地面环境与空间环境间的巨大差异对氧化锌白漆的性能退化研究影响很大.为了在地面模拟实验中保护氧化锌白漆的光学性能退化,在模拟的空间环境下对S781白漆进行了150keV质子辐照实验,辐照后分别在原位、空气、真空、氩气和液氮环境下研究了S781白漆光谱反射系数的变化和太阳吸收比的变化.结果表明:空气暴露后,氧在氧化锌表面的化学吸附使光学性能退化显著恢复.真空、氩气和液氮能够抑制气体的化学吸附,因此对光学性能退化具有保护作用.此外,液氮的冻析效应也有助于抑制光学性能退化的恢复.
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