期刊
CHINESE PHYSICS B
卷 21, 期 4, 页码 -出版社
IOP PUBLISHING LTD
DOI: 10.1088/1674-1056/21/4/048102
关键词
nanofibers; near-field electrospinning; beaded-fibers
资金
- National Natural Science Foundation of China [11074138, 11004114, 50973098]
- Natural Science Foundation of Shandong Province [JQ201103]
- National Key Basic Research Development Program of China [2012CB722705]
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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