Electrostrictive properties of polyurethane elastomers

被引：0

作者：

Wu, Jianfeng ^{[1
]}

Li, Jianqing ^{[1
]}

Song, Aiguo ^{[1
]}

Lin, Baoping ^{[2
]}

Cong, Yuqi ^{[2
]}

Huang, Weisheng ^{[2
]}

机构：

[1] School of Instrument Science and Engineering, Southeast University, Nanjing 210096, China

[2] School of Chemistry and Chemical Engineering, Southeast University, Nanjing 210096, China

来源：

Dongnan Daxue Xuebao (Ziran Kexue Ban)/Journal of Southeast University (Natural Science Edition) | 2008年 / 38卷 / 03期

关键词：

Barium titanate - Charge transfer - Doping (additives) - Elastomers - Electric fields - Electrostriction - Hardness - Mathematical models - Nanocomposites - Permittivity - Strain;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

For increasing the electrostrictive properties of materials, different mass proportion BaTiO3/polyurethane nanocomposite elastomers(PUE) are prepared. LCR test instrument, Shore hardness test instrument and capacitive electrostrictive properties test device are used to test the effect of doped PUE. The results show that, with the increase of doped proportion, the dielectric constant and the hardness increase but restoration speed decreases. It is found that low content doping can increase the electrostrictive strain of the PUE, while more doping will depress the electrostrictive strain. PUE with 6% content shows a greastest electrostrictive strain. The charge transference percolation model(CTPM) is proposed which can explain bending, critical electric field reverse expanding, and high doping spring phenomena of BaTiO3/PU nanocomposite elastomers.

引用

页码：439 / 443