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The Optical Characteristics Method of Sedimentation Stability for Dense Magnetic Particles Suspensions
Jiang Wanquana1, Zhu Chunlinga1, Zhu Yuruia,1, Chen Zuyaoa1, Zhang Peiqingb2
1.Department of Chemistry, University of Science and Technology of China, Hefei 230026;2.Mechanics & Engineering, University of Science and Technology of China, Hefei 230026
Abstract:
A new method for characterization of dense magnetic particles suspension is presented. Spectrophotometric method to timing determination of amounts of settled micron magnetic particles in a dense particles suspension was used. When nano particles TiO2were added to the dense magnetic suspension, sedimentation stability of the system was evidently improved.
Key words:  Dense magnetic particels suspension, Sedimentation stability, Characterization of Stability
FundProject:国家自然科学基金(No.19772049)及中国科学技术大学材料力学行为和材料设计实验室资助.
磁性粒子浓悬浮体系沉降稳定性的光学表征
江万权1, 朱春玲1, 朱玉瑞1, 陈祖耀1, 张培强2
1.中国科学技术大学化学系合肥 230026;2.中国科学技术大学力学和机械工程系合肥 230026
摘要:
报道一种新的磁性粒子浓悬浮体系沉降稳定性的表征方法.对均匀分散的磁性粒子浓悬浮体系,采用定时光度测量法对其沉降稳定性进行表征,可以得到一定时间内粒子沉降的定量数据.此方法可用于低体积分数磁流变液沉降稳定性的表征.同时,对比分析表明,在磁性粒子浓悬浮体系中加入纳米级TiO2粒子,能使制备的磁流变液稳定性显著增强.
关键词:  磁性粒子浓悬浮液  沉降稳定性  光学表征方法
DOI:10.1088/1674-0068/14/5/601-605
分类号: