硅橡胶基与取向压电陶瓷颗粒厚复合材料的弹性和压电性

IF 2.1 4区材料科学 Q3 MATERIALS SCIENCE, COMPOSITES

Plastics, Rubber and Composites Pub Date : 2021-04-26 DOI:10.1080/14658011.2021.1918986

Shogo Mamada, Tatsuya Ohta, M. Yamato

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引用次数: 0

摘要

“对齐型”压电橡胶是压电陶瓷和锆钛酸铅(PZT)颗粒的复合材料，它们在硅橡胶基体中排列。对准型压电橡胶具有弹性和压电性。PZT，一种压电陶瓷，没有弹性。此外，压电聚合物，如聚偏二氟乙烯(PVDF)有弹性，但只能形成薄膜。传统的对准型压电橡胶(CAT)厚度约为2毫米，具有很高的弹簧常数。为此，采用“反转法”制备了厚度为10 mm的厚对直型压电橡胶(TAT)。TAT可以将弹簧常数降低到CAT的1/5以下，同时保持与CAT等效的压电性(d33)。TAT的d33是PVDF的2倍以上，杨氏模量小于PVDF的1/200。

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The elasticity and the piezoelectricity of thick composites of silicone rubber matrix and aligned piezoelectric ceramic particles

ABSTRACT ‘Aligned-type’ piezoelectric rubber is a composite of piezoelectric ceramic, lead zirconate titanate (PZT) particles, which are aligned in a silicone rubber matrix. The aligned-type piezoelectric rubber has both elasticity and piezoelectricity. PZT, a piezoelectric ceramic, does not have elasticity. Also, piezoelectric polymers such as polyvinylidene difluoride (PVDF) have elasticity but can only form a thin film. The conventional aligned-type piezoelectric rubber (CAT) is as thin as about 2 mm, has a high spring constant. Therefore, a thick aligned-type piezoelectric rubber (TAT), having a thickness of 10 mm was fabricated by a new method, the “inversion method”. The TAT was possible to reduce the spring constant to less than 1/5 of that of the CAT while maintaining the piezoelectricity (d33) equivalent to the CAT. Also, the d33 of the TAT is more than twice that of PVDF, and it is Young’s modulus is less than 1/200 that of PVDF.

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来源期刊

Plastics, Rubber and Composites 工程技术-材料科学：复合

CiteScore

4.10

自引率

0.00%

发文量

审稿时长

4 months

期刊介绍： Plastics, Rubber and Composites: Macromolecular Engineering provides an international forum for the publication of original, peer-reviewed research on the macromolecular engineering of polymeric and related materials and polymer matrix composites. Modern polymer processing is increasingly focused on macromolecular engineering: the manipulation of structure at the molecular scale to control properties and fitness for purpose of the final component. Intimately linked to this are the objectives of predicting properties in the context of an optimised design and of establishing robust processing routes and process control systems allowing the desired properties to be achieved reliably.