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首页> 外文期刊>Chinese journal of aeronautics >Experimental Study of Vacuum Ultraviolet Radiation Effects and Its Synergistic Effects with Atomic Oxygen on a Spacecraft Material-Polytetrafluoroethylene
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Experimental Study of Vacuum Ultraviolet Radiation Effects and Its Synergistic Effects with Atomic Oxygen on a Spacecraft Material-Polytetrafluoroethylene

机译：航天材料-聚四氟乙烯的真空紫外线辐射效应及其与原子氧协同效应的实验研究

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摘要

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.
机译：在地面模拟设施中，对广泛使用的航天器材料聚四氟乙烯（Teflon）进行了研究，以研究真空紫外线（VUV）的作用及其与原子氧（AO）的协同作用。比较实验前后的样品的外观，质量，光学性质和表面组成。总结了聚四氟乙烯的反应特性，并分析了反应机理。可以得出以下结论：在VUV的作用下，聚四氟乙烯样品表面变黑以积聚碳。当样品暴露于AO时，碳被氧化并且变黑的表面被漂白； VUV和AO的协同作用可能导致特氟龙的腐蚀更严重。

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