纳米金刚石表面改性处理及表面结构表征  

Study on nano-diamond surface modification and characterization of surface structure

作　　者：邓福铭[1] 张怡[1] 詹昶[1] 李丹[1] 陆绍悌[1] 王强[1] 

机构地区：[1]中国矿业大学(北京)超硬刀具材料研究所,北京100083

出　　处：《金刚石与磨料磨具工程》2015年第5期1-4,14,共5页Diamond & Abrasives Engineering

基　　金：国家自然科学基金(NO.51172278);国家级大学生科研训练项目(Z201311413033);国家级大学生创业实践项目(201311413067)

摘　　要：利用强氧化性酸和真空热处理对尺寸为50nm的金刚石微粉进行表面改性处理并进行研究。通过XRD、Raman、TG-DTA以及FTIR等分析手段测试了纳米金刚石的表面结构和耐热性能。研究结果表明:这一工艺可以去除纳米金刚石表面大部分吸附杂质,提高耐热性能,但羟基和羰基等基团难以去除。The surface of nano‐diamond particles （ 50 nm） was modified by strong acid , and pretreated by heat treatment in vacuum . The nano‐diamond surface structure was characterized by X‐ray diffraction （ XRD ） , Raman spectroscopy and Fourier transform infrared spectroscopy （ FTIR ） . The thermogravimetric‐differential thermal analysis（ TG‐DTA） was used to investigate the heat resistance of nano‐diamond . The results showed that this method could remove most impurities on the surface of nano‐diamond and raise the heat resistance of nano‐diamond . But some groups were difficult to remove , such as the hydroxyl and carbonyl groups .

关 键 词：纳米金刚石 表面改性 表面结构 

分 类 号：TQ164[化学工程—高温制品工业]