静电纺射流在溶液浓度相对较大的情况下鞭动不稳定性较小,而且会以电势梯度最大方向为轴发生高速旋转,基于该基本原理,借助于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。为了将该定向排列微/纳米纤维束作为原丝通过预氧化和炭化处理制备微/纳米炭纤维,研究了湿热牵伸处理对定向排列微/纳米纤维结晶度和力学性能的影响。结果表明,平面铝板作为接收装置获得的定向排列微/纳米纤维束的结晶度和强度均较低,仅分别为22.66%和（0.58±0.014）cN/dtex,而经过4倍湿热牵伸,纤维束的结晶度和强度分别达到45.90%和（3.02±0.014）cN/dtex,性能得到了显著提高。
Our existing research showed that the electrospinning jet with a minor whipping instability for the solution with a relatively large concentration could rotate with a high speed around the direction of the maximum electric force gradient.Based on the principle,a conventional plane aluminum plate was successfully used as the collecting device to obtain highly-aligned micro-nano fiber assembly.For the purpose of its subsequent application in carbon micro-nano fibers through pre-oxidization and carbonization,this paper carried on a research on the influence of damp-heat drafting on crystallity and mechanical properties of deposited aligned fibers.Results show that aligned fibrous bundle obtained by using a plane aluminum plate as the collecting device has a low crystallity（22.66%） and strength（（0.58±0.014） cN/dtex）.However,after a fourfold damp-heat drafting,these values show a significant increase and are up to 45.90% and（3.02±0.014） cN/dtex,respectively.
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