Study on the Low-Emissive Camouflage Pigment

摘要

A low-emissive pigment of Al/SiO2/Fe2O3/FeO/Fe4[Fe(CN)6]3/Cr2O3/Cr (MAS) was prepared by chemical deposition method.The camouflage characteristics of the coated fabric with paint mixed with MAS,binder and other auxiliary in the thermal infrared (IR 8～14 μm) and the optical (0.38～1.2 μm) region,was studied by emissivity tester,visible light camera and thermal infrared imager.The results show that the MAS pigment has low emissivity and optical camouflage effectiveness compared with the Al/SiO2 pigment.Particularly,the MAS pigment is in green by depositing metal oxide,ferrocyanide and pure metal on the surface of Al/SiO2.The optical reflectance spectrum of coated fabric was similar to the natural grass.Furthermore,the surface emissivity of the coated fabric reached 0.51 in the IR region.The thermography of the coated fabric with 4 wt％ MAS was similar to the natural grass.It can conclude that the coated fabric can perfectly imitate grass background.