Composite piezoelectric material and application thereof: Fid-Bau Portal

Composite piezoelectric material and application thereof

YANG WANRONG

The invention discloses a composite piezoelectric material and application thereof. The composite piezoelectric material comprises barium titanate ceramic with a three-dimensional structure and a flexible polymer filled in the barium titanate ceramic, wherein the three-dimensional structure comprises a star-shaped structure and a cage-shaped structure which is connected with end points of the star-shaped structure and is formed by connecting a plurality of planes. According to the invention, the barium titanate ceramic with a three-dimensional structure is obtained through 3D printing, and the flexible polymer is filled in the pores of the barium titanate ceramic, so that the prepared composite piezoelectric material has excellent flexibility, and the composite piezoelectric material is ensured to have remarkable piezoelectric property and mechanical toughness; in addition, compared with barium titanate ceramic of a two-dimensional structure, the composite piezoelectric material has more excellent electrical performance and pressure induction.

本发明公开了一种复合压电材料及其应用，所述复合压电材料包括具有三维结构的钛酸钡陶瓷以及填充于所述钛酸钡陶瓷的柔性聚合物；其中，所述三维结构为包括米字型结构以及与所述米字型的端点连接且由多个平面连接组成的笼型结构。本申请通过3D打印获得具有三维结构的钛酸钡陶瓷，并将柔性聚合物填充于钛酸钡陶瓷孔隙中，使得制备的复合压电材料具有优异的柔性，且保证其具有显著的压电性能和机械韧性；另外，本申请的复合压电材料相比与二维结构的钛酸钡陶瓷具有更优异的电性能和压力感应。

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