摘要
实验选用无水乙醇为液相介质,聚乙烯吡咯烷酮(PVP)作为修饰剂,采用高能球磨法,成功制备出分散良好的纳米碳化硅粉。通过正交实验,分析了球磨时间、碳化硅颗粒的加入量、碳化硅与修饰剂的质量比和转速4个工艺参数对纳米碳化硅粉的产率、产量和粉体的特征粒径D50的影响。结果表明在本实验条件下,制备纳米碳化硅粉的最佳工艺参数为:时间15h,碳化硅的加入量30g,碳化硅与修饰剂的质量比2:1,转速300r/min。
By using absolute ethanol as liquid medium, PVP as modifying reagent, well-dispersed SiC nanoparticles were successful prepared by high energy hall milling. By orthogonal experimental method, the relationship between technological parameters （time, mass of SiC groins, relative dosage of modifying reagent and rotating speed） and quality indexes （productive rate of SiC nanopartieles, output and the eigenvalue D50 ） were studied. The result showed that the optimum technological parameters of preparation of SiC nanopartieles are 15 hours in time, 30 g of SiC grains, ratio of SiC to modifying reagent 2：1. rotate speed of 300 r/min.
出处
《化工矿物与加工》
CAS
北大核心
2009年第4期11-14,共4页
Industrial Minerals & Processing
关键词
高能球磨
制备
分散
纳米碳化硅
high energy ball milling
preparation
dispersing
SiCnanopartieles
