Preparation of ER fluid made up of composite particles and their properties

In this paper, Si0₂/P (MMA - MAA) microcapsule composite particles are prepared and a new ER fluid made up of composite particals and silicon oil are prepared also. The mechanical property and material property of the ER fluid are tested. The results show that the composite particles improve the stability of ER fluid and the shearing strength of ER fluid increases with the increasing electric field strength.