二氧化硅粉末助流剂改善V_E粉流动性的初步研究  

Preliminary study on improvement of flowability of V_E powder by silica powder glidant

作　　者：张莉华[1] 洪毅敏[1] 吕红萍[1] 许新德[1] 马金萍[1] 陈少军[2] 

机构地区：[1]浙江医药股份有限公司新昌制药厂,浙江新昌312500 [2]浙江医药高等专科学校,浙江宁波315100

出　　处：《中国油脂》2016年第3期77-79,共3页China Oils and Fats

摘　　要：探讨二氧化硅粉末助流剂对VE粉流动性的改善作用。在VE粉中添加不同比例的二氧化硅粉末助流剂,充分混合均匀,测定其对VE粉休止角、松密度、振实密度、压缩度、流量、水分散性及水分散液稳定性的影响,确定二氧化硅粉末助流剂在VE粉中的最适添加量。结果表明：VE粉中添加二氧化硅粉末助流剂后,VE粉休止角减少,流量增大,松密度和振实密度增加,压缩度减小;添加二氧化硅粉末助流剂对VE粉水分散性及水分散液稳定性无影响;当添加量为1.5%-2.0%时,VE粉流动性改善效果最佳。The improvement of flowability of VEpowder by silica powder glidant was explored. Different proportions of silica powder glidant were added in VEpowder,and fully mixed. Then the influences of addition of silica powder glidant on the angle of repose,bulk density,tap density,compressibility,flow rate,water dispersibility and water dispersion stability of VEpowder were measured,and the optimal addition dosage of silica powder glidant in VEpowder was determined. The results showed that after adding silica powder glidant in VEpowder,the angle of repose and compressibility of VEpowder decreased,while the flow rate,bulk density and tap density of VEpowder increased. Adding silica powder glidant had no effect on the water dispersibility and water dispersion stability of VEpowder. When addition dosage was 1. 5%-2. 0%,the improvement effect on flowability of VEpowder was the best.

关 键 词：VE粉 流动性 助流剂 二氧化硅 

分 类 号：TQ466.5[化学工程—制药化工]