Publication

Hanyang University HumanRobotics Lab

International Journal
Preparation of Chitosan Microfibres Using Electro-Wet-Spinning and Their Electroactuation Properties
Journal
Smart materials and structures
Vol
Vol. 15, No. 2
Page
pp. 607-611
Author
C. K. Lee, S. J. Kim, S. I. Kim, B.-J. Yi, and S. Y. Han
Year
2006
Date
2006.02.23
File
Preparation of Chitosan Microfibres Using Electro-Wet-Spinning and Their Electroactuation Properties.pdf (646.9K) 0회 다운로드 DATE : 2020-10-19 10:09:23
Abstract: Submicron chitosan fibres were prepared using an electro-wet-spinning process. The chitosan solution was ejected into a coagulation medium containing different concentrations of ethyl alcohol in aqueous sodium hydroxide (0, 30, 50 and 70% (v/v)). Submicron chitosan fibres were obtained using a coagulation medium containing 50% (v/v) of ethyl alcohol in an applied electric field of 15 kV with a 10 cm spinning distance. The density of the coagulation medium controlled the uniformity of the resulting fibres. When a swollen chitosan fibre hydrogel was placed between a pair of electrodes, it contracted in an applied electric field and showed a stepwise contraction behaviour that depended on the magnitude of the electrical stimulus. Chitosan fibre hydrogels showed a fast and reversible electroactuation under low applied potentials. This type of fibre has potential application in artificial muscles.