聚氨酯基红外-激光兼容隐身涂层性能研究  

Preparation and properties of infrared-laser compatible stealth coating with waterborne polyurethane

作　　者：邢宏龙[1] 郭文美[1] 陶启宇[1] 叶翠情[1] 周桂娥[1] 

机构地区：[1]安徽理工大学化学工程学院,安徽淮南232001

出　　处：《激光与红外》2013年第7期761-765,共5页Laser & Infrared

基　　金：安徽理工大学博士基金项目资助

摘　　要：以三氧化二铬包覆片状铝粉粒子(Al/Cr2O3)为填料,聚碳酸酯基水性聚氨酯为粘合剂,涂敷于玻璃片上,自然干燥制得涂层。研究了粘合剂、填料及它们的加入量对涂层红外发射率和激光反射性能的影响。采用红外发射率测量仪和可调谐CO2激光器测试涂层在8～14μm红外发射率和10.6μm激光反射性能。结果表明:使用的粘合剂较普通水性聚氨酯发射率低,固定粘合剂量,改变填料加入量,涂层在8～14μm波段发射率和10.6μm激光的反射性能都随着包覆粒子的增加而减小,当加入量达到30%时,涂层的红外发射率可以降低至0.688,激光反射能量降至初始入射能量的1%,且涂层综合物理性能良好,达到红外—激光兼容隐身的要求。The infrared-laser stealthy coating was prepared by the way of coating on the glass, natural drying and using chromium oxide coated aluminum composite particles （ Al/Cr2O3 ） as filler, polycarbonate-based waterborne polyure- thane as adhesive. Effects of adhesive, filler and the amount added into the coating on infrared emissivity and laser re- flection of the coating are studied. Infrared emissivity at spectral range of 8 ~ 14 μm and laser reflection at spectral range of 10. 5μm were measured with infrared emissivity test instrument and tunable CO2 laser. The results show that the infrared emissivity of adhesive used in this coating is low compared with ordinary waterborne polyurethane. Infrared emissivity and reflected laser energy of the coating decrease with the increase of composite particles. Infrared emissivi- ty is reduced to 0. 688 and the energy reflected back is only 1% of the initial incident laser energy, when the compos- ite particles added are 30%. The coating has better comprehensive properties and can meet the requirements of the IR-laser stealth.

关 键 词：红外发射率 激光反射 兼容隐身 涂层 

分 类 号：TN213[电子电信—物理电子学]