Modified composite material containing recycled polycarbonate and preparation method thereof

The invention discloses a modified composite material containing recycled polycarbonate and a preparation method thereof, and belongs to the technical field of composite materials. According to the method, 4-((1S)-1-amino-2-ethoxyl)-2-methyl benzoic acid and benzoyl chloride are subjected to an amidation reaction, and then the amidation reaction and paratoluensulfonyl chloride are synthesized into carboxyl-containing oxazoline. The preparation method comprises the following steps: carrying out esterification reaction on carboxyl on carboxyl-containing oxazoline and hydroxyl on 3-dimethylamino-1, 2-propylene glycol to synthesize an oxazoline-containing tertiary amine compound, and introducing bromo-n-decane into the tertiary amine compound to synthesize the oxazoline-containing quaternary ammonium salt. The preparation method comprises the following steps: grafting ethylene propylene diene monomer by using maleic anhydride, and grafting quaternary ammonium salt onto the ethylene propylene diene monomer by usin