含磷聚酰亚胺的合成与抗原子氧性能

苏英霞; 王 凯; 詹茂盛

含磷聚酰亚胺的合成与抗原子氧性能

北京航空航天大学材料科学与工程学院, 北京 100191

基金项目: 中国航天科技集团公司航天科技创新基金资助项目; 国家自然科学基金资助项目(50803003)

详细信息

作者简介:
苏英霞(1984-),女,河北石家庄人,硕士生,wangkai@buaa.edu.cn.

中图分类号: V 255
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出版历程
- 收稿日期: 2008-06-04
- 网络出版日期: 2009-07-31

Synthesis and atomic oxygen resistance of phosphorus-containing polyimide

School of Materials Science and Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100191, China

摘要

摘要: 利用自行合成的含磷芳香族二胺单体——二(3-氨基苯基)苯基氧化磷(DAPPO),制备了一系列含磷聚酰亚胺薄膜.在原子氧地面模拟设备中对该薄膜进行了原子氧暴露实验,并采用场发射扫描电子显微镜(FE-SEM)和X射线光电子能谱(XPS)等分析手段对原子氧暴露前后薄膜表面的聚集态结构和化学结构演化进行了分析.结果表明,原子氧暴露后,引入含磷二胺单体的聚酰亚胺薄膜表面形成了富磷保护层,剥蚀率减小,抗原子氧性能明显提高, 磷质量分数为5.47%的聚酰亚胺薄膜在原子氧作用20h的总剥蚀率分别降低为Kapton^和Upliex-R型聚酰亚胺的13%和20%.
- 含磷二胺 /
- 原子氧 /
- 结构演化 /
- 聚酰亚胺
Abstract: A series of phosphorus-containing polyimide films were synthesized by a self made phosphorus-containing diamine, bis( m -aminophenyl)phenylphosphine oxide (DAPPO). The atomic oxygen (AO) resistance testes of films were carried out using a ground-based atomic oxygen effects simulation facility of Beijing University of Aeronautics and Astronautics. The effects of phosphorus content on the morphology and structure evolvement of polyimide films were investigated using a field emission scanning electron microscopy (FE-SEM) and X-ray photoelectron spectrometer (XPS) respectively. The results indicate that the Kapton^ and Upliex-R films were seriously damaged and formed lots of hill structure, but a phosphorus-rich layer was formed on the film based on the DAPPO after AO exposure, which decreased the erosion rate and obviously improved the AO resistance of the phosphorus-containing polyimide films, when the DAPPO content was 5.47% by weight, the erosion rate of phosphorus-containing polyimide film after 20 hour-AO exposure was only 13% and 20% of the Kapton^ and Upliex-R films.
- phosphorus-containing diamine /
- atomic oxygen /
- structure evolvement /
- polyimide

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