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为制备电磁屏蔽/红外隐身双功能织物，采用铝粉作为填料，结合聚丙烯酸树脂制备复合涂料，通过涂层法使其均匀附着在棉织物上，制备具有较高电磁屏蔽性能和较低红外发射率的双功能涂覆织物，测试分析织物性能，并与其他金属涂覆织物进行比较。结果表明：相比于铜粉、青铜粉和镍粉，采用铝粉制备的涂覆织物有着更好的电磁屏蔽性能和红外隐身性能；随着铝粉含量、铝粉涂覆层厚度的增加，铝粉涂覆织物的电磁辐射强度先逐渐降低，然后趋于稳定；最佳制备条件为铝粉粒径200目、质量分数20%、涂覆厚度0.2 mm，与未涂覆铝粉织物相比，此时铝粉涂覆织物的电磁辐射强度降低了24%，红外发射率下降了22%、在780～2 500 nm范围内的近红外反射率提高了21%，具有红外线隐身及电磁波屏蔽双功能。
Abstract：To prepare the dual-functional fabrics with electromagnetic shielding and infrared stealth, aluminum powder was used as a filler, and a composite coating was prepared by combining polyacrylic acid resin. The composite coating was uniformly applied to cotton fabric via a coating method, resulting in a dual-functional coated fabric with high electromagnetic shielding performance and low infrared emissivity. The performances of the fabric were tested and compared with other metal-coated fabrics. The results show that compared with fabrics coated with copper powder, bronze powder, and nickel powder, the fabric coated with aluminum powder exhibits superior electromagnetic shielding performance and infrared stealth performance. With the increase in aluminum powder content and the thickness of the aluminum powder coating, the electromagnetic radiation intensity of the aluminum powder-coated fabric first decreases gradually and then tends to stabilize. The optimal preparation conditions are as follows: aluminum powder with a particle size of 200 mesh and a mass fraction of 20%, and a coating thickness of 0.2 mm. Compared with the uncoated fabrics, the aluminum powder-coated fabric prepared under these conditions exhibits a 24% reduction in electromagnetic radiation intensity, a 22% decrease in infrared emissivity,and a 21% increase in near-infrared reflectance within the wavelength range of 780—2 500 nm. Thus, it possesses the dual functions of infrared stealth and electromagnetic wave shielding.
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基本信息:
中图分类号:TS195.6
引用信息:
[1]马晓光,元森阳.铝粉涂覆型电磁波响应/红外隐身双功能织物的制备及性能[J].天津工业大学学报,2025,44(05):30-35.
基金信息:
中央军事委员会装备发展部项目（202GJBZF0140）