白炭黑/TiO_2复合颜料的制备及性能研究  

Study on Preparation and Properties of Silica/TiO_2 Composite Pigments

作　　者：黄金凤[1,2] 向卿[1] 童跃进[1,2] 

机构地区：[1]福建师范大学化学与化工学院,福建福州350007 [2]福建师范大学化工新材料研究所,福建福州350007

出　　处：《广东化工》2016年第16期14-16,共3页Guangdong Chemical Industry

基　　金：福建省科技厅高校产学研重大项目资助(编号:2013H6006;福建省教育厅B类项目资助(编号:JB12047)

摘　　要：亚熔盐法分解钾长石制得的溶液和金红石型钛白粉(TiO_2)为原料,利用硫酸沉淀法制备的白炭黑与钛白粉通过原位复合法制备SiO_2/TiO_2复合颜料,探讨各种工艺条件对制备复合粉体的影响。当TiO_2百分比为60%、搅拌转速300 r/min、反应温度85℃、滴加速度1 m L/min时,所制得的粉体性能最好。复合粉体遮盖力值为22.5 g/m^2,吸油值为67.0 g/100 g,白度为97.0%。Silica-TiO2 composite pigments were synthesized via in-situ composite reaction by sulfuric acid precipitation method using the solution from the sub-molten salt method to decompose potassium feldspar and rutile titanium dioxide as raw material. We investigated the effect of various process conditions on the preparation of composite powders. When percentage is 60 %, rotation speed is 300 r/min, reaction temperature is 85 ℃, drops of acceleration is 1 mL/min, the obtained powder has the best performance. The covering power, oil absorption and whiteness of the silica/TiO2 composite pigment are 22.50 g/m^2, 67 g/100 g, and 97.00 %.

关 键 词：钾长石 白炭黑 复合钛白 

分 类 号：TQ[化学工程]