Property reinforcement of silicone dielectric elastomers filled with self-prepared calcium copper titanate particles
作者：Wang, Gen Lin(#)，Zhang, Yi Yang，Duan, Lei，Ding, Ke Hong，Wang, Zhi Feng，Zhang, Ming*
關鍵字：composites, dielectric properties, elastomers, mechanical properties, thermal properties
論文來源：期刊
具體來源：Journal of Applied Polymer Science
發表時間：2015年
In this article, submicron and micron calcium copper titanate (CCTO) crystallites with different morphologies were successfully designed and prepared by directly thermal treatment method and molten salt method, respectively. Then, the silicone elastomer filled with self-prepared CCTO particles had high dieletric constant, low dielectric loss, and actuated strain which was greatly improved at low electric field. The dieletric constant at 50 Hz obviously increased from 2.15 for pure silicone elastomer to 4.37 and 4.18 for the submicron and micron CCTO/poly (dimethyl siloxane) (PDMS) composites. The dielectric loss of the composites retained at a low value (less than 0.06). Meanwhile, the elastic modulus of CCTO/PDMS composites was increased slightly only with a good flexibility. Compared to pure silicone elastomer (2.25%), the submicron and micron CCTO/PDMS composites with 2 wt % content exhibited a greater strain of 7.69% and 9.83% at a low electric field of 5 V/μm.