机械球磨工艺制备超细粒径分散染料的研究  

A Study on the Preparation of Ultra-Fine Grain Size of Disperse Dyes by Mechanical Ball Milling Technology

作　　者：沈卫庆[1] 项斌[1] 高建荣[1] 贾建洪[1] 戈乔华[1] 方频[1] 

机构地区：[1]浙江工业大学绿色化学合成技术国家重点实验室培育基地,杭州310014

出　　处：《染料与染色》2006年第2期14-17,共4页Dyestuffs and Coloration

基　　金：浙江省重大科技攻关项目(2004c1018)

摘　　要：从分散染料的团聚和破碎机理出发，建立了团聚体破碎概率的数学公式，并据此优化了工艺参数。当染料固含量为30％，染料、分散剂=1：0．6-0．8（重量比），染料：介质=1：20（重量比），溶剂为乙二醇，复合分散剂为MF粉／Reax-85A=1：2（重量比），研磨介质：1mm氧化锆球珠，球磨时间为10～12小时，得到了均匀稳定的染料液体，平均粒径为138nm，90％的粒径小于186nm。The mechanical ball milling technology is one of the most conventional technology in processing disperse dyes. It can be used to improve the disperse dyes＇ commercial quality. Considering on the mechanism of the dyes clusters＇ agglomeration and deagglomeration, the paper established the mathematic equation of the deagglomerating probability and then optimized the process technology parameters. Experimental results showed that the uniform and stable disperse dye liquors can be obtained by ball milling between 10 h and 12 h, in the presence of the auxiliary （glycol）,the formulated dispersant （MF and Reax- 85A, MF/Reax- 85A weight ratio at 1/2） and the milling media （φ1mm zirconia ball） ,when the dyes solid content is 30 percents, the dyes/dispersant weight ratio is in the range of 1/ 0. 6 to 1/0. 8 and the dyes/media weight ratio is 1/20. The average size of the dye liquors is 138nm and the 90 percents size is smaller than 186nm.

关 键 词：分散染料 染料商品化 破碎概率 砂磨 

分 类 号：TQ613.24[化学工程—精细化工]