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Academic Journal of Engineering and Technology Science, 2024, 7(2); doi: 10.25236/AJETS.2024.070222.

Effect of adding different contents of nano-ZnO particles on the dielectric properties of polyacrylate composites


Wenyi Liu, Tian He

Corresponding Author:
Tian He

College of Mechanical and Electrical Engineering, Qingdao University, Qingdao, 266071, China


Dielectric elastomer (DE) is a kind of electrically driven flexible intelligent polymer material, the middle is an elastomer, the two sides are coated with flexible electrodes, after the driving voltage is applied on both sides, under the action of Maxwell stress, the elastomer will become thinner, the volume will be extruded and deformed, and the electrical energy will be converted into the mechanical energy of the dielectric elastomer doing external work and the elastic potential energy of the elastomer deformation. The elastomer material is typically polyacrylate, and unmodified acrylates typically have a low dielectric constant, requiring a higher drive voltage. In this study, polyacrylate (CN 9021NS) was used as the research object, and ZnO nanoparticles were added to polyacrylate (CN 9021NS) to study the effect of nano-ZnO particles on the dielectric properties of composites, and the frequency dependence of dielectric constant and dielectric loss was analyzed. The results show that the addition of ZnO nanoparticles to polyacrylate can effectively increase the dielectric constant of the composites, but it will also lead to an increase in dielectric loss. When the nano-ZnO particle content is 10 wt%, although it will lead to an increase in dielectric loss, the dielectric constant is the highest, which is 13.9, which is 1.94 times that of the elastomer prepared by the original CN 9021NS. The dielectric loss reaches 0.103, which is 1.69 times that of the original CN 9021NS elastomer. Due to the small base of dielectric losses, the dielectric losses of both nanoparticles are relatively low.


Dielectric Elastomers; Polyacrylates; Nanoparticles; Dielectric Properties

Cite This Paper

Wenyi Liu, Tian He. Effect of adding different contents of nano-ZnO particles on the dielectric properties of polyacrylate composites. Academic Journal of Engineering and Technology Science (2024) Vol. 7, Issue 2: 150-156. https://doi.org/10.25236/AJETS.2024.070222.


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