CHARGE STABILITY OF TPX FILM ELECTRETS

被引：14

作者：

IKEZAKI, K

IRITANI, K

NAKAMURA, T

HORI, T

机构：

[1] Faculty of Science and Technology, Keio University, Yokohama

[2] Tokyo Technical Research Lab., Mita Industrial Co. Ltd., Tokyo

来源：

JOURNAL OF ELECTROSTATICS | 1995年 / 35卷 / 01期

关键词：

D O I：

10.1016/0304-3886(95)00017-5

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Charge stability of poly (4-methyl-1-pentane) (TPX) film electrets was evaluated by observing their isothermal surface potential decay under various environmental conditions. Observed results were compared with those of polypropylene and polyethylene electrets. TPX electrets were extremely stable in humid atmosphere, while they rapidly decayed when exposed to acetone or cyclohexane vapours. For TPX electrets exposed to acetone vapour, temporary decrease and recovery in the surface potential were found. These phenomena were explained in terms of a screening effect of acetone molecules on the trapped charges in the electrets.

引用

页码：41 / 46

页数：6