以丙烯酸改性聚氨酯为粘结剂,CuCoMnOx半导体复合氧化物为颜料,采用喷涂法制备了光谱选择性吸收涂层。考察了颜料与粘结剂的质量比〔简称颜基比(P/B),下同〕、球磨时间、温度、底材和膜层厚度等因素对涂层光热性能的影响。结果表明,颜基比为3∶1,球磨时间9～12 h,Al作底材,膜层厚度1.9μm时所得涂层的吸收率αs=0.936,发射率εT=0.312,αs/εT=3.0。经测定,涂层具有较强的机械性能、耐腐蚀性能和耐候性能。 Using acrylic modified polyurethane as binder and CuCoMnOx semiconductor composite oxide as pigment, a spectrum-selective absorption coating was prepared by spray coating. The effects of the mass ratio of pigment to binder ([P / B], the same below), the milling time, temperature, the thickness of substrate and film were investigated. The results show that the absorption rate αs = 0.936, the emissivity εT = 0.312, αs / εT = 3.0 when the substrate ratio is 3: 1, the milling time is 9-12 h and Al is the substrate. . It was determined that the coating has strong mechanical properties, corrosion resistance and weathering properties.