一种在8～12μm波段高发射率涂料的研制

Development of a High Emissivity Coating in 8～12 Wavelength

影响目标红外辐射亮度有两个因素：表面温度和发射率。运用涂料是改变发射率的一种简单可行的方法，使用不同发射率的涂料能够灵活有效地使目标热变形，达到隐身的目的。我们研制的一种高发射率涂料（ＦＨ９４—１型）由粘合剂、着色染料、填加剂配制而成。用红外光谱仪测得该涂料在８～１２μｍ波段有较强吸收特性，这种吸收特性主要来自填加剂。使用ＡＧＥＭＡ９００热像仪，测得８～１２μｍ波段法向平均发射率εｎ等于０．９２。

Temperature and surface emissivity are the two factors that determine the IR radiant intensity of an object. Surface coating is a simple way to change emissivity. A coating material (FH94-1) composed of binding agent, dye and filler with strong absorbing property in 8～12 has been developed. The average normal emissivity is 0.92 in this wave band. The absorption property comes mainly from the filler.