EFFECT OF CHARGE DENSITY ON THE TAYLOR CONE IN ELECTROSPINNING
A detailed understanding of charge density and its origins during the electrospinning process is desirable for developing new electrospinnable polymer-solvent systems and ensuring mathematical models of the process are accurate. In this work, two different approaches were taken to alter the charge density in order to measure its effect on the Taylor cone, mass deposition rate and initial jet diameter. It was found that an increase in charge density results in a decrease in the mass deposition rate and initial jet diameter. A theory is proposed for this behaviour in that an increase in charge density leads to the tip of the Taylor cone forming a smaller radius of curvature resulting in the concentration of electric stresses at the tip. This leads to the electrostatic forces drawing the initial jet from a smaller effective area or virtual orifice.
Electrospinning poly(vinyl alcohol) charge density Taylor cone
JONATHAN STANGER NICK TUCKER KERRY KIRWAN MARK P.STAIGER
Department of Mechanical Engineering, University of Canterbury, Private Bag 4800, Christchurch, 8041 Food and Biomaterials Group, Crop and Food Research Limited, Private Bag 4704, Lincoln, 7608, New Ze International Manufacturing Research Centre, University of Warwick Coventry, United Kingdom Department of Mechanical Engineering, University of Canterbury, Private Bag 4800, Christchurch, 8041
国际会议
第五届先进材料与加工国际会议(Fifth International Conference on Advanced Materials and Processing ICAMP-5)
哈尔滨
英文
1956-1961
2008-09-03（万方平台首次上网日期，不代表论文的发表时间）