静电纺取向排列纳米纤维纱的研究进展

Research Progress of Electrospun Oriented Nanofiber Yarns

随着纳米纤维在光电子器件、柔性传感器中的发展与应用,对纳米纤维的需求也日益增长,纳米纤维集合体的制备方法有多种,其中采用静电纺丝法制备定向纳米纤维集合体,是当前制备性能优良的纳米纤维的热门研究方向。针对当前静电纺纳米纤维的结构无序性、力学性能各向同性的问题,系统地介绍了采用静电纺制备定向纳米纤维束、纱线及纳米包覆纱的方法,分析了这些方法的原理及特点,有助于对静电纺纤维集合体的理解,为今后优化制备取向程度高、形态有序的纳米纤维集合体具有重要的指导意义和参考价值。

With the development and application of nanofibers in optoelectronic devices and flexible sensors,the demand for nanofibers is increasing day by day.There are various methods for the preparation of nanofiber aggregates,among which the preparation of directional nanofiber aggregates by electrospinning method is a popular research direction for the preparation of nanofibers with excellent performance.For the disordered structure and isotropic mechanical properties of electrospun nanofibers,the methods of preparing directional nanofiber bundles,yarns and nano-wrapped yarns with electrospinning are introduced systematically,and the principle sand characteristics of these methods are analyzed to help understand electrospun fiber aggregates.This study has important guiding significance and reference value for the future optimized preparation of nanofilber aggregates with high orientation degree and orderly morphology.