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�������պ����ѧѧ�� 2012, Vol. 38 Issue (5) :601-604    DOI:
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Preparation and atomic oxygen resistance of polyimide/inorganic oxide composite films
Wang Kai, Xiao Fei, Zhan Maosheng*
School of Materials Science and Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100191, China

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Abstract�� Three series of polyimide/inorganic oxide composite films were synthesized through sol-gel method using zirconium n-butoxide, tetrabutyl titanate and tetraethyl orthosilicate as the oxide precursor, respectively. The atomic oxygen (AO) resistance testes of the films were carried out using a ground-based atomic oxygen effects simulation facility. The atomic oxygen fluence is about 3.1?1020 atom/cm2. The results indicate that the dispersing status of inorganic oxides will affect on the mechanical properties of polyimide films dramatically, and the inorganic oxides-rich layer is formed on the polyimide film after AO exposure, which decreases the mass loss rate and improves the AO resistance of polyimide films obviously.
Keywords�� atomic oxygen   LEO(low earth orbit)   polyimide   zirconium n-butoxide   tetrabutyl titanate   tetraethyl orthosilicate     
Received 2011-01-04;
Fund:������Ȼ��ѧ����������Ŀ(50803003)
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����, Ф��, ղïʢ.�����ǰ�/�޻������︴�ϱ�Ĥ���Ʊ�����ԭ��������[J]  �������պ����ѧѧ��, 2012,V38(5): 601-604
Wang Kai, Xiao Fei, Zhan Maosheng.Preparation and atomic oxygen resistance of polyimide/inorganic oxide composite films[J]  JOURNAL OF BEIJING UNIVERSITY OF AERONAUTICS AND A, 2012,V38(5): 601-604
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http://bhxb.buaa.edu.cn//CN/     ��     http://bhxb.buaa.edu.cn//CN/Y2012/V38/I5/601
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