▎ 摘　　要

NOVELTY - The method involves preparing raw materials. The polystyrene acrylic emulsion and nano copper powder coated with polydopamine are taken in sequence, The graphene oxide, isocyanate, microcrystalline wax are taken in portions by weight. The graphene oxide and isocyanate are heated to reflux for 4 hours, and the molten microcrystalline wax is added and cooled to obtain graphene after stirring and mixing uniformly. The polystyrene acrylic-nano-copper powder compound of river sand is weighed, and the grafted silicone epoxy resin, petroleum resin and terpene resin are poured into the mixer at a temperature of 60 degrees C. The graphene is added after heating, stirring and mixing for 4 hours, and the nano silica, river sand and polystyrene acrylic-nano copper powder composite are added after ultrasonic dispersion for 40 minutes at an ultrasonic frequency of 60 kHz. The product is obtained by heating and stirring in a vacuum for 4 hours and the product is cooled to room temperature naturally. USE - Method for preparing abrasion-resistant and impact-resistant epoxy mortar repair material. ADVANTAGE - The product has good wear resistance and impact resistance.