摘要：使用以Carr指数法为理论基础研发的、唯一符合美国材料试验协会(ASTM)标准的细川综合测粉仪器——粉体流动性-喷流性测量仪的最新型号PT-X型,采用3种粒度不同的日本工业标准(JIS)试验用粉体,综合分析评价该仪器自动测量的先进性与可靠性,并将其发展应用于纳米复合颗粒的物性评价,探讨该测量法在生产与研发中的实用价值。结果表明,通过改进Carr指数法测粉仪器的自动化水平,可以提高粉体流动性及喷流性的测量精度与再现性,并能将其应用在纳米粉体的物性评价。

关键词：粉体物性；Carr 指数；流动性；喷流性；纳米复合颗粒

Abstract：The newest model of powder tester PT-X,which was the only powder characterizing instrument based on Carr index method according to the ASTM standard,was recently developed.It was used to carry out tests with three JIS test powders having different particle sizes for the comprehensive analysis and the evaluation of its advanced and reliable features in the automatic measurement and so on.Then it was applied for the evaluation of nano-particles properties to discuss the practical value of this method in the production and research.The experimental results showed that automating the powder characterizing instrument based on Carr index method could improve the measuring precision and reproducibility.It could be used for physical property evaluation of nano-sized powders.

Keywords：Carr index；flowability；floodability；nano-sized composite particle