A Micro Pump Driven by Conducting Polymer Soft Actuator Based on Polypyrrole

Abstract

Micro pumps with various driving systems have been developed and they have been carried out with experimental and numerical approaches so far. The authors propose a micro pump with soft actuators by conducting polymers as a driving source. The purpose of the present study is to develop the micro pump driven by conducting polymer soft actuator based on polypyrrole and to clarify the basic characteristics of the micro pump. Especially, we measure the flow rates, delivery heads and energy consumption of the micro pump driven by conducting polymer soft actuators and compare these results with those of the conventional micro pumps. The micro pump driven by a conducting polymer soft actuator can transport fluids in one direction without backflow by two soft actuators with opening and closing movement. Furthermore, wider ranges of flow rates are obtained with this micro pump and greater maximum delivery heads are obtained by them Moreover, the influence of the viscosity of the transport fluid was small and the micro pump driven by the conducting polymer soft actuator can transport fluid even with the viscosity that is 400 times as great as that of water in addition. The energy consumption rates of our micro pump are dramatically lower than those of the conventional micro pumps. This is because a conducting polymer soft actuator drives with a low voltage and a micro pump with low energy consumption is realized here.