查找使用阿拉丁产品的科研文献

Preparation and excellent dielectric properties of flexible Ba0.7Sr0.29La0.01TiO3 composite fiber ceramics

Wang Yuping,Dong Qing,Shi Shuying,Zhang Xiaoqian,Zhu Ze,Guo Zhenfeng,Chow Yuk Tak,Wang Xinqiang,Zhang Guanghui,Zhu Luyi,Xu Dong

Ba 0.7 Sr 0.29 La 0.01 TiO 3 (BSLT) fibers with good crystallinity were prepared by the electrospinning method, and the flexible BSLT/PVDF composite membranes were prepared by a simple papermaking process. The fiber exhibited good fiber morphology after being heat-treated to 900 °C. The composite membrane showed strong tensile strength and excellent dielectric properties. The tensile strength of the 20% PVDF composite membrane was 2.66 times that of pure BSLT membrane. Fiber membrane after compounding with PVDF maintained high dielectric constant ε r with a small dielectric loss tan δ . It has good frequency stability in the range of 100 Hz to 100 kHz. The dielectric constant of 20% PVDF composite fiber membrane could still reach 49.5 ( f  = 1000 Hz). The dielectric constant and dielectric loss maintained good stability in the range of 40 to 160 °C. The dielectric constant and dielectric loss of the prepared fiber membrane possessed more stable temperature stability and frequency stability than those of barium titanate-based/organic polymer membranes prepared by other methods.