Preparation and Characterization of High Reflectance Titanium Powders
- 化学化工－已发表论文 
通过分析颜料光学性质、形貌和粒径与热反射比的关系,制备了一种对波长范围为400~2500 nm的光具有较高反射比的球形二氧化钛粉体材料。通过粉体的X射线衍射分析、扫描电镜成像、动态激光散射粒度分析等表征,证实粉体晶型为金红石型,粒径较好的分布在200~1250 nm,经紫外-可见-近红外分光光度计检测,其反射比均优于市售钛白,其中所制备的1.228μm球形二氧化钛粉体具有最好的反射比。Based on the analysis of the relationship between the light reflectance and pigment optical properties, morphology, particle size distribution, the spherical TiO2 powders with high reflectance were prepared. Through the X-ray diffraction, scanning electron microscope imaging, and dynamic laser scattering particle size analysis, it was confirmed that the TiO2 powders were all in the form of rutile type and sphere with 200 - 1250 nm in. size. The test results using ultraviolet-visible-near infrared spectrophotometer revealed that all the as-prepared TiO2 particles were superior to the commercial titanium white, and the one with 1. 228 μm size was the best among them.