Chemically Driven Polyacrylonitrile Fibers as a Linear Actuator

Abstract:

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A pH sensitive polyacrylonitrile (PAN) fiber, exhibiting soft actuation as a linear actuator, is prepared by electrospinning to investigate the optimum experimental condition of the as-spun fibers and the effect of pH variation on length change of PAN gel fiber. Unbeaded smooth and continuous PAN nanofibers with diameter of ~700 nm are obtained for the 10 wt% PAN fibers at a flow rate of 0.5 mL/h and an electric field of 0.875 kV/cm, suggesting that the value of viscosity is the most significant on the fiber morphology. Diameter and volume changes of PAN filaments are observed as greater than 100% and greater than 720%, respectively for pH activated systems. A typical hysteresis loop is observed for the length change (~38%) of PAN gels with respect to pH variation.

Info:

Periodical:

Solid State Phenomena (Volumes 124-126)

Edited by:

Byung Tae Ahn, Hyeongtag Jeon, Bo Young Hur, Kibae Kim and Jong Wan Park

Pages:

1197-1200

DOI:

10.4028/www.scientific.net/SSP.124-126.1197

Citation:

S. J. Lee et al., "Chemically Driven Polyacrylonitrile Fibers as a Linear Actuator", Solid State Phenomena, Vols. 124-126, pp. 1197-1200, 2007

Online since:

June 2007

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Price:

$35.00

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