Electroactive influence of ferroelectric nanofillers on polyamide 11 matrix properties

被引：20

作者：

Capsal, Jean-Fabien ^{[1
]}

Dantras, Eric ^{[1
]}

Dandurand, Jany ^{[1
]}

Lacabanne, Colette ^{[1
]}

机构：

[1] Univ Toulouse 3, Inst Carnot, CIRIMAT, Lab Phys Polymer, F-31062 Toulouse, France

来源：

JOURNAL OF NON-CRYSTALLINE SOLIDS | 2007年 / 353卷 / 47-51期

关键词：

nanocomposites; pyroelectric; piezoelectric; relaxation;

D O I：

10.1016/j.jnoncrysol.2007.01.097

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Barium titanate ceramic powders have been incorporated in polyamide 11 to form homogeneous dispersion of particles in the matrix. Barium titanate/polyamide 11 nanocomposites have been synthesized using a solvent casting method with ultrasonic stirring to homogeneously disperse inclusions in the matrix. Composites with volume fraction of barium titanate phi ranging from 0.01 to 0.4 were elaborated. Films were fabricated using a hot press method. Only the inclusions were poled in the matrix to form a ferroelectric particles/unpoled matrix composite. Interactions between the particles and the matrix, pyroelectric and piezoelectric response were studied as a function of phi by dynamic dielectric spectroscopy. Composites show interesting pyro-piezoelectric activity. Pyroelectric merit factor increases linearly and it reaches a limit value of 0.3 for a volume fraction phi=0.1. (c) 2007 Elsevier B.V. All rights reserved.

引用

页码：4437 / 4442

页数：6

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