介电弹性材料驱动的大流量无阀微泵研究

Study of the valveless micropump driven by dielectric elastomer

在对基于介电弹性材料的无阀微泵流量分析基础上,从增加流量的角度出发,分析了结构参数对流量的影响规律,并对微泵泵膜预拉伸率及封装材料对微泵流量的影响进行了实验研究。实验结果表明,采用参数优选后的无阀微泵结构可使微泵的流量大幅度增加,可达到500的流量。该类型无阀微泵在生物医学等微流体系统中的应用具有广泛的前景。

The effect of structural parameters on the pumping performance of a kind of valveless micropump drinven by a kind of dielectric elastomer was studied in this paper.The improvement of diaphragms pre - stretched and different seal materials were investigated in order to achieve larger flow rate. According to the simulation and experimental data,the flow rate up to 500 can be obtained by parameter optimizing.This valveless micropump is useful for application of microfluidic system in biomedical fields.