溶胶-凝胶法制备纳米近红外高反射率黑色陶瓷颜料  

Nano black high near-infrared reflectance ceramic pigments synthesized by sol-gel method

作　　者：张潇予[1,2] 张玉军[1,2] 龚红宇[1,2] 王翠玲[1,2] 赵新巧[1,2] 朱洪立[1,3] 熊天农 

机构地区：[1]山东大学材料液固结构演变与加工教育部重点实验室,山东济南250061 [2]山东大学特种功能聚集体材料教育部重点实验室,山东济南250061 [3]中国兵器工业集团第五三研究所,山东济南250031 [4]沈阳管通科技有限公司,辽宁沈阳110031

出　　处：《功能材料》2013年第3期417-420,共4页Journal of Functional Materials

基　　金：国家自然科学基金资助项目(51072099)

摘　　要：以硝酸铁、硝酸铬、柠檬酸、乙二醇为原料,采用溶胶-凝胶法制备了纳米近红外高反射率黑色陶瓷颜料,探讨了Fe/Cr摩尔比、水解温度、溶液pH值、金属离子浓度、煅烧温度等因素对溶胶-凝胶过程及样品性能的影响。结果表明,在Fe/Cr摩尔比为0.50,水解温度70℃,溶液pH值=3～4,金属离子浓度为2.5～3.5mol/L,煅烧温度为900℃时,制备的颜料主晶相为Cr1.3Fe0.7O3,平均颗粒尺寸为50～150nm,在700～2500nm波段内的平均反射率为77.58%。Nano black high near-infrared（NIR） reflectance ceramic pigments were prepared with ferric nitrate,chromium nitrate,citric acid,and ethylene glycol by sol-gel method.The effects of different molar ratio of Fe and Cr,hydrolysis temperature,the pH of the solution,concentration of metal ions and calcination temperature were investigated.The results show that the crystalline phase of the as-prepared pigments is Cr1.3Fe0.7O3 with average NIR reflectance about 77.58% in 700-2500nm wavelength range when Fe/Cr molar ratio was 0.50,hydrolysis temperature was 70℃,pH value was 3-4,metal ion concentration was 2.5-3.5mol/L,calcination temperature was 900℃.

关 键 词：溶胶-凝胶 近红外 高反射率 纳米 颜料 

分 类 号：TB34[一般工业技术—材料科学与工程]