Characterization of Polydimethylsiloxane for Viscoelastic Properties of Using DMA

In the micropump, the diaphragm is a vital component and polydimethylsiloxane (PDMS) is used for fabricating the diaphragm. This PDMS is soft polymers and highly biocompatible compliant. For the micropump, the flow rate depends on swept volume which in turn depends on the diagram. Hence, the viscoelastic characterization of PDMS materials is a vital one. Accordingly, a viscoelastic characterization of PDMS is essential to investigate loss and storage moduli which have significant influence on diaphragm used in micropump applications. In the present study, PDMS layers of different proportions have been examined for loss and storage moduli using Dynamic Mechanical Analyzer (DMA).