Polymer nanofibers prepared by low-voltage near-field electrospinning |
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Authors: | Zheng Jie Long Yun-Ze Sun Bin Zhang Zhi-Hua Shao Feng Zhang Hong-Di Zhang Zhi-Ming and Huang Jia-Yin |
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Institution: | [1]College of Physics Science, Qingdao University, Qingdao 266071, China [2]State Key Laboratory Cultivation Base of New Fiber Materials and Modern Textile, Qingdao University, Qingdao 266071, China [3]College of Chemistry and Chemical Engineering, Ocean University of China, Qingdao 266100, China |
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Abstract: | Electrospinning is a straightforward method to produce micro/nanoscale fibers from polymer solutions typically using an operating voltage of 10 kV–30 kV and spinning distance of 10 cm–20 cm. In this paper, polyvinyl pyrrolidone (PVP) non-woven nanofibers with diameters of 200 nm–900 nm were prepared by low-voltage near-field electrospinning with a working voltage of less than 2.8 kV and a spinning distance of less than 10 mm. Besides the uniform fibers, beaded-fibers were also fabricated and the formation mechanism was discussed. Particularly, a series of experiments were carried out to explore the influence of processing variables on the formation of near-field electrospun PVP nanofibers, including concentration, humidity, collecting position, and spinning distance. |
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Keywords: | nanofibers near-field electrospinning beaded-fibers |
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