使用扫描电镜对喷雾干燥法得到氧化石墨块进行表征。进一步提高进料浓度（4.0<C≤8.0 mg·mL^-1），液滴本身具有向列相，有序的GO片层将在干燥过程中引起动态阻滞现象，因此液滴中的GO片层可以保持其原始的定向结构。随着水分的进一步褪去，将引起明显的挤压作用，得到最终有序层状结构的GO粉体。

The graphite oxide blocks obtained by spray drying method were characterized by scanning electron microscopy. Further increasing the feed concentration (4.0<C≤8.0 mg·mL-1), the droplet itself has a nematic phase, and the ordered GO lamellar layer will cause a dynamic retarding phenomenon during the drying process, so the GO lamellar layer in the droplet can maintain its original oriented structure. With the further fading of water, the obvious extrusion effect will be caused, and the final ordered layer structure of GO powder will be obtained.