中国物理B ›› 2014, Vol. 23 ›› Issue (3): 37701-037701.doi: 10.1088/1674-1056/23/3/037701

• CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES • 上一篇    下一篇

Effect of heating treatment on trap level distribution in polyamide 66 film electrets

徐佩a b, 张兴元a   

  1. a Chinese Academy of Sciences (CAS) Key Laboratory of Soft Matter Chemistry, Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei 230026, China;
    b School of Chemical Engineering, Hefei University of Technology, Hefei 230009, China
  • 收稿日期:2013-05-21 修回日期:2013-07-18 出版日期:2014-03-15 发布日期:2014-03-15
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant No. 20974108), the Natural Science Foundation of Anhui Province, China (Grant No. 1308085QB40), the Fundamental Research Funds for the Central Universities of Ministry of Education of China (Grant Nos. 2013HGQC0016 and 2011HGBZ1323).

Effect of heating treatment on trap level distribution in polyamide 66 film electrets

Xu Pei (徐佩)a b, Zhang Xing-Yuan (张兴元)a   

  1. a Chinese Academy of Sciences (CAS) Key Laboratory of Soft Matter Chemistry, Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei 230026, China;
    b School of Chemical Engineering, Hefei University of Technology, Hefei 230009, China
  • Received:2013-05-21 Revised:2013-07-18 Online:2014-03-15 Published:2014-03-15
  • Contact: Zhang Xing-Yuan E-mail:zxym@ustc.edu.cn
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant No. 20974108), the Natural Science Foundation of Anhui Province, China (Grant No. 1308085QB40), the Fundamental Research Funds for the Central Universities of Ministry of Education of China (Grant Nos. 2013HGQC0016 and 2011HGBZ1323).

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摘要： The effect of heating treatment on the trap level distribution in polyamide 66 film electret is studied by thermally stimulated depolarization current (TSDC) technique. For annealed polyamide 66, there are three trap levels that respectively originate from space charge trapped in amorphous phase, interphase and crystalline phase. There is one peak that originates from space charge trapped in amorphous phase for quenched one. Using multi-point method to fit the experimental curves, the detrapping current peaks can be separated and the trap depth is obtained. The shallower trap levels trapped in amorphous phase and interphase are obviously close to the deeper trap level trapped in crystalline phase for annealed polyamide 66 as the polarization temperature increases, while the trap level distribution remains unaffected by polarization temperature for quenched one.

关键词: polyamide 66, film electret, thermally stimulated depolarization current, heating treatment

Abstract: The effect of heating treatment on the trap level distribution in polyamide 66 film electret is studied by thermally stimulated depolarization current (TSDC) technique. For annealed polyamide 66, there are three trap levels that respectively originate from space charge trapped in amorphous phase, interphase and crystalline phase. There is one peak that originates from space charge trapped in amorphous phase for quenched one. Using multi-point method to fit the experimental curves, the detrapping current peaks can be separated and the trap depth is obtained. The shallower trap levels trapped in amorphous phase and interphase are obviously close to the deeper trap level trapped in crystalline phase for annealed polyamide 66 as the polarization temperature increases, while the trap level distribution remains unaffected by polarization temperature for quenched one.

Key words: polyamide 66, film electret, thermally stimulated depolarization current, heating treatment

中图分类号:  (Dielectric properties of solids and liquids)

  • 77.22.-d
73.50.Gr (Charge carriers: generation, recombination, lifetime, trapping, mean free paths) 73.61.Ph (Polymers; organic compounds)