高反射比纳米TiO_2的制备  

Preparation of nano-TiO_2 with high reflectance

作　　者：李国栋[1] 陈秉辉[1] 黄佳龙[1] 肖宗源[1] 

机构地区：[1]厦门大学化学化工学院,厦门361005

出　　处：《化工新型材料》2011年第5期88-91,共4页New Chemical Materials

基　　金：福建省自然科学基金(2009J05036)资助

摘　　要：采用溶胶-凝胶法制备纳米TiO2,利用紫外-可见-近红外分光光度计测定样品在400~2500 nm的反射率。系统研究了制备条件对样品反射率的影响,并确定了最佳制备条件。所制备的纳米TiO2粉体的平均反射率大于110%,明显高于市售的太阳热反射粉,该粉体能够作为良好的太阳热反射涂料颜填料。Nano-TiO2 were prepared with sol-gel method,and the reflectance of nano-TiO2 in the range of 400-2500 nm was determined by UV-VIS-NIR spectrophotometer.The effects of preparating conditions on reflectance were systematically investigated,and the optimum preparating conditions were obtained.The average reflectance of nano-TiO2 was larger than 110%,aparently higher than that of the marketable solar reflective powders.This powder can be used as good fillers in solar reflective coatings.

关 键 词：纳米TIO2 测定 反射比 溶胶-凝胶法 太阳热反射涂料 

分 类 号：O614.411[理学—无机化学] TB383.1[理学—化学]