The electret effect in polypropylene fibers treated in a corona discharge

被引：0
作者：
Kravtsov, A
Brünig, H
Zhandarov, S
Beyreuther, R
机构：
[1] Polymer Res Inst, D-01069 Dresden, Germany
[2] Natl Acad Sci Belarus, Met Polymer Res Inst, Gomel 246652, BELARUS
来源：
ADVANCES IN POLYMER TECHNOLOGY | 2000年 / 19卷 / 04期
关键词：
D O I：
10.1002/1098-2329(200024)19:4<312::AID-ADV7>3.0.CO;2-X
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
In this work, melt-spun polypropylene (PP) fibers were treated in an electric field of a corona discharge. The fibers were then characterized using the thermally stimulated current (TSC) spectroscopy. It has been shown that the electret state of corona-treated PP fibers is a result of the combination of Maxwell-Wagner polarization and charge trapping. Activation energies and relaxation times for these processes have been determined, and characteristics of trapping sites have been calculated. The electret state induced in PP fibers by the corona discharge treatment holds for a long time (several months). Our analysis of the effect of processing temperature and electric field intensity on the characteristics of the electret state in melt-spun PP fibers allows one to specify optimum technological regimes for industrial production of PP-based electret: filter materials. (C) 2000 John Wiley & Sons, Inc.
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页码：312 / 316
页数：5
相关论文
共 17 条
  • [1] BEYREUTHER R, 1974, FASER TEXTILTECHNIK, V25, P483
  • [2] BEYREUTHER R, 1996, POLYM MAT ENCY SYNTH, V6, P4061
  • [3] BEYREUTHER R, 1985, TEXTILTECHNIK, V35, P76
  • [4] BEYREUTHER R, 1992, MELLIAND TEXTILBERIC, V73, P363
  • [5] Brown R.C., 1993, AIR FILTRATION INTEG, DOI DOI 10.1016/0021-8502(95)90072-1
  • [6] FILLARD JP, 1977, THERMALLY STIMULATED
  • [7] FREDERICK ER, 1996, UTILIZING ELECT EFFE
  • [8] GALOP M, 1997, THERMOLD PARTNERS CO
  • [9] GILLES MT, 1979, NONWOVEN MAT
  • [10] GOROKHVATSKII YA, 1981, BASICS THERMAL DEPOL
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