Study on preparation of Co-blue pigment hollow glass microspheres composites and properties of heat reflection
ZENG Guoxun
YANG Jiankun
LI Feng
LIU Liying
JIANG Xiangyang
YAN Zhiwei
Abstract：Core-shell structure Co-blue hollow glass microspheres(HGMs) composites with high heat reflection were prepared as color heat reflective paint.Hollow glass microspheres were mixed with Co-blue sub-micro powder slurry which was prepared by water slurry mixed sintering method and sintering at 620 ℃.The structures and characteristics of the core-shell Co-blue HGMs were characterized by SEM,XRD.A composite coating was prepared by this kind of materials.Reflective ratio of solar and infrared on Co-blue HGMs-SR composites coatings were investigated using UV-Vis-NIR and FTIR spectrometer.The results show that the average size of the oxide particles is 400 nm.The Co-blue HGMs-SR formed a pigment shell because of cladding on the surface of hollow glass microspheres.The reflectance value of the Co-blue HGMs-SR composites coatings is better than the Coblue pigment-SR coating.Especially,between bandwidth of 400～500 nm and 1000～2500 nm of solar spectrum,indicating the advantage of multi-interface structure composites in solar-reflectance properties.The absorption are more than 90％ in the infrared wavelength range of 8～14 μm,which indicated that core-shell Co-blue HGMs can be applied as a good color cool pigment.
Keywords：Co-blue powdershollow glass microspheresheat reflectance
Publication Date：2017-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：5( 5-8,66 )