This paper describes a study of the degradation effect of vacuum-UV radiation and near-UV radiation on polymeric materials in space by using vacuum-UV and near-UV simulators. To study the degradation of polymeric material due to UV irradiation, we used four UV-sensitive polymers and investigated their UV degradation mechanism. The polymers were polyamide (PA), polycarbonate (PC), polyvinyl chloride (PVC), and polyphenylsulfone (PPSU). We carried out a vacuum-UV irradiation test (UV wavelength 120 nm to 200 nm) by using a deuterium lamp and a near-UV irradiation test (UV wavelength 200 nm to 400 nm) by using a xenon lamp. Both UV degradation tests were conducted for 250 equivalents to sun hours in Space.

中文翻译：

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利用氙灯和氘灯模拟太空环境中的紫外辐照研究紫外敏感聚合物的不同降解效果

本文介绍了利用真空紫外和近紫外模拟器研究真空紫外辐射和近紫外辐射对太空中聚合物材料的降解效应。为了研究紫外线照射引起的聚合物材料的降解，我们使用了四种紫外线敏感聚合物并研究了它们的紫外线降解机制。聚合物为聚酰胺 (PA)、聚碳酸酯 (PC)、聚氯乙烯 (PVC) 和聚苯砜 (PPSU)。我们进行了使用氘灯的真空UV照射试验（UV波长120nm～200nm）和使用氙灯的近UV照射试验（UV波长200nm～400nm）。两项紫外线降解测试均进行了 250 个相当于太空日照时数的时间。