JIN Li li1, E Shi ju2, CAO Jian bo2, LIU Ai fei1, JIANG Xiao qi1, GE Cai jun2, Zhu Xi lin2

 

(1. School of Mechanical and Electrical Engineering, Lanzhou Jiaotong University, Lanzhou 730070, China;

 

2. College of Engineering, Zhejiang Normal University, Jinhua 321000, China)

 

 

Abstract: Aiming at the relevant research advancing and the existing problems of dielectric elastomer material, the performance of dielectric elastomers fundamentally were analyzed. The property and preparation methods of materials and composite materials such as silicone rubber, polyurethane, acroleic acid and so on were studied according to their different types. The concrete application and future trend of development about power generation, bionics, biomedicine, optical devices, micro systems, aerospace aviation in recent years were analyzed according to the different applications of dielectric elastomer. The related issues of dielectric elastomer in the future applications about the preparation of thin film, the covering insulation of flexible electrode material, the limitation of bias high voltage source, the decrease of energy loss and the increase of electromechanical conversion efficiency were summarized. Some corresponding suggestions and ideas for future development aiming at the above problems were proposed. The results indicate that the dielectric elastomer has broad application prospect, but there are still many technical difficulties, and it shall be deeply studied in the aspects of the material composition of elastomer matrix, the material optimization of flexible electrode, the self filling for power generation and the efficiency optimization and so on.

 

Key words: dielectric elastomer; dielectric constant; composites; preparation method