▎ 摘　　要

NOVELTY - Magnetorheological foam based 3D printing material is claimed. The 3D printing material is prepared by adding porous polymer microsphere as main material, fold deforming graphene microfilms undergo through high pressure states, encapsulating magnetic nano-particle, compressing into the hole of the porous polymer micro sphere and adhering on the surface of the porous polymer, dispersing and adhering nano-magnetic particle/graphene microplate composite magnetic nano-material to the hole of the porous polymer micro sphere and the surface of the porous polymer to obtain final product. USE - Used as magnetorheological foam based 3D printing material. ADVANTAGE - The material: avoid the deposition of magnetorheological fluid in a multi-empty carrier. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for preparing magnetorheological foam based 3D printing material comprising (i) mixing 2-5 pts. wt. nano magnetic particles, 1-2 pts. wt. surfactant, 2-10 pts. wt. graphene micro sheet, 10-12 pts. wt. epoxy resin prepolymer, 20-24 pts. wt. porous polymer microspheres and 55-68 pts. wt. organic solution, (ii) mixing nano magnetic particles, surfactant, organic solution, stirring, dispersing, adding graphene micro sheet, adhering the surface of the graphene micro sheet to the nano magnetic particles and stirring to obtain composite nano magnetic particles/graphene microchip dispersion, and (iii) mixing the composite nano magnetic particle/graphene microchip dispersion with an epoxy resin prepolymer, adding into the high pressure vessel with the porous polymer microspheres at cold isostatic pressure of 0.2-2.1 MPa, bending and wrinkling graphene micro sheet under high pressure conditions, wrapping the nano magnetic particles, compressing into the pores of the porous polymer microspheres and adhering to the surface of the porous polymer, dispersing and adhering the nano magnetic particle/graphene microchip composite magnetic nano material to the porous polymer microsphere hole and the porous polymer surface to obtain a densely packed magnetorheological foam based 3D printed material.