Journal
MATERIALS LETTERS
Volume 106, Issue -, Pages 56-58Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.matlet.2013.04.084
Keywords
Fiber technology; Needleless; Polymers; Electric field
Funding
- National Natural Science Foundation of China [50973014, 11172064]
- Foundation for the Author of National Excellent Doctoral Dissertation of P.R. China [200961]
- Shanghai Rising-Star Program in China [10QA1400100]
- Fok Ying Tong Education Foundation [121071]
- Program for New Century Excellent Talents in University [NCET-10-0322]
- Fundamental Research Funds for the Central Universities
- Shanghai Municipal Education Commission [11SG33]
- Shanghai Education Development Foundation [11SG33]
- Chinese Universities Scientific Fund [CUSF-DH-D-2013021]
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A novel approach to needleless electrospinning of nanofibers has been developed to increase the productivity of nanofibers. Multiple jets were observed to form on the edges of the stepped pyramid-shaped spinneret simultaneously. Compared with the traditional needle based electrospinning, nanofibers produced by the stepped pyramid-shaped spinneret were finer and an enhancement of more than 100 times over the traditionally obtained nanofibers productivity was obtained. The finite element analysis of electric field revealed a strong electric field gradient around the edges of the spinneret. The effect of applied voltage on nanofiber diameter and productivity were also explored. This novel design instrument avoids the possibility of clogging and will benefit to the development of needleless electrospinning. (C) 2013 Elsevier B.V. All rights reserved.
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