUROPEAN POLYMER JOURNAL 98(2018):330-336.
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