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Air Driven Electrospinning of CNT Doped Conductive Polymer Fibers for Electronics

Published online by Cambridge University Press:  28 August 2020

Emily A. Kooistra-Manning
Affiliation:
Montana Tech Nanotechnology Laboratory, 1300 W. Park St., Butte, MT, 59701, U.S.A. Mechanical Engineering Department, Montana Technological University, 1300 W. Park St., Butte, MT, 59701, U.S.A.
Lane G. Huston
Affiliation:
Montana Tech Nanotechnology Laboratory, 1300 W. Park St., Butte, MT, 59701, U.S.A. Mechanical Engineering Department, Montana Technological University, 1300 W. Park St., Butte, MT, 59701, U.S.A.
Jack L. Skinner
Affiliation:
Montana Tech Nanotechnology Laboratory, 1300 W. Park St., Butte, MT, 59701, U.S.A. Mechanical Engineering Department, Montana Technological University, 1300 W. Park St., Butte, MT, 59701, U.S.A.
Jessica M. Andriolo
Affiliation:
Montana Tech Nanotechnology Laboratory, 1300 W. Park St., Butte, MT, 59701, U.S.A. Mechanical Engineering Department, Montana Technological University, 1300 W. Park St., Butte, MT, 59701, U.S.A.
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Abstract

An electrostatic and air driven (EStAD) electrospinning device was used to achieve deposition of polymer fiber mats that carry electrical charge. The EStAD device does not require the polymer stream to contact a deposition electrode, thereby allowing enhanced control and processing versatility over production of conductive polymer materials. Direct current (DC) conductivity in the fiber mats was enabled through the use of a composite multi-walled carbon nanotube-polyethylene oxide (MWCNT-PEO) blend for electrospinning (ES). The electrospun fiber mats contained three different concentrations of MWCNTs. Conductivity and resistance were measured for each concentration as an electrospun fiber mat and compared to that of a drop-cast thin film. Results showed that at 7.51 wt% MWCNTs, conductivity in the electrospun fiber mats began to approach that of the drop-cast thin films at 1.76E-01 S/cm. At the lowest weight percent tested (3.37 wt%), conductivity was still measurable at approximately 8.48E-05 S/cm and was comparable to results reported previously using traditional ES methods.

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Articles
Copyright
Copyright © 2020 Materials Research Society

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