以青铜(bronze)粉与Sm2O3为复合颜料,聚氨酯(PU)为黏合剂,制备了PU/bronze-Sm2O3复合涂层.系统研究了涂层的红外发射率、近红外吸收性能及力学性能.结果表明:Sm2O3的存在可有效降低涂层对1.06μm与1.54μm近红外光的反射率,青铜粉的存在可有效降低涂层在8～14μm波段的红外发射率;通过调节青铜粉与Sm2O3质量比,涂层在8～14μm波段的红外发射率可在0.422～0.782范围内调节,涂层对1.06μm与1.54μm近红外光的反射率可分别在46.8％～65.0％和49.3％～70.7％范围内调节;所制备PU/bronze-Sm2O3复合涂层具备优良的力学性能,在不同青铜粉与Sm2O3质量比下,其附着力与耐冲击强度分别可达到1级和50kg·cm.
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