▎ 摘　　要

NOVELTY - Preparation of medicinal aluminum-plastic composite cover involves (1) taking pre-cleaned aluminum sheets, (2) silica coating the pre-cleaned aluminum sheet, stamping to form aluminum component, (3) using aluminum component to prepare modified aluminum component, (4) mixing polypropylene, compatibilizer, ethylene-vinyl alcohol copolymer and dodecylamine-grafted graphene, melt extruding, processing to form plastic component, (5) mixing boric acid and deionized water, adding aniline and ammonium persulfate solution, obtaining material (A), mixing ethyl orthosilicate, deionized water and absolute ethanol, hydrolyzing, adding methyltriethoxysilane, boric acid and the material (A), adding 3-aminopropyltriethoxysilane, heating, adding the plastic component, obtaining modified plastic component, (6) taking modified plastic component and modified aluminum component, fastening the modified plastic component on the modified aluminum component, stamping and compounding. USE - Preparation of medicinal aluminum-plastic composite cover (claimed) for medicine packaging, oral liquid bottle, medicine liquid bottle and infusion bottle. ADVANTAGE - The method enables to prepare medical aluminum-plastic combined cover, which has excellent waterproof and moisture-proof performance, and high practicability. DETAILED DESCRIPTION - Preparation of medicinal aluminum-plastic composite cover involves (1) ultrasonically cleaning aluminum sheet in deionized water, ultrasonic cleaning with acetone and ethanol, ultrasonically cleaning in deionized water, drying to obtain pre-cleaned aluminum sheets, (2) taking the pre-cleaned aluminum sheet, silica coating on both sides, forming a protective layer of silicon dioxide to obtain an aluminum sheet coated with a silica protective layer on the surface, cutting, stamping to form aluminum component, (3) placing aluminum component in mixture of hydrofluoric acid, hydrochloric acid and p-toluenesulfonic acid, etching 6-9 minutes under ultrasonic conditions, washing with deionized water, transferring to stearic acid at 65-70degreesC, impregnating, hot ethanol cleaning, drying to obtain modified aluminum component, (4) mixing polypropylene, compatibilizer, ethylene-vinyl alcohol copolymer and dodecylamine-grafted graphene on high-speed mixer, melt extruding, processing to form plastic component, (5) mixing boric acid and deionized water, adding aniline and ammonium persulfate solution, reacting at 5-8degreesC, washing with deionized water wash, vacuum drying, obtaining material (A), mixing ethyl orthosilicate, deionized water and absolute ethanol, hydrolyzing at 45-50degreesC, adding methyltriethoxysilane, boric acid and the material (A), mixing, heating to 70-75degrees Celsius, stirring, adding 3-aminopropyltriethoxysilane, heating to 90-95degreesC, obtaining mixed paint, taking plastic component, placing in mixed paint, impregnating, dry curing, obtaining modified plastic component, (6) taking modified plastic component and modified aluminum component, fastening the modified plastic component on the modified aluminum component, stamping and compounding.