▎ 摘　　要

NOVELTY - A stratospheric aerostat skin comprises a weather-proof layer, a gas barrier layer (a1) and a load-bearing layer. The gas barrier layer (a1) comprises a polymer film, and a graphene layer (b1) arranged on the upper surface of the polymer film and/or a graphene layer (b2) arranged on the lower surface of the polymer film. USE - Stratospheric aerostat skin (claimed). ADVANTAGE - The stratospheric aerostat skin has high thermal conductivity. Since the graphene layer(s) is capable of rapidly conducting the thermal energy of sunlight which irradiates the skin, overall rapid cooling is achieved, and the temperature of the whole skin is maintained to be uniform. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for preparation of stratospheric aerostat skin, which involves forming the graphene layer (b1) on the upper surface of the polymer film and/or forming the graphene layer (b2) on the lower surface of the polymer film to form gas barrier layer (a1), stacking the weather-proof layer, gas barrier layer (a1) and load-bearing layer and hot-pressing.