VAPOR-INDUCED DEPOLARIZATION CURRENTS IN ELECTRETS

被引:21
作者
CANTALOUBE, B
DREYFUS, G
LEWINER, J
机构
关键词
D O I
10.1002/pol.1979.180170109
中图分类号
O63 [高分子化学(高聚物)];
学科分类号
070305 ; 080501 ; 081704 ;
摘要
The charge decay of polymer electrets in the presence of solvent vapor is analyzed. In order to account for this phenomenon, several hypotheses are considered and tested experimentally. It is shown that the penetration of the solvent is responsible for the observed charge decay, and that it is the rate limiting factor. Moreover, the phenomenon is not due to the screening of the injected charges, but to the motion of these charges, which are liberated by the penetration of the solvent. Finally, the possible applications of this phenomenon in investigations on both the microscopic and macroscopic scale are outlined.
引用
收藏
页码:95 / 101
页数:7
相关论文
共 7 条
[1]   DISSOLUTION OF POLYPROPYLENE IN ORGANIC-SOLVENTS .1. PARTIAL DISSOLUTION [J].
BLACKADDER, DA ;
LEPOIDEVIN, GJ .
POLYMER, 1976, 17 (05) :387-394
[2]   MEASUREMENT OF CHARGE-DISTRIBUTION IN ELECTRETS [J].
COLLINS, RE .
REVIEW OF SCIENTIFIC INSTRUMENTS, 1977, 48 (01) :83-91
[3]  
CRANK J, 1968, DIFFUSION POLYM, P75
[4]   ZERO-CURRENT ELECTROMETER METHOD AND ITS APPLICATION TO CHARGE-DECAY MEASUREMENTS [J].
DREYFUS, G ;
LEWINER, J .
JOURNAL OF APPLIED PHYSICS, 1974, 45 (02) :721-726
[5]   NEW PRINCIPLE FOR DETERMINATION OF POTENTIAL DISTRIBUTIONS IN DIELECTRICS [J].
LAURENCEAU, P ;
DREYFUS, G ;
LEWINER, J .
PHYSICAL REVIEW LETTERS, 1977, 38 (01) :46-49
[6]   DETERMINATION OF SPATIAL-DISTRIBUTION OF CHARGES IN THIN DIELECTRICS [J].
SESSLER, GM ;
WEST, JE ;
BERKLEY, DA ;
MORGENSTERN, G .
PHYSICAL REVIEW LETTERS, 1977, 38 (07) :368-371
[7]  
van Turnhout J., 1975, THERMALLY STIMULATED