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论文类型：期刊论文

发表时间：2014-06-01

发表刊物：MATERIALS LETTERS

收录刊物：Scopus、EI、SCIE

卷号：124

页面范围：77-80

ISSN号：0167-577X

关键字：Electrospinning; Polymer; Nanofiber bundles; Microstructure; Tensile property

摘要：In this study, macroscopic polyamide 66 (PA66) nanofiber bundles were successfully electrospun using two electrode pins as collector. One of the pins can rotate with a speed of 300 rpm. Scanning electron microscope, tensile test, wide-angle X-ray diffraction and differential scanning calorimetry were employed to characterize the arrangement of electrospun nanofibers in bundle, tensile property and microstructure of electrospun nanofiber bundles. Results show that the collector pin's rotating speed not only significantly influences the arrangement of nanofibers in bundle but also the crystallinity and porosity of nanofiber bundles, which further influence the tensile strength and failure strain of nanofiber bundles. (C) 2014 Elsevier B.V. All rights reserved,