8～14μm波段低发射率涂层材料的制备及性能研究
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摘要
目的为满足市场对低发射率涂层的需要,制备了低发射率涂层材料,并讨论填料和基体树脂对其红外发射率的影响。方法以325、500、800、1000、1200、1500目铝粉为填料,丙烯酸树脂(AR)、环氧树脂(ER)和聚氨酯树脂(PR)为基体树脂,制备了低发射率涂层,分别从基体树脂种类、黏度、铝粉粒径及含量四个方面对涂层红外发射率进行了研究。结果 PR涂层在8~14μm波段的红外发射率最低,PR为低发射率涂层用基体树脂的最佳选择。涂层红外发射率随着基体树脂黏度的增大逐渐降低,并且变化趋势接近于线性。在研究范围内,铝粉的最佳粒径为325目,且涂层红外发射率随铝粉含量的增加而降低。结论制备的低发射率涂层的红外发射率低,而且环保。
The work aims to meet market demand of low-emissivity coatings by preparing low-emissivity coatings and discussing effects of filler and matrix resin on infrared emissivity.The low-emissivity coatings were prepared with Al powder(325 meshes,500 meshes,800 meshes,1000 meshes,1200 meshes,1500 meshes) as filler,and acrylic resin(AR),epoxy resin(ER) and polyurethane resin(PR) as matrix resin.The infrared emissivity was studied in terms of matrix resin type and viscosity,Al powder particle size and content.The PR coating exhibited the lowest infrared emissivity in 8~14 μm band,hence it was the best choice for low emissivity coatings.The infrared emissivity of coatings gradually decreased as matrix resin viscosity increased,and variation trend was approximately linear.Optimal particle size of Al powder within the research scope was 325 meshes,and the infrared emissivity of coatings decreased as the content of Al powder increased.The low-emissivity coatings prepared exhibits low infrared emissivity,which is environmentally friendly.
The work aims to meet market demand of low-emissivity coatings by preparing low-emissivity coatings and discussing effects of filler and matrix resin on infrared emissivity.The low-emissivity coatings were prepared with Al powder(325 meshes,500 meshes,800 meshes,1000 meshes,1200 meshes,1500 meshes) as filler,and acrylic resin(AR),epoxy resin(ER) and polyurethane resin(PR) as matrix resin.The infrared emissivity was studied in terms of matrix resin type and viscosity,Al powder particle size and content.The PR coating exhibited the lowest infrared emissivity in 8~14 μm band,hence it was the best choice for low emissivity coatings.The infrared emissivity of coatings gradually decreased as matrix resin viscosity increased,and variation trend was approximately linear.Optimal particle size of Al powder within the research scope was 325 meshes,and the infrared emissivity of coatings decreased as the content of Al powder increased.The low-emissivity coatings prepared exhibits low infrared emissivity,which is environmentally friendly.
引文
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[2]叶圣天,成声月,刘朝辉,等.冷颜料在红外隐身涂料中的应用[J].表面技术,2016,45(2):139-143.YE Sheng-tian,CHENG Sheng-yue,LIU Zhao-hui,et al.Application of Cold Pigments in Infrared Stealth Coatings[J].Surface Technology,2016,45(2):139-143.
[3]付伟.红外隐身原理及其应用技术[J].红外与激光工程,2002,31(1):88-93.FU Wei.Principle and Application Technology of IR Stealth[J].Infrared and Laser Engineering,2002,31(1):88-93.
[4]任玥,华萍,龚荣洲.基于环氧树脂的低发射率材料研究[J].兵器材料科学与工程,2011,34(2):45-47.REN Yue,HUA Ping,GONG Rong-zhou.Materials with Low Infrared Emissivity Based on Epoxy Resin[J].Ordnance Material Science and Engineering,2011,34(2):45-47.
[5]SHAO C,XU G,SHEN X,et al.Infrared Emissivity and Corrosion-resistant Property of Maleic Anhydride Grafted Ethylene-propylene-diene Terpolymer(EPDMg-MAH)/Cu Coatings[J].Surface and Coatings Technology,2010,204(24):4075-4080.
[6]WU G,YU D.Preparation and Characterization of a New Low Infrared-emissivity Coating Based on Modified Aluminum[J].Progress in Organic Coatings,2013,76(1):107-112.
[7]YUAN L,WENG X,DENG L.Influence of Binder Viscosity on the Control of Infrared Emissivity in Low Emissivity Coating[J].Infrared Physics&Technology,2013,56(1):25-29.
[8]成声月,刘朝辉,邓智平,等.军用目标红外辐射特征研究进展[J].红外技术,2014,36(7):577-581.CHENG Sheng-yue,LIU Zhao-hui,DENG Zhi-ping,et al.Research Progress on Infrared Characteristic of Military Target[J].Infrared Technology,2014,36(7):577-581.
[9]YU H,XU G,SHEN X,et al.Effects of Size,Shape and Floatage of Cu Particles on the Low Infrared Emissivity Coatings[J].Progress in Organic Coatings,2009,66(2):161-166.
[10]BABREKAR H A,KULKARNI N V,JOG J P,et al.Influence of Filler Size and Morphology in Controlling the Thermal Emissivity of Aluminium/Polymer Composites for Space Applications[J].Materials Science&Engineering B,2010,168(1):40-44.
[11]叶圣天,成声月,刘朝辉,等.8~14μm波段水性红外隐身涂料研究[J].红外与激光工程,2016,45(2):204004-204010.YE Sheng-tian,CHENG Sheng-yue,LIU Zhao-hui,et al.Water-based Infrared Stealth Coating in 8~14μm Wavebands[J].Infrared and Laser Engineering,2016,45(2):204004-204010.
[12]成声月,刘朝辉,叶圣天,等.水性红外隐身涂料制备工艺优化[J].表面技术,2015,44(8):71-75.CHENG Sheng-yue,LIU Zhao-hui,YE Sheng-tian,et al.Investigation for Preparation Process Optimizing of Water-based Infrared Stealth Coatings[J].Surface Technology,2015,44(8):71-75.