Study of sedimentation stability of magnetorheological fluid

Abstract: Magnetorheological fluid settlement issue has been one of the major issues that affect the performance of the magnetorheological fluid, it was focused by major enterprise and research institutions as new intelligent materials. This paper describes the settlement issue and analyses the reasons that causing settling of MRF at zero field strength. It comments the ways to improve the stability of magnetorheological fluid sedimentation problems, and makes a comprehensive introduction of the improvement measures. for instance: adding a surfactant and stabilizer, the organic polymer is wrapped in the surface of the magnetic particles, the soft magnetic particles are coated in non-metallic surface, the magnetic particle surface coated with a layer of metal powder, using improved version of the preparation process, adjusting ball feed ratio and milling time appropriately, adding in nanomaterials, etc