油酸改性纳米ZrO2粉体及其机制研究  

Surface Modification of Nano-ZrO_2 with Oleic Acid and Its Mechanism

作　　者：郑育英[1] 黄慧民[1] 姬文晋[1] 邓淑华[1] 欧得华[2] 

机构地区：[1]广东工业大学化工学院,广东广州510006 [2]广州市公安消防支队第一大队,广东广州510000

出　　处：《稀有金属》2008年第1期63-67,共5页Chinese Journal of Rare Metals

基　　金：广东省重大工业攻关(2004A10701005)资助项目

摘　　要：采用水热法制备了平均粒径小于10 nm左右的氧化锆。用油酸对纳米ZrO2粉体进行了表面改性,研究了改性工艺条件中油酸添加量对亲油改性效果的影响。按质量百分比油酸∶乙醇∶水=1∶2∶2的比例配制改性剂,油酸添加量为ZrO2的10%(摩尔分数)时,改性的ZrO2粉体在二甲苯中分散稳定性最佳。通过FT-IR分析表明,油酸与纳米ZrO2是以氢键和共价键两种形式结合,在无机纳米粒子表面形成单分子膜。Nano-ZrO2 was prepared by hydrothermal method,and the product of ZrO2 was modified with oleic acid.The influence of addition of oleic acid on the oleophilic effect of modified nano-ZrO2 was studied.When the addition of oleic acid was 10% of ZrO2,the dispersive stability of modified ZrO2 in the xylene was the best one using the modifier prepared with mass ratio of oleic acid to ethanol to water being 1∶2∶2.The characterization by FT-IR showed that nanometer particles combine with oleic acid by both types of covalent bond and hydrogen bond to form a mono-molecule layer on the surface of the particles.

关 键 词：氧化锆 表面改性 油酸 纳米 

分 类 号：O614.33[理学—无机化学]