A recently reported novel class of elastomers was tested with respect to its dielectric properties. The new elastomer material is based on a commercially available polydimethylsiloxane (PDMS) composition, which has been modified by embedding glycerol droplets into its matrix.The approach has two major advantages that make the material useful in a dielectric actuator. First, the glycerol droplets efficiently enhance the dielectric constant which can reach very high values in the composite. Second, the liquid filler also acts as a softener that effectively decreases the elastic modulus of the composite. In combination with very low cost and easy preparation, the two property enhancements lead to a very attractive dielectric elastomer material. Experimental permittivity data are compared to various theoretical models that predict relative-permittivity changes as a function of filler loading, and the applicability of the models is discussed.
|Number of pages||1|
|Publication status||Published - 2016|
|Event||6th International Conference on Electromechanically Active Polymer (EAP) Transducers & Artificial Muscles: 6th international conference - Helsingør, Helsingør, Denmark|
Duration: 14 Jun 2016 → 15 Jun 2016
|Conference||6th International Conference on Electromechanically Active Polymer (EAP) Transducers & Artificial Muscles|
|Period||14/06/2016 → 15/06/2016|
Mazurek, P. S., Yu, L., Skov, A. L., Gerhard, R., & Wirges, W. (2016). Glycerol as high-permittivity liquid filler in dielectric silicone elastomers. Poster session presented at 6th International Conference on Electromechanically Active Polymer (EAP) Transducers & Artificial Muscles, Helsingør, Denmark.