Color performance and near infrared reflectance property of novel yellow pigment based on Fe2TiO5 nanorods decorated mica composites
Color performance and near infrared reflectance property of novel yellow pigment based on Fe2TiO5 nanorods decorated mica composites
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DOI：
10.1016/j.dyepig.2017.07.035
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发表时间：
2017-11
影响因子：
4.5
通讯作者：
Q. Gao;Xiaomei Wu;Yueming Fan;Q. Meng
中科院分区：
文献类型：
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作者：
Q. Gao;Xiaomei Wu;Yueming Fan;Q. Meng
为获得具有高近红外反射率的冷黄色颜料，采用化学液相沉积法制备了云母/Fe2TiO5复合颜料。用X射线衍射仪(XRD)、扫描电子显微镜(SEM)、X射线光电子能谱(XPS)、UV-VIS-NIR漫反射光谱和CIEL*a*b*色标对所制备的复合颜料粉末进行了表征。在云母颗粒表面包覆不同尺寸的Fe2TiO5纳米棒。纳米棒的粒径随着Fe3+与Ti4+摩尔比的增大而增大。所得复合颜料具有较强的紫外线屏蔽能力和较高的近红外反射性能。此外，根据Kubelka-Munk理论，粒径较小的Fe2TiO5涂层在700-1500 nm范围内具有较高的反射率。云母/Fe2TiO5复合材料的近红外太阳反射率高达80.3%。涂有复合颜料的热箱内部温度降低了约3℃。此外，复合颜料还呈现出鲜艳的黄色。因此，云母/Fe2TiO5复合材料是一种性能优良的近红外反射黄色颜料，适用于高效的太阳反射涂料。
To obtain cool yellow pigments with high near-infrared reflectance, mica/Fe2TiO5composite pigments were synthesized by a chemical liquid deposition method. The developed composite pigment powders were characterized by X-ray diffraction (XRD), scanning electronic microscopy (SEM), X-ray photoelectron spectroscopy (XPS), UV–vis–NIR diffuse reflectance spectra, and CIEL*a*b*color scales. Different sized Fe2TiO5nanorods were coated on the surface of mica particles. The particle size of the nanorods increased with increasing molar ratio of Fe3+to Ti4+. The obtained composite pigments showed strong ultraviolet shielding ability and high near-infrared reflectance property. What's more, the Fe2TiO5coating with smaller particle size possessed higher reflectance in the region of 700–1500 nm in accordance with the Kubelka-Munk theory. The near-infrared solar reflectance of mica/Fe2TiO5composites was as high as 80.3%. An approximately 3 °C decrease in interior temperature was obtained for the heat box coated with the composite pigments. Furthermore, the composite pigments exhibit brilliant yellow colors. Therefore, mica/Fe2TiO5composites are excellent near infrared reflective yellow pigments for efficient solar reflective coatings.