| 空间聚四氟乙烯的真空紫外辐射及其与原子氧的复合效应研究 |
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| 引用本文： | 赵小虎,沈志刚,邢玉山,麻树林.空间聚四氟乙烯的真空紫外辐射及其与原子氧的复合效应研究[J].中国航空学报,2004,17(3):181-186. |
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| 作者姓名： | 赵小虎 沈志刚 邢玉山 麻树林 |
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| 作者单位： | School of Aeronautics Science and Engineering，Beijng University of Aeronautics and Astronautics，Beijing 100083，China，School of Aeronautics Science and Engineering，Beijng University of Aeronautics and Astronautics，Beijing 100083，China，School of Aeronautics Science and Engineering，Beijng University of Aeronautics and Astronautics，Beijing 100083，China，School of Aeronautics Science and Engineering，Beijng University of Aeronautics and Astronautics，Beijing 100083，China |
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| 摘 要： | 聚四氟乙烯是航天器上常用的一种聚合物材料。在空间环境效应地面模拟试验设备中 ,对这种材料开展了真空紫外辐射、真空紫外辐射与原子氧复合效应的试验研究 ,总结和分析了试验前后试样外观、质量、光学参数和表面成分等方面的变化规律 ,并对真空紫外辐射及其与原子氧复合作用的过程和反应机理做了初步的分析。得出结论 :真空紫外辐射作用下试样表面积累了碳而发生暗化 ,原子氧又将其漂白 ,这两种因素的复合作用 ,可能会使Teflon材料产生更为严重的剥蚀。
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| 关 键 词： | 聚四氟乙烯 空间材料 真空紫外辐射 原子氧 复合效应 地面模拟试验 |
Experimental Study of Vacuum Ultraviolet Radiation Effects and Its Synergistic Effects with Atomic Oxygen on a Spacecraft Material-Polytetrafluoroethylene |
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| ZHAO Xiao-hu,SHEN Zhi-gang,XING Yu-shan,MA Shu-lin.Experimental Study of Vacuum Ultraviolet Radiation Effects and Its Synergistic Effects with Atomic Oxygen on a Spacecraft Material-Polytetrafluoroethylene[J].Chinese Journal of Aeronautics,2004,17(3):181-186. |
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| Authors: | ZHAO Xiao-hu SHEN Zhi-gang XING Yu-shan MA Shu-lin |
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| Institution: | School of Aeronautics Science and Engineering, Beijng University of Aeronautics and Astronautics, Beijing 100083, China;School of Aeronautics Science and Engineering, Beijng University of Aeronautics and Astronautics, Beijing 100083, China;School of Aeronautics Science and Engineering, Beijng University of Aeronautics and Astronautics, Beijing 100083, China;School of Aeronautics Science and Engineering, Beijng University of Aeronautics and Astronautics, Beijing 100083, China |
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| Abstract: | Polytetrafluoroethylene (Teflon), a widely used spacecraft material, is studied to investigate the vacuum ultraviolet (VUV) effects and its synergistic effects with atomic oxygen (AO) in a ground-based simulation facility. The samples before and after the experiments are compared in appearance, mass, optical properties and surface composition. The reaction characteristics of Teflon are summarized and the reaction mechanisms are analyzed. The following conclusion can be drawn: at the action of VUV the Teflon sample surface is darkened for the accumulation of carbon; and when the sample is exposed to AO, the carbon is oxidized and the darkening surface is bleached; the synergistic effects of VUV and AO may cause the erosion of Teflon more severe. |
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| Keywords: | polytetrafluoroethylene spacecraft material vacuum ultraviolet radiation atomic oxygen synergistic effects ground-based test |
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