无定形纳米ZrO_2表面改性研究  

Surface Modification of Amorphous ZrO_2 Nano-particles

作　　者：马士玉[1] 郑少华[1] 郭洪娜[1] 丁海洋[1] 

机构地区：[1]济南大学材料科学与工程学院,济南250022

出　　处：《材料工程》2008年第10期366-369,共4页Journal of Materials Engineering

基　　金：国家自然科学基金资助项目(50572034)

摘　　要：采用溶胶-凝胶法制得粒径为57nm的无定形纳米ZrO2粒子。用硅烷偶联剂KH560、KH570、A151、钛酸酯、硬脂酸等表面活性剂对其表面进行修饰。修饰后对改性效果进行激光粒度,红外光谱,扫描电镜,透射电镜,X射线衍射分析。实验证明:A151改性效果较好,改性后无机纳米粒子表面的羟基和有机集团发生化学键结合,无机纳米粒子表面性质由亲水憎油向亲油憎水转变。At first ,57nm ZrO2 was produced by the sol-gel methods. The nano-meter ZrO2 was modified with KH-560, KH-570, A151,titanate and stearic acid. Then the powder was analyzed by laser particle analyser, IR pattern, SEM, TEM, XRD. Results indicated that A151 was the best modifier, surface-modified nano-particles ZrO2 had a good dispersity in organic solvents exhibit a rather uniform size distribution.

关 键 词：纳米添加剂 表面改性 纳米ZRO2 润滑油 

分 类 号：TH117[机械工程—机械设计及理论]