Abstract

To obtain high-performance magnetorheological fluid, first, the effectiveness of single surfactant including oleic acid, sodium dodecyl benzene sulfonate, OP4 emulsifier and Tween80 are analyzed by testing the sedimentation stability and viscosity. And then, according to the research results, a novel preparation process, that is the compounding of different surfactants, is proposed. Finally, the effect of surfactants compounding type and content on the properties of magnetorheological fluid are also researched. It is found that the properties of MR fluids can be improved effectively by compounding of oleic acid and sodium dodecyl benzene sulfonate, and the most appropriate compounding content relationship is 4.0 g: 4.0 g.

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