图1d是以溶胶凝胶法制备的10%ALPI在原子氧暴露实验前的照片，可以

Figure 1d is a photo of 10% ALPI prepared by the sol-gel method before the atomic oxygen exposure experiment. The huge white aggregates on the surface of the sample can be clearly observed. At the same time, the surface of the sample prepared by the blending method in Figure 1e is flat. .

Figure 1d is a 10% ALPI photo prepared by the sol gel legal system before the atomic oxygen exposure experiment, it can be clearly observed that the sample surface of the huge white reunion, at the same time, Figure 1e with the mixed legal system of the sample surface flat.

Fig. 1D is a photo of 10%ALPI prepared by sol-gel method before the atomic oxygen exposure experiment. It can clearly observe the large white aggregates on the surface of the sample. Meanwhile, the surface of the sample prepared by blending 1E is flat.<br>