【摘要】 电致伸缩是指在外电场作用下电介质所产生的与场强二次方成正比的应变。近年来对聚氨酯电致伸缩性能的研究发现,聚氨酯弹性体综合了压电聚合物与传统的锆钛酸铅(PZT)压电陶瓷片的优点,具有很好的应用前景,本文简单介绍了聚氨酯的电致伸缩效应。更多还原

【Abstract】 Electrostriction is one of the electromechanical coupling effects of materials.It was strain that was proportional to the square of the driving electric field,and had been widely utilized in transducer,sensor and actuator technologies.In the paper,the kinds and structures of elecrostrictive polyurethane elastomers,the electrostriction and bending electrostriction in polyurethane elastomers were presented briefly.The applications and prospects were also introduced.更多还原