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�������պ����ѧѧ�� 2011, Vol. 37 Issue (2) :180-184    DOI:
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�����, ֣��Ȫ, ��ʢ��, ����*
������ͨ��ѧ �����豸������Ե�����ص�ʵ����, ���� 710049
Internal charging protection technology of typical space polymer dielectric material
Wang Jinfeng, Zheng Xiaoquan, Li Shengtao, Bai Jingjing*
State Key Laboratory of Electrical Insulation and Power Equipment, Xi’an Jiaotong Univevsity, Xi’an 710049, China

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Abstract�� Besides efficient shield,the best method for eliminating the pulsed discharge induced by the deep charge of spacecraft dielectric was to use dielectric materials or insulation structural components that never produce any pulsed discharges. By non-linearity modification experiment research on several typical polymer dielectrics like Polyimide,Epoxide resin and Teflon, it was found that through the addition of the inorganic powder that possess a conductivity much higher than that of the polymer, the composite dielectric material would produce a remarkable non-linearity conductance character. By this way,the excessive charges would be discharged as a method of non-pulsed conducting current before the deep dielectric charging reaches the discharge threshold. It was proved that, even the normal resistance could be increased by this method. Finally, the mechanism on the non-linearity conductance of the composite material was investigated.
Keywords�� space aircraft dielectrics   modification   non-linearity conductivity   internal charged protection     
Received 2009-12-11;

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About author: �����(1984-),��,���������,��ʿ��, xc.wangjf@stu.xjtu.edu.cn.
�����, ֣��Ȫ, ��ʢ��, ����.���Ϳռ�ۺ�����ʵĿ��ڴ�����Լ���[J]  �������պ����ѧѧ��, 2011,V37(2): 180-184
Wang Jinfeng, Zheng Xiaoquan, Li Shengtao, Bai Jingjing.Internal charging protection technology of typical space polymer dielectric material[J]  JOURNAL OF BEIJING UNIVERSITY OF AERONAUTICS AND A, 2011,V37(2): 180-184
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