New type of piezo-damping epoxy-matrix composites with multi-walled carbon nanotubes and lead zirconate titanate

被引：54

作者：

Tian, Sheng ^{[1
]}

Cui, Fangjin ^{[1
]}

Wang, Xiaodong ^{[1
]}

机构：

[1] Beijing Univ Chem Technol, Sch Mat Sci & Engn, Key Lab Beijing City Preparat & Proc Novel Polyme, Beijing 100029, Peoples R China

来源：

MATERIALS LETTERS | 2008年 / 62卷 / 23期

关键词：

piezo-damping materials; carbon nanotubes; piezoelectric ceramic; electrical conductivity; loss factor;

D O I：

10.1016/j.matlet.2008.05.003

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A new type of rigid piezo-damping epoxy-matrix composites containing multi-walled carbon nanotubes (CNT) and piezoelectric lead zirconate titanate (PZT) was prepared, and the electrical and the damping properties were investigated. Dynamic mechanical thermal analysis reveals that the loss factors of the composites were improved by incorporation of PZT and CNT under the concentration above a critical electrical percolation. Based on this piezo-damping material, the PZT contributes to the transformation of mechanical noise and vibration energies into electric energy, while the CNT serve in the shorting of the generated electric current to the external circuit. An optimum formulation for the piezo-damping epoxy-based materials can be designed on the basis of the results of this study. (C) 2008 Elsevier B.V. All rights reserved.

引用

页码：3859 / 3861

页数：3

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