Effect of particle shape and size on flow properties of lactose powders

被引：309

作者：

Fu, Xiaowei ^{[1
]}

Huck, Deborah ^{[2
]}

Makein, Lisa ^{[2
]}

Armstrong, Brian ^{[1
]}

Willen, Ulf ^{[2
]}

Freeman, Tim ^{[1
]}

机构：

[1] Freeman Technol, Tewkesbury GL20 8DN, Glos, England

[2] Malvern Instruments Ltd, Malvern WR14 1XZ, Worcs, England

来源：

PARTICUOLOGY | 2012年 / 10卷 / 02期

关键词：

Particle; Shape; Size; Powder flow; Flowability; BULK;

D O I：

10.1016/j.partic.2011.11.003

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

The shape and size of particles are understood to affect the bulk behaviour of powders, though there are but few studies that present quantitative information on the relationship between particle shape and the flow properties of powder. This is due in part to the lack of techniques for rapidly determining both particle shape and the range of flow characteristics that describe the response of powders to the stress and shear experienced during their processing. This study presents data that quantifies the influence of particle shape/size of three different lactose powders on their respective flow and bulk characteristics. Two of the samples differ in size but have similar shapes: the third sample is more spherical but similar in size to one of the other two samples. The results demonstrate that in addition to particle size, particle shape significantly affect the flow characteristics of a powder over a wide range of stress conditions. (C) 2012 Chinese Society of Particuology and Institute of Process Engineering, Chinese Academy of Sciences. Published by Elsevier B.V. All rights reserved.

引用

页码：203 / 208

页数：6

共 16 条

[1] Shape and size characterization of potassium titanate fibers by image analysis [J].