The Effect of Structure on IR Emissivity

The IR camouflage materials with low emissivity usually adopt the metal,ATO and photonic crystals.Because the limitation of their physical and mechanical properties,it is hard to fulfill the demands of multi-band camouflage.Preparation of IR camouflage materials with low emissivity based on the back reflection effect is a new route.The main aim is to obtain IR-transparence porous polymeric materials,the micro-cells inside of the polymeric materials will reflect the incident light for many time and will improve the reflection effect.Based on the theory of Kubelka-Munk,quantitative analysis of the parameters of polymeric materials has been conducted on the equivalent emissivity.