《化学和黏合》
 
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2018年 先后5希望

有导电及抗原子氧性能的复合薄膜制备及性能
曲春艳,李辽辽,刘长威,王德志
(葡京游戏平台官方网站 石油化学研究院,黑龙江 哈尔滨 150040)
选择 如果:聚酰亚胺薄膜因其优良的耐热性和绝缘性在航空航天应用广泛,但是那易在没有地球轨道受到原子氧的损害,如果其位优异性能退化至丧失。首先用原位自金属化法对聚酰亚胺薄膜进行开环刻蚀、离子交换和热还原后,筹备出PI/Ag的复合薄膜,根据PI/Ag的复合薄膜结合刮涂的方法在表面引入抵抗原子氧侵蚀的带有硅聚酰亚胺,所以制备出个别种浓度的PI/Ag/Si-PI复合薄膜。连对那进行XPS, SEM和抗原子氧辐照测试等特征,结果发现PI/Ag/Si-PI复合薄膜具有良好的抗原子氧性能,还较高浓度的效用更佳。外面Si-PI在原子氧辐照过程中形成致密的SiO2来进一步抵原子氧的损害,所以保护和其紧挨着的下层及导电银层,所以保证了有导电及抗原子氧性能的复合薄膜。
关键词:复合薄膜;抗原子氧;聚酰亚胺;质量损失
  受到图分类号:O 631.31;TQ 317.6 文献标识码:A 文章编号:1001–0017 (2018)05–0318-04

The Preparation and Performance of Composite Films with both Conductivity and Anti-atomic Oxygen Properties.

QU Chun-yan, LI Liao-liao, LIU Chang-wei and WANG De-zhi

(Institute of Petrochemistry, Heilongjiang Academy of Sciences, Harbin 150040, China)

Abstract: The polyimide film is widely used in the aerospace because of its good heat resistance and insulation. But it is vulnerable to the atomic oxygen erosion in low earth orbit and it will make its various outstanding performances degrade to lose finally. At first, the method of in situ self-metallization is adopted for the process of ring opening etching, ion exchanging and thermal reduction of polyimide to prepare PI/Ag composite film. Then based on the PI/Ag composite film combined with blade coating, the polyimides containing silicon which possesses the atomic oxygen erosion resistance is introduced on the surface, thus the PI/Ag/Si-PI composite films with two kinds of concentrations are prepared. The products are characterized by XPS, SEM and anti-atomic oxygen radiation test and the results show that the PI/Ag/Si-PI composite films have better anti-atomic oxygen performance and the higher concentration, the better effect they have. The Si-PI on the surface layer will form the compact SiO2 in the process of atomic oxygen irradiation to further resist the atomic oxygen erosion, thus to protect the lower layer next to it and the conductive silver layer, so as to ensure both the conductivity and atomic oxygen resistance of the composite films.

Key words: Composite film; atomic oxygen resistance; polyimide; mass loss

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