玻璃纤维复合材料的原子氧剥蚀效应试验研究

对两种玻璃纤维复合材料开展了原子氧效应的地面模拟试验研究。总结了试验前后试样质量及表面形貌的变化规律，计算得到了材料的剥蚀率。试验结果表明，随着原子氧累积通量的增大，玻璃纤维复合材料的质量和体积损失减慢。经分析认为，在原子氧与复合材料的作用过程中，树脂优先被剥蚀，而将纤维暴露在外，由于玻璃纤维对底层树脂基体的遮挡作用，导致在原子氧效应试验后期，玻璃纤维复合材料的剥蚀速度减缓。

An Experimental Study of Atomic Oxygen Effects on Glass Fiber Composites

The composite is widely used on the spacecraft for there excellent performance. But when it was exposed in space, it will be faced with the severe influence of Low Earth Orbit environment effects, especially atomic oxygen. The experimental study of two kinds of glass fiber composites, glass fiber/epoxy resin and beta cloth, were constructed with the ground-based atomic oxygen effects simulation facility. The samples were compared in mass and surface morphology before and after the experiments. It is found that the erosion yield of these two composites decreased with the increasing of atomic oxygen fluence. Through the analyzing we draw that at the action of atomic oxygen the resin is eroded preferential and the glass fiber is exposed. Since the glass fiber is non-reactive with atomic oxygen, it protects the resin against the further erosion of atomic oxygen.