Electrospun self-assembled nanofiber yarns

✍ Scribed by Abhijit Mondal; Ritutapan Borah; Avishek Mukherjee; Sandip Basu; Manjeet Jassal; Ashwini K. Agrawal

• Book ID: 101589478
• Publisher: John Wiley and Sons
• Year: 2008
• Tongue: English
• Weight: 274 KB
• Volume: 110
• Category: Article
• ISSN: 0021-8995
• DOI: 10.1002/app.28673

✦ Synopsis

Abstract

A technique for making self‐assembled electrospun (E‐spun) nanofiber yarns from poly(acrylonitrile) in a single step is described. The process involved formation of the nanofiber yarn directly within the electrospinning zone and its removal before it can reach the counter‐electrode. The yarn is presumably formed due to splitting of the main jet into numerous nanojets and their reassembly into a single entity midway between the two electrodes. The process was found to occur at a particular field strength, which varied considerably with the concentration of the polymer dope. The gross morphology of yarns and the alignment of nanofibers in the yarn were evaluated by scanning electron microscopy (SEM). The rationale behind the formation of the yarn like structure has been explained. © 2008 Wiley Periodicals, Inc. J Appl Polym Sci, 2008