| 초록 |
Polypyrrole(PPy) is a conducting polymer(CP) that undergoes volume expansion or contraction when the oxidation level is changed. This change in volume related to insertion or expulsion of ions has been utilized for actuation and is attractive because it can be controlled electrochemically. Their fascinating features as actuators are large strain, light weight, and low voltages for actuation. In the development of CP actuators, most effort has been concentrated on improving the strain and response time. However although major advances in actuator performances have been obtained in the last few years, the actuation of CP actuator is still limited to bending movement in liquid electrolyte. It restricts the application of CP actuator in semiconductor devices, position control devices, and medical instruments. So in this study, spring type CP actuator which can produce linear movement using two PPy films having different actuation mechanism and solid polymer electrolyte(SPE) were prepared. |
