纳米CeO_2的表面改性工艺研究  

The study on surface modification process of nanometer CeO_2

作　　者：胡震[1] 谢利群[2] 杨昌南 赵岩[4] 李艳萍[4] 

机构地区：[1]四川理工学院材料与化学工程系,四川自贡643000 [2]中国石油吉林石化公司研究院,吉林吉林132021 [3]中国石油工程设计有限公司东北分公司,吉林吉林132002 [4]中国石油吉林石化公司炼油厂,吉林吉林132022

出　　处：《化工科技》2007年第3期17-20,共4页Science & Technology in Chemical Industry

摘　　要：采用改性剂月桂酸钠对自制的纳米CeO2进行表面改性,逐一考察了表面改性工艺的各个影响因素,得到各因素的取值范围,通过正交优化实验确定纳米CeO2表面改性的优化工艺:改性剂质量浓度为2.1 g/L、改性温度为45℃、改性pH值为6和改性时间为18 min。改性后的纳米CeO2的亲油化度达到0.48,能较好地分散于乙醇中。The sodium laurate was used to modificate the nanometer CeO2 which was prepared in this work. At first all the effect factors were investigated respectively and each optimum range of factors was obtained. Because of cross action between the four factors, the orthogonal tests were done in order to obtain the optimum condition of modification. The modifier concentration was 2. 1 g/L,the modification temperature was 45℃,the modification pH was 6 and modification time was 18 rain. The lipophilicity of the nanometer CeO2 which was modified under optimum condition was 0.48. The powders were well dispersed in alcohol.

关 键 词：纳米 CEO2 改性 正交设计 亲油化度 

分 类 号：TQ330.38[化学工程—橡胶工业]