▎ 摘　　要

NOVELTY - Preparation of isolation function network structure composite material after micro plastic treatment in wastewater comprises mixing functional additive and dopamine hydrochloride in organic solvent, adding tris (hydroxymethyl) aminomethane, mixing in shade at room temperature for 5 hours, unfolding recovered waste mask in organic solvent, mixing in shade at room temperature for 5 hours, filtering, drying to obtain waste mask with capture network, fixing waste mask with capture network in device containing the waste water containing micro plastics, performing adsorption treatment of micro plastics in waste water, taking out waste mask with micro plastics after reaching adsorption saturation, removing nose bar and rubber band of waste mask with micro plastic to obtain mask body, stacking mask bodies, crushing, drying after hot pressing to obtain composite material with isolation function network structure, processing composite material by melt blending and granulating. USE - The method is for preparation of isolation function network structure composite material after micro plastic treatment in wastewater. ADVANTAGE - The method has better functional and mechanical properties with very small amount of functional additives.