Carbon black-BaTiO3/silicone rubber electroactive nanocomposites with large strain coefficient
High driving fields have blocked the development of dielectric elastomers from practical applications. Keeping high dielectric permittivity but low modulus of the elastomers is a prospect way to reduce the driving field. In this letter, carbon black-BaTiO3/liquid-state silicone rubber (CB-BT/RTV) three-component electroactive nanocomposites were fabricated by simple blending method. Results showed that both CB and BT particles were well-dispersed in silicone rubber matrix. Percolation appeared when the volume fraction of CB (fCB) was 0.039(in BT enforced RTV matrix having fBT=0.07). A remarkably increase of strain coefficient K was discovered at this critical point. The three-component electroactuation nanocomposites with large K could reduce the driving field dramatically and have potential applications as artificial muscle and electric actuator.
electrostriction dielectric elastomer strain coefficient nanocomposites dielectric properties
Yujuan XIA Zhimin DANG Junwei ZHA Hongtao SONG Changyong SHI Jinbo BAI
Key Laboratory of Beijing City on Preparation and Processing of Novel Polymer Materials, Beijing Uni Beijing University of Clothing Technology, Beijing 100029, CHINA Laboratoire MSSMAT, Ecole Centrale Paris, Paris, 92295, FRANCE
国际会议
哈尔滨
英文
793-795
2009-07-19（万方平台首次上网日期，不代表论文的发表时间）