为防止空间环境中强紫外辐照对有机材料造成的破坏,通过实验室环境紫外加速老化,采用色差分析和光泽分析监测了有机材料在紫外老化过程中的颜色变化和光泽变化,考察有机材料化学结构对材料耐紫外环境稳定性影响,优选出一种基于特定结构改性有机硅树脂的有机材料,经历辐照后不发生褪色、粉化、机械性能下降等问题.以此材料进行仿真测试,结果表明所研制的材料在深空极端紫外环境下具有高度稳定性,适用于航天器在空间环境中的标志及标识.

In order to prevent the damage of organic materials caused by strong ultraviolet radiation in space environment,the influence of chemical structure of organic materials on the stability of materials in ultraviolet environment was investigated through accelerated ultraviolet aging in laboratory environment,color difference analysis and gloss analysis were used to monitor the color change and gloss change of organic materials in the UV aging process,and a kind of organie material based on silicone resin with specific structure was selected,which would not fade,pulverize,mechanical properties decline after irradiation.The results showed that this material had high stability in extreme ultraviolet environment and was suitable for spacecraft marking in space environment.