▎ 摘　　要

NOVELTY - Preparing patulin-removing resin material involves: (1) mixing hydroxyapatite and graphene, washing, then introducing into a pickling solution, stirring and rinsing; (2) mixing ferric chloride solution, ferrous chloride solution and ethyl orthosilicate, stirring, leaving still, filtering, drying and then roasting to obtain ferroferric oxide-titanium dioxide composite powder; (3) mixing 4-hydroxyindole, methacrylic acid and acetonitrile, followed by pre-polymerizing, then adding the composite powder, ethylene glycol dimethacrylate and azobisisobutyronitrile, separating the polymer, and drying to obtain molecularly imprinted nanomaterials; (4) mixing the product obtained in step (1) and the nanomaterials, followed by immersing in a phenolic resin suspension and drying; and (5) mixing polyvinyl nitrile and polyurethane, dissolving in dimethylformamide to form spinning solution, then adding material obtained in step (4), spinning into a resin fiber membrane and drying. USE - The method is useful for preparing patulin-removing resin material. ADVANTAGE - The method enables simple and large-scale preparation of patulin-removing resin material with excellent mechanical performance, prolonged service life and high strength and quantity in an environmentally-friendly manner. DETAILED DESCRIPTION - Preparing patulin-removing resin material involves: (1) mixing hydroxyapatite and graphene in a mass ratio (6-7):(3-4), ultrasonically washing the mixed mixture with alkali washing solution and water at 50-60 degrees C for 30-40 minutes, then introducing into a pickling solution, stirring for 20-30 minutes and rinsing with clean water; (2) mixing 1 mol/l ferric chloride solution, 2 mol/l ferrous chloride solution and ethyl orthosilicate in a mass ratio of (5-6):(1-1.2):(1.4-1.5), continuously stirring until the mixture is dissolved, then adding aqueous ammonia to adjust the pH-value of the solution to neutral, leaving still for 15-20 minutes, carrying out vacuum filtration, drying the product at 70-80 degrees C for 12-24 hours, and then roasting at 300-350 degrees C for 2-3 hours to obtain ferroferric oxide-titanium dioxide composite powder; (3) mixing 4-hydroxyindole, methacrylic acid and acetonitrile in a mass ratio of (1-1.5):(0.6-0.8):(27-28), followed by carrying out pre-polymerization for 30-40 minutes, then adding the ferroferric oxide-titanium dioxide composite powder obtained in step (2), ethylene glycol dimethacrylate and azobisisobutyronitrile, introducing nitrogen to remove oxygen, sealing and shaking at 65-70 degrees C for 18-24 hours, magnetically separating the polymer, and drying to obtain molecularly imprinted nanomaterials; (4) mixing the product obtained in step (1) and the molecularly imprinted nanomaterials obtained in step (3) in a mass ratio (8-9): (1-2), followed by immersing in a phenolic resin suspension, stirring 10-15 minutes, heating and drying; and (5) mixing polyvinyl nitrile and polyurethane in a mass ratio (7-8):(2-3), followed by dissolving in dimethylformamide to form 10-15 (wt.%/vol.%) spinning solution, then adding 1-1.5 %mass material obtained in step (4), spinning into a resin fiber membrane and drying.