▎ 摘　　要

NOVELTY - Electrical rheological liquid of nano particles with same core and different shell has dispersed phase of titanate nano tube with core-shell structure. The titanate nano tube is coated with polyaniline 10-50 wt.% with polyaniline and 50-90 wt.% graphene oxide, where the length of the titanic acid nano-tube particle is 1-10 µm, and the length-diameter ratio is 20-100; the mass ratio of the dispersed phase particles in the electrorheological fluid is 0.5-20 wt.%, preferably 2-10 wt.%. USE - Electrical rheological liquid of nano particles with same core and different shell. ADVANTAGE - The electrical rheological liquid of nano particles with same core and different shell has good suspension stability and electrorheological property, and the dynamic yield stress can reach over 140kPa when the electric field strength is 3 kv/mm. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for preparing electrical rheological liquid of nano particles with same core and different shell, which involves mixing and stirring the titanium oxide powder and strong alkali solution, fully mixing and reacting under ultrasonic stirring, heating to 120-150℃ and reacting for 12-36h, adjusting the pH value to 6-8, filtering and separating the titanate nano tube, dispersing the titanate nano tube in the acid liquid, adding aniline and stirring uniformly, adding polymerization initiator, reacting for 1-6h, filtering and cleaning to obtain titanate nano tube coated by polyaniline, soaking the obtain titanate nano tube in alkali liquid with pH value of 8-10 for 10-30 min to pre-treat, adding the pre-treated titanate nano tube into graphene dispersion liquid, heating to 120-150℃ and stirring for 1-6h under high pressure condition, calcining for 1-3h at 300-400℃ under inert atmosphere after washing, drying titanate nano tube coated with oxidized graphene, mixing the polyaniline-coated titanate nanotubes and the graphene-coated titanate nanotube particles, and adding them into a liquid insulating medium to obtain an electrorheological fluid of the same core and different shell nanoparticles.