Preparation method for poly (butylene succinate)/ethylene vinyl acetate blended material

The invention provides a preparation method for a poly (butylene succinate) (PBS) /ethylene vinyl acetate (EVA) blended material, which is characterized in that the blended material consists of 70-95 portions of PBS, 4-28 portions of EVA copolymers, 0.01-1 portion of reactive cross-linking agent and 0.05-5 portions of antioxidant by weight, wherein the sum of the portions of all raw materials is 100; the raw materials are evenly mixed in a high-speed mixing machine, the evenly mixed mixture is extruded, granulated, cooled and cut into particles to obtain blended material particles; and the particles are dried in vacuum to obtain the blended material. In the preparation method, since the reactive cross-linking agent is added into a composite system and can react with the PBS and the EVA atthe same time to produce micro cross-linked products, the compatibility between the EVA and the PBS is improved, the performance of the blended material is superior to pure PBS and the blended material has biodegradability an