Electric field distribution and initial jet motion induced by spinneret configuration for molecular orientation in electrospun fibers

doi:10.1016/j.eurpolymj.2017.11.028

CORC > 上海应用物理研究所 > 中国科学院上海应用物理研究所 > 中科院上海应用物理研究所2011-2017年

	Electric field distribution and initial jet motion induced by spinneret configuration for molecular orientation in electrospun fibers
	Li, X ; Lin, JY ; Zeng, YC
刊名	EUROPEAN POLYMER JOURNAL
	2018
卷号	98 页码:330-336
关键词	Mechanical-properties Polymer-chains Single Fibers Nanofibers Mats Morphology
ISSN号	0014-3057
DOI	10.1016/j.eurpolymj.2017.11.028
文献子类	期刊论文
英文摘要	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.
语种	英语
WOS记录号	WOS:000425561700034
内容类型	期刊论文
源URL	[http://ir.sinap.ac.cn/handle/331007/28992]
专题	上海应用物理研究所_中科院上海应用物理研究所2011-2017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.