为探讨不同的球磨介质对球磨法制备纳米锑粉的影响,以250μm大小的锑粉为原料,采用干法机械球磨以及添加不同的球磨介质进行湿法机械球磨的方式制备出不同类型的锑基粉末.应用XRD、TEM及FT-IR对制备的锑基粉末的结构、形貌及粒径大小进行了表征分析.研究结果表明:不同的球磨介质对机械球磨法制备纳米锑粉的作用是不同的.采用于法机械球磨制备出的锑粉会产生氧化现象,采用湿法球磨可制备出纳米锑粉.当球磨介质为蒸馏水时,可有效防止纳米锑粉的氧化,但锑粉的分散性不佳；当球磨介质为蒸馏水和十二烷基硫酸钠时,可制备出分散均匀、粒径分布不均匀的纳米锑粉；当球磨介质为蒸馏水和OP-10时,可制备出分散均匀、粒径分布均匀纳米锑粉,锑粉的平均粒径约为20nm.%The effect of milling mediums on nano-Sb powder prepared by ball milling was explored. Taking Sb powder of 250 μm as raw material, some different Sb powder was synthesized by mechanical ball milling in the course of dry grinding or wet grinding with different additives as milling mediums respectively. Crystalline phases, morphology and particle size of Sb powder samples were characterized by XRD, TEM and FT-IR. Results show that different milling mediums play different role in the preparing process of nano-Sb powder by using ball milling method. There is oxidation phenomenon of Sb powder in the preparing of dry grinding, while pure nano-Sb particles can be prepared by ball milling with some milling mediums. When the milling medium is distilled water, Sb powder can be prevented from oxidating effectively, however, its dispersion is low. The Sb powder prepared with milling mediums of distilled water and sodium dodecyl sulfate is higher dispersibility, which has a wide distribution of particle size. When the milling mediums of distilled water and OP-10 were used, the resulting nano-Sb powder is evenly dispersed, which has a narrow distribution of particle size and an average particle size of 20 nm .
展开▼
