摘要
在激光源原子氧地面模拟设备中对Kapton/Al薄膜二次表面镜进行了原子氧与紫外综合辐照实验,研究了Kapton/Al薄膜质量及太阳吸收比的变化,重点关注了实验前后Kapton/Al薄膜表面结构及成份的改变。结果表明:Kapton/Al薄膜二次表面镜的质量随辐照时间的增加逐渐减小,太阳吸收比的变化趋势与之相反,随辐照时间的增加逐渐增大;综合辐照后Kapton/Al薄膜表面主要官能团数量呈下降趋势;综合辐照过程中材料表面C-C键、C-N键的破坏及在原子氧和紫外环境中重新结合成新的化学结构是造成Kapton/Al薄膜性能退化的主要微观机制,气体小分子的挥发是造成Kapton/Al薄膜质量损失的主要原因。
Atomic oxygen （AO）, near ultraviolet （NUV） and vacuum ultraviolet （VUV） irradiation test of Kapton/A1 sec-ond surface mirror film was conducted using laser induced AO simulation faeility the mass, solar ahsorptance, surface structureand composition were investigated. The results indicate that the mass of Kapton/A1 film is decreased with increasing irradiationtime, but the solar absorptance displays entirely different trend, which is increased with increasing irradiation time. After irradia-tion, the quantity of the main functional groups in Kapton/A1 film surface presents downtrend basically. The breakage of C--Cand C--N bonds and new chemical bond creation in Kapton/A1 film surface are considered mechanisms of the degradation, and gasmolecule volatilization leads to the mass loss of Kapton/A1 film.
出处
《强激光与粒子束》
EI
CAS
CSCD
北大核心
2015年第12期196-202,共7页
High Power Laser and Particle Beams
基金
国家自然科学基金项目(51301005
41304147
21277014)
总装预研基金项目
作者简介
姜海富，男，博士，从事航天器空间环境效应研究
