Issues on the Out-layer Protection of Spacesuit in Space Environment

A spacesuit or EMU(Extravehicular Mobility Unit) is essential for the human being to explore the universe. The different factors of space environment have been listed, and the issues and related researches on the out-layer protection materials for EMU have been discussed fundamentally. On the base of the characteristics of space environment, the protective mechanism in different conditions, the realization of effective protection and the structure and property of the protection materials have also been discussed in detail. Some ideas and results, especially researches are introduced, which can provide foundation for the realization of the multi-functions design and protections of the out-layer materials to be used to EMU.