摘要
研究经拉伸及极化处理的PVDF薄膜在室温附近的压电驰豫效应,发现在施力状态下及撤力后的自由状态下样品释放的电荷均遵守自由驰豫规律,考虑到PVDF与铁电陶瓷空间电荷分布的相似性,以及结晶高聚物的多相性,上述现象可以解释。
The Long time piezoelectric relaxation in the drawn and poled film of PVDF near room temperature has been studied. In a state of force and free behind the force is removed, the released charges from sample obey the rule of the free relaxationOn the basis of the similarity between the distribution of space charges of PVDF and ferroelectric ceramics, and the polyphase behavior of semicrystalline polymer, the above phenomenon can be explained
出处
《湖北师范学院学报（自然科学版）》
1990年第1期54-58,共5页
Journal of Hubei Normal University(Natural Science)
关键词
PVDF
压电驰豫
空间电荷
多相性
PVDF, piezoelectric relaxation, Space charge, Polyphase.
