原子氧环境对聚合物及其复合材料性能的影响

在选择卫星结构材料时，必须要对所选材料在宇宙空间环境中的可靠性进行评定，重要的是了解空间环境对材料性能的影响，文章阐述了空间低地球轨道环境中原子氧对聚合物及其复合材料性能的影响，介绍了模拟评定试验材料性能的方法，分析了作用原理，防护措施及选择聚合物复合材料应考虑的原则。

EFFECTS ON POLYMER AND COMPOSITES PROPERTIES BY ATOMIC OXYGEN EXPOSURE

he selection of materials for spacecraft constructures requires evaluation of candidate materials which can perform reliably in the space environment.Understanding the effects of the space environment on the materials is an important step in the selection of candidate materials.This work examines the effects on polymer and composites properties induced by atomic oxygen exposure in the space low Earth orbit environment. It describes the simulated evaluation about the properties of candidate materials.lt analyses the mechanisms of the observed effects and protection meanse from damage.Considerations for the future materials development are suggested.