Rotation of charged polymer particles for potential applications in micro-propulsion systems
- Rotation of charged polymer particles for potential applications in micro-propulsion systems
- 최웅수; 도태구; 정영균; 전영상; 박용성; 고영건
- Issue Date
- Journal of Materials Chemistry C
- VOL 8, NO 46-16348
- The possibility of an interelectrode oscillation behavior of dielectric dispersoids in colloidal dispersion by electric stimuli has been suggested but has not yet been reported. Here, we present a strategy for inducing the oscillation behavior based on dielectric constant (e)-matching and conductivity (s)-mismatching techniques between the dispersoids and dispersion medium. One of the electrophoresisbased bio-microparticles, Nannochloropsis gaditana (N. gaditana, e E 2.9？3.7), and olive oil, which has a similar dielectric constant (e E 3.1), were selected as dispersoid and dispersion medium, respectively. The conductivity mismatch was formed by controlling the temperature of the suspension. As the temperature increased from 25 to 50, 75, and 100 1C, the conductivity mismatch increased exponentially from 0.20 to 0.57, 2.17, and 11.95 ( 104 mS m1 ). The anaphoretic separation behavior of the dispersoids by electric stimuli, which was shown at 25 1C, changed to interelectrode oscillation behavior at 100 1C due to their high conductivity mismatch, as we expected.
- Appears in Collections:
- KIST Publication > Article
- Files in This Item:
There are no files associated with this item.
- RIS (EndNote)
- XLS (Excel)
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.