借助于高速摄影机＂快摄慢放＂的技术观察静电纺泰勒锥-射流区域的细节变化,在保证溶液供应量和射流喷射量一致而达到稳定纺丝的基础上,利用常规平面铝板作为接收装置获得了高度定向排列的微/纳米纤维集合体。结果表明,纤维的基本定向原理为在溶液浓度相对较大的情况下,射流的鞭动不稳定性较小,而且会以电势梯度最大方向为轴发生高速旋转,在高速旋转的过程中射流容易被拉直而形成定向排列纤维阵列。
Detail changes for the zone of Taylor cone-jet during the electrospinning process were observed by the technique of ＂snapshot and slow playing＂ possessed by the high-speed camera.Based on the consistence of solution supply and injection mass to ensure a stable spinning,a conventional plane aluminum plate was successfully used as the collecting device to obtain a highly-aligned nanofiber assembly.The results show that the electrospinning jet with a minor whipping instability for the solution with a relatively large concentration can rotate with a high speed around the direction of the maximum electric force gradient.The electrospinning jet with a minor whipping instability is easy to be stretched during high-speed rotation and forms aligned nanofiber assembly.
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