| 静电纺丝法制备定向排列微/纳米纤维及其机理 |
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| 引用本文： | 刘呈坤,来侃,孙润军,陈美玉.静电纺丝法制备定向排列微/纳米纤维及其机理[J].高分子材料科学与工程,2012(6):117-120. |
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| 作者姓名： | 刘呈坤 来侃 孙润军 陈美玉 |
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| 作者单位： | 西安工程大学纺织与材料学院;西安交通大学材料科学与工程学院;总后军需装备研究所汉麻研究中心 |
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| 基金项目： | 陕西省重点学科专项建设资金(陕教资[2008]169) |
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| 摘 要： | 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。
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| 关 键 词： | 静电纺丝 聚丙烯腈 高速摄影 电场模拟 纤维定向 |
Preparation of Aligned Nanofiber Assembly Through Electrospinning and Its Mechanism |
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| Chengkun Liu,Kan Lai,Runjun Sun,Meiyu Chen.Preparation of Aligned Nanofiber Assembly Through Electrospinning and Its Mechanism[J].Polymer Materials Science & Engineering,2012(6):117-120. |
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| Authors: | Chengkun Liu Kan Lai Runjun Sun Meiyu Chen |
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| Affiliation: | 1(1.School of Textile and Materials,Xi’an Polytechnic University,Xi’an 710048,China;2.Research Centerof China Hemp,Quartermaster Research Institute of General Logistics Department, People′s Liberation Army(P.L.A.),Beijing 100088 China;3.School of Materials Science and Engineering,Xi’an Jiaotong University,Xi’an 710049,China) |
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| Abstract: | 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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| Keywords: | electrospinning poly(acrylonitrile) high-speed photography electric-field simulation fiber alignment |
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