Continuous bundles of aligned electrospun PAN nano-fiber using electrostatic spiral collector and converging coil

Jung Hun Lee, Dong Wook Shin, Ki Bong Nam, Yeong Hyeon Gim, Han Seo Ko, Dong Kyun Seo, Geon Hui Lee, Yong Hyup Kim, Sang Woo Kim, Tae Sik Oh, Ji Beom Yoo

Research output: Contribution to journalArticlepeer-review


We develop an advanced electrospinning process that uses an electrostatic spiral collecting coil and a converging coil to produce a polyacrylonitrile (PAN) polymer fiber with a nanometer-sized diameter. The electrostatic spiral collecting coil was used as a collector on which to deposit a continuous and aligned PAN polymer fiber, and the converging coil was used to adjust the collecting area of the fibers. The fiber bundles were continuously withdrawn from the spiral collector, and to estimate the behavior of the fibers, equipotential lines were calculated for the electrospinning system by using a 3D simulation program. A high-speed camera and a magnifying camera were used to observe the actual behavior of the fibers. In this study, the interval distance of the spiral collecting coil was adjusted to obtain bundles of with various diameters for use in various applications. The average diameter of the fibers is of about 250 nm, and the range of the average diameter of the bundles is between 30 μm and 120 μm. Among the fiber bundles, around 90 μm of the bundle was best well-aligned and its fracture force and strain strength were of around 80 mN and 12.6 MPa before the stabilization process.

Original languageEnglish
Pages (from-to)52-58
Number of pages7
Publication statusPublished - 2016 Feb 10

Bibliographical note

Funding Information:
This work was supported by “Human Resources Program in Energy Technology” of the Korea Institute of Energy Technology Evaluation and Planning (KETEP), granted financial resource from the Ministry of Trade, Industry and Energy , Republic of Korea. (No. 20154030200870 ).

Funding Information:
This work was supported by the National Research Foundation of Korea (NRF) grant funded by the Korea government (MSIP) (No. 2009-0083540 ).

Publisher Copyright:
© 2016 Elsevier Ltd. All rights reserved.

All Science Journal Classification (ASJC) codes

  • Organic Chemistry
  • Polymers and Plastics
  • Materials Chemistry


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