Preparation method of magnetic acrylic fibers and magnetic acrylic fibers

The invention belongs to the technical field of functional fiber preparation, and discloses a preparation method of magnetic acrylic fibers and the magnetic acrylic fibers. The preparation method comprises the following steps of (1) adding magnetic powder into water, and dispersing the magnetic powder to obtain magnetic powder slurry; (2) adding a reaction monomer in a polymerization reaction into the magnetic powder slurry, simultaneously adding a catalyst, an accelerant, a reducing agent, a pH regulator and a dispersing agent, and enabling the reaction monomer to be subjected to an in-situ polymerization reaction to prepare magnetic powder polymer slurry; (3) performing monomer removing, filtering and drying on the magnetic powder polymer slurry to prepare a magnetic powder polymer; and (4) dissolving the magnetic powder polymer in dimethylacetamide to obtain a glue solution, and performing wet spinning on the glue solution to obtain the magnetic acrylic fibers. The magnetic powder and the reaction monomer