Preparation and Characterization of Novel Aqueous MR Fluids Based on Core-Shell Composite Particles
In order to improve the stability and the ability of anti-oxidization of aqueous magnetorheological(MR)fluids,a novel kind of core-shell composite(CSC)particles,which are carbonyl iron(CI)particles chemisorbed by N-polyglycol ethylenediamine triacetic acid(PED3A)through chelating reaction,were used as a dispersed phase and dispersed in water for preparing the aqueous MR fluids.The magnetorheological properties of the novel MR fluids were analyzed using advanced rheometric expansion system(ARES)equipped with a magnetic field supplier.It was found that the novel MR fluids exhibited typical aqueous MR characteristics without any noticeable change compared with the CI based MR fluids,but the dispersion stability and the anti-oxidation property were substantially improved as revealed by stability test and the test using thermogravimetric-differential scanning calorimetry.
Magnetorheological fluids Aqueous Core-shell composite particles Carbonyl iron
H.B. Cheng J. M. Wang J. Zhang W.Y. Zhao W.L. Qu Q. J. Zhang W. X. Gao
State Key Laboratory of Advanced Technology for Materials Synthesis and Processing,Wuhan University Jiangsu Tianyun Advanced Materials Company,Jiangsu,China
国际会议
The World Forum on Smart Materials and Smart Structures Technology(SMSST07)(2007年世界智能材料与智能结构技术论坛)
重庆·南京
英文
2007-05-01（万方平台首次上网日期，不代表论文的发表时间）