Abstract: For the incompatibility between foaming power and stability，and poor optical camouflage performance of aqueous foam, a new camouflage material is studied. A green camouflage aqueous foam with high stability was made by mixing anionic surfactant sodium dodecyl sulfate and cationic surfactant octadecyl trimethyl ammonium chloride, and using the color matching technology of green camouflage colorant. The stability and optical camouflage performance of aqueous foam were analyzed. The results show that the structure of aqueous foam is closed-pore alveolate, the shape is irregular, and the size is uneven. The average size of aqueous foam is 0.9-2.5 mm. When the ambient temperature is -2-30 ℃ in climate simulation experiment, the foaming ratio of aqueous foam is 21-32, and the duration is 73-185 h, which show that the foaming power is compatible with the foam stability. The field experimental shows that the duration of aqueous foam meets the temporary camouflage requirement. The green camouflage aqueous foam has the same colour and spectral reflection characteristics as the green plants in the range of 380-1 100 nm, which shows that the material has visible-near infrared camouflage properties. Thus the degree of aqueous foam application in military camouflage is improved. Key

Key words: greencamouflageaqueousfoam, foamingpower, stability, camouflagecolorant, visible-nearinfrared